def vol2png(qcname, tag="", overlay=True, overlayiterated=True):
import PUMI.func_preproc.Onevol as onevol
QCDir = os.path.abspath(globals._SinkDir_ + "/" + globals._QCDir_)
if not os.path.exists(QCDir):
os.makedirs(QCDir)
if tag:
tag = "_" + tag
inputspec = pe.Node(
utility.IdentityInterface(fields=['bg_image', 'overlay_image']),
name='inputspec')
analysisflow = pe.Workflow(name=qcname + tag + '_qc')
myonevol_bg = onevol.onevol_workflow(wf_name="onebg")
analysisflow.connect(inputspec, 'bg_image', myonevol_bg, 'inputspec.func')
if overlay and not overlayiterated:
#myonevol_ol = onevol.onevol_workflow(wf_name="oneol")
#analysisflow.connect(inputspec, 'overlay_image', myonevol_ol, 'inputspec.func')
slicer = pe.MapNode(interface=fsl.Slicer(),
iterfield=['in_file'],
name='slicer')
# Create png images for quality check
if overlay and overlayiterated:
myonevol_ol = onevol.onevol_workflow(wf_name="oneol")
analysisflow.connect(inputspec, 'overlay_image', myonevol_ol,
'inputspec.func')
slicer = pe.MapNode(interface=fsl.Slicer(),
iterfield=['in_file', 'image_edges'],
name='slicer')
if not overlay:
slicer = pe.MapNode(interface=fsl.Slicer(),
iterfield=['in_file'],
name='slicer')
slicer.inputs.image_width = 2000
slicer.inputs.out_file = qcname
# set output all axial slices into one picture
slicer.inputs.sample_axial = 5
#slicer.inputs.middle_slices = True
# Save outputs which are important
ds_qc = pe.Node(interface=io.DataSink(), name='ds_qc')
ds_qc.inputs.base_directory = QCDir
ds_qc.inputs.regexp_substitutions = [("(\/)[^\/]*$", tag + ".ppm")]
analysisflow.connect(myonevol_bg, 'outputspec.func1vol', slicer, 'in_file')
if overlay and not overlayiterated:
analysisflow.connect(inputspec, 'overlay_image', slicer, 'image_edges')
if overlay and overlayiterated:
analysisflow.connect(myonevol_ol, 'outputspec.func1vol', slicer,
'image_edges')
analysisflow.connect(slicer, 'out_file', ds_qc, qcname)
return analysisflow
def create_activation_pics(sbref_brain, thresh_zstat1, thresh_zstat2,
thresh_zfstat1):
import nipype.interfaces.fsl as fsl
Overlay_t1_Contrast = fsl.Overlay()
Overlay_t1_Contrast.inputs.background_image = sbref_brain
Overlay_t1_Contrast.inputs.stat_image = thresh_zstat1
Overlay_t1_Contrast.inputs.auto_thresh_bg = True
Overlay_t1_Contrast.inputs.stat_thresh = (2.300302, 12)
Overlay_t1_Contrast.inputs.transparency = True
Overlay_t1_Contrast.inputs.out_file = 'rendered_thresh_zstat1.nii.gz'
Overlay_t1_Contrast.run()
Slicer_t1_Contrast = fsl.Slicer()
Slicer_t1_Contrast.inputs.in_file = 'rendered_thresh_zstat1.nii.gz'
Slicer_t1_Contrast.inputs.all_axial = True
Slicer_t1_Contrast.inputs.image_width = 750
Slicer_t1_Contrast.inputs.out_file = 'rendered_thresh_zstat1.png'
Slicer_t1_Contrast.run()
#===============================================================================
Overlay_t2_Contrast = fsl.Overlay()
Overlay_t2_Contrast.inputs.background_image = sbref_brain
Overlay_t2_Contrast.inputs.stat_image = thresh_zstat1
Overlay_t2_Contrast.inputs.auto_thresh_bg = True
Overlay_t2_Contrast.inputs.stat_thresh = (2.300302, 12)
Overlay_t2_Contrast.inputs.transparency = True
Overlay_t2_Contrast.inputs.out_file = 'rendered_thresh_zstat2.nii.gz'
Overlay_t2_Contrast.run()
Slicer_t2_Contrast = fsl.Slicer()
Slicer_t2_Contrast.inputs.in_file = 'rendered_thresh_zstat2.nii.gz'
Slicer_t2_Contrast.inputs.all_axial = True
Slicer_t2_Contrast.inputs.image_width = 750
Slicer_t2_Contrast.inputs.out_file = 'rendered_thresh_zstat2.png'
Slicer_t2_Contrast.run()
#===============================================================================
Overlay_f_Contrast = fsl.Overlay()
Overlay_f_Contrast.inputs.background_image = sbref_brain
Overlay_f_Contrast.inputs.stat_image = thresh_zstat1
Overlay_f_Contrast.inputs.auto_thresh_bg = True
Overlay_f_Contrast.inputs.stat_thresh = (2.300302, 12)
Overlay_f_Contrast.inputs.transparency = True
Overlay_f_Contrast.inputs.out_file = 'rendered_thresh_zfstat1.nii.gz'
Overlay_f_Contrast.run()
Slicer_f_Contrast = fsl.Slicer()
Slicer_f_Contrast.inputs.in_file = 'rendered_thresh_zfstat1.nii.gz'
Slicer_f_Contrast.inputs.all_axial = True
Slicer_f_Contrast.inputs.image_width = 750
Slicer_f_Contrast.inputs.out_file = 'rendered_thresh_zfstat1.png'
Slicer_f_Contrast.run()
def slice_bet(tmpdir, niftiname):
slice = fsl.Slicer()
slice.inputs.in_file = niftiname
slice.inputs.args = '-s 1 -x 0.4 ' + tmpdir + '/1.png -x 0.5 ' + tmpdir + '/2.png -x 0.6 ' + tmpdir + '/3.png -y 0.4 ' + tmpdir + '/4.png -y 0.5 ' + tmpdir + '/5.png -y 0.6 ' + tmpdir + '/6.png -z 0.4 ' + tmpdir + '/7.png -z 0.5 ' + tmpdir + '/8.png -z 0.6'
slice.inputs.out_file = tmpdir + '/9.png'
res = slice.run()
print "Sliced"
def create_tbss_1_preproc(name='tbss_1_preproc'):
"""Preprocess FA data for TBSS: erodes a little and zero end slicers and
creates masks(for use in FLIRT & FNIRT from FSL).
A pipeline that does the same as tbss_1_preproc script in FSL
Example
--------
>>>tbss1 = tbss.create_tbss_1_preproc(name='tbss1')
>>>tbss1.run()
Inputs::
inputnode.fa_list
Outputs::
outputnode.fa_list
outputnode.mask_list
"""
# Define the inputnode
inputnode = pe.Node(interface = util.IdentityInterface(fields=["fa_list"]),
name="inputnode")
# Prep the FA images
prepfa = pe.MapNode(fsl.ImageMaths(suffix="_prep"),
name="prepfa",
iterfield=['in_file','op_string'])
# Slicer
slicer = pe.MapNode(fsl.Slicer(all_axial = True, image_width=1280),
name='slicer',
iterfield=['in_file'])
# Create a mask
getmask = pe.MapNode(fsl.ImageMaths(op_string="-bin", suffix="_mask"),
name="getmask",
iterfield=['in_file'])
# Define the tbss1 workflow
tbss1 = pe.Workflow(name="tbss1")
tbss1.connect([
(inputnode, prepfa, [("fa_list", "in_file")]),
(inputnode, prepfa, [(("fa_list", tbss1_op_string), "op_string")]),
(prepfa, getmask, [("out_file", "in_file")]),
(prepfa, slicer,[('out_file', 'in_file')]),
])
# Define the outputnode
outputnode = pe.Node(interface = util.IdentityInterface(fields=["fa_list",
"mask_list"]),
name="outputnode")
tbss1.connect([
(prepfa, outputnode, [("out_file", "fa_list")]),
(getmask, outputnode, [("out_file","mask_list")]),
])
return tbss1
def slice_it_up(input, input_type, logpath, outfile, arguments):
####INVOKE SLICER FOR QA PURPOSES
slice = fsl.Slicer()
slice.inputs.in_file = input
if input_type == 'mprage_nifti':
slice.inputs.image_width = 1200
slice.inputs.sample_axial = 7
slice.inputs.out_file = outfile
res = slice.run()
add_to_log(logpath, "Sliced at : " + outfile)
elif input_type == 'nifti':
slice.inputs.image_width = 800
slice.inputs.all_axial = True
slice.inputs.out_file = outfile
res = slice.run()
add_to_log(logpath, "Sliced at : " + outfile)
def create_overlay_workflow(name='overlay'):
"""Setup overlay workflow
"""
overlay = pe.Workflow(name='overlay')
overlaystats = pe.MapNode(interface=fsl.Overlay(), name="overlaystats",
iterfield=['stat_image'])
overlaystats.inputs.show_negative_stats = True
overlaystats.inputs.auto_thresh_bg = True
slicestats = pe.MapNode(interface=fsl.Slicer(),
name="slicestats",
iterfield=['in_file'])
slicestats.inputs.all_axial = True
slicestats.inputs.image_width = 512
overlay.connect(overlaystats, 'out_file', slicestats, 'in_file')
return overlay
def create_visualize_pipeline(name='visualize'):
# initiate workflow
visualize = Workflow(name='visualize')
# inputnode
inputnode = Node(
util.IdentityInterface(fields=['ts_transformed', 'mni_template']),
name='inputnode')
# outputnode
outputnode = Node(util.IdentityInterface(fields=['output_image']),
name='outputnode')
#apply smoothing
slicer = Node(fsl.Slicer(sample_axial=6, image_width=750), name='smooth')
visualize.connect([(inputnode, slicer, [('ts_transformed', 'in_file'),
('mni_template', 'image_edges')]),
(slicer, outputnode, [('out_file', 'output_image')])])
return visualize
groupmodelfitcz.inputs.inputspec.regressors = _REGRESSORS_
groupmodelfitcz.inputs.inputspec.contrasts = _CONTRASTS_
groupmodelfitcz.inputs.inputspec.groups = _GROUPS_
pipe.connect(smoothcz, 'outputnode.smoothed_files', groupmodelfitcz,
'inputspec.copes')
pipe.connect(preproc, 'outputspec.func2anat_mat', groupmodelfitcz,
'inputspec.func2anat_mat')
pipe.connect(anatproc, 'outputspec.out_warpfield', groupmodelfitcz,
'inputspec.anat_to_std_warp')
########################################################################################################################
# Nodes for QC
png_bet = pe.MapNode(interface=fsl.Slicer(),
name='png_bet',
iterfield=['in_file'])
png_bet.inputs.image_width = 1750
png_bet.inputs.all_axial = True
pipe.connect(anatproc, 'outputspec.out_brain', png_bet, 'in_file')
substitutions = [('trait_added', '')] # bugfix?
regex_subs = [('.*/trait_added', ''), ('mapflow/_qc_bet.*/s', 's'),
('/bet/.*.png', '.png')]
qc_bet = pe.MapNode(nio.DataSink(infields=['bet'], parameterization=False),
name='qc_bet',
iterfield=['container', 'bet'])
qc_bet.inputs.container = _SUBJECTS_
qc_bet.inputs.regexp_substitutions = regex_subs
#==========================================================================================================================================================
#overlay thresh_zstat1
overlay_zstat = Node(fsl.Overlay(), name='overlay')
overlay_zstat.inputs.auto_thresh_bg = True
overlay_zstat.inputs.stat_thresh = (3.1, 10)
overlay_zstat.inputs.transparency = True
overlay_zstat.inputs.out_file = 'rendered_thresh_zstat.nii.gz'
overlay_zstat.inputs.show_negative_stats = True
overlay_zstat.inputs.background_image = template_brain
#==========================================================================================================================================================
#generate pics thresh_zstat1
slicer_zstat = Node(fsl.Slicer(), name='slicer')
slicer_zstat.inputs.sample_axial = 2
slicer_zstat.inputs.image_width = 2000
slicer_zstat.inputs.out_file = 'rendered_thresh_zstat.png'
proc_3rd_level.connect([
(infosource, selectfiles, [('frequencies', 'frequencies'),
('zstats', 'zstats')]),
(selectfiles, smooth_est, [('zstat', 'zstat')]),
(
selectfiles, cluster_zstats, [('zstat', 'zstat')]
), #I need the original file to get the number and then i mask it inside the function
(smooth_est, cluster_zstats, [('volume', 'volume'), ('dlh', 'dlh')]),
(cluster_zstats, apply_thresh, [('threshold_file', 'in_file')]),
(cluster_zstats, overlay_zstat, [('threshold_file', 'stat_image')]),
(overlay_zstat, slicer_zstat, [('out_file', 'in_file')]),
def overlay(wf_name='overlay', samethres=True):
"""
samethres: use False in case of voxel-based thresholding, where ptoz must be a mapnode (also in case of TFCE corr)
- Get the maximum intensity value of the output thresholded image. This used is while rendering the Z statistic image::
fslstats zstat1_cluster_threshold.nii.gz -R
arguments
-R : output <min intensity> <max intensity>
- Rendering. For details see `FEAT <http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#poststats>`_::
overlay 1 0 MNI152_T1_2mm_brain.nii.gz
-a zstat1_cluster_threshold.nii.gz
2.30 15.67
zstat1_cluster_threshold_overlay.nii.gz
slicer zstat1_cluster_threshold_overlay.nii.gz
-L -A 750
zstat1_cluster_threshold_overlay.png
The Z statistic range selected for rendering is automatically calculated by default,
to run from red (minimum Z statistic after thresholding) to yellow (maximum Z statistic, here
maximum intensity).
"""
overl = pe.Workflow(name=wf_name)
inputnode = pe.Node(
util.IdentityInterface(fields=['stat_image', 'threshold', 'bg_image']),
name='inputspec')
outputnode = pe.Node(
util.IdentityInterface(fields=['overlay_threshold', 'rendered_image']),
name='outputspec')
#max and minimum intensity values
image_stats = pe.MapNode(interface=fsl.ImageStats(),
name='image_stats',
iterfield=['in_file'])
image_stats.inputs.op_string = '-p 100'
#create tuple of z_threshold and max intensity value of threshold file
if (samethres):
create_tuple = pe.MapNode(util.Function(
input_names=['infile_a', 'infile_b'],
output_names=['out_file'],
function=get_tuple),
name='create_tuple',
iterfield=['infile_b'],
nested=True)
else:
create_tuple = pe.MapNode(util.Function(
input_names=['infile_a', 'infile_b'],
output_names=['out_file'],
function=get_tuple),
name='create_tuple',
iterfield=['infile_a', 'infile_b'],
nested=True)
#colour activation overlaying
overlay = pe.MapNode(
interface=fsl.Overlay(),
name='overlay',
iterfield=['stat_image', 'stat_thresh', 'background_image'])
overlay.inputs.transparency = True
overlay.inputs.auto_thresh_bg = True
overlay.inputs.out_type = 'float'
#colour rendering
slicer = pe.MapNode(interface=fsl.Slicer(),
name='slicer',
iterfield=['in_file'])
#set max picture width
slicer.inputs.image_width = 1750
# set output all axial slices into one picture
slicer.inputs.all_axial = True
overl.connect(inputnode, 'stat_image', image_stats, 'in_file')
overl.connect(image_stats, 'out_stat', create_tuple, 'infile_b')
overl.connect(inputnode, 'threshold', create_tuple, 'infile_a')
overl.connect(inputnode, 'stat_image', overlay, 'stat_image')
overl.connect(create_tuple, 'out_file', overlay, 'stat_thresh')
overl.connect(inputnode, 'bg_image', overlay, 'background_image')
overl.connect(overlay, 'out_file', slicer, 'in_file')
overl.connect(overlay, 'out_file', outputnode, 'overlay_threshold')
overl.connect(slicer, 'out_file', outputnode, 'rendered_image')
return overl
def create_preproc_report_wf(report_dir, name="preproc_report"):
wf = pe.Workflow(name=name)
inputspec = pe.Node(util.IdentityInterface(fields=[
'art_detect_plot', 'mean_epi', 'reg_file', 'ribbon', 'fssubjects_dir',
'tsnr_file', 'report_name', 'subject_id'
]),
name="inputspec")
def plot_epi_to_t1_coregistration(epi_file, reg_file, ribbon,
fssubjects_dir):
import pylab as plt
from nipy.labs import viz
import nibabel as nb
import numpy as np
import os
import nipype.interfaces.freesurfer as fs
anat = nb.load(ribbon).get_data()
anat[anat > 1] = 1
anat_affine = nb.load(ribbon).get_affine()
func = nb.load(epi_file).get_data()
func_affine = nb.load(epi_file).get_affine()
fig = plt.figure(figsize=(8, 6), edgecolor='k', facecolor='k')
slicer = viz.plot_anat(np.asarray(func),
np.asarray(func_affine),
black_bg=True,
cmap=plt.cm.spectral,
cut_coords=(-6, 3, 12),
figure=fig,
axes=[0, .50, 1, .33])
slicer.contour_map(np.asarray(anat),
np.asarray(anat_affine),
levels=[.51],
colors=[
'r',
])
slicer.title(
"Mean EPI with cortical surface contour overlay (before registration)",
size=12,
color='w',
alpha=0)
res = fs.ApplyVolTransform(source_file=epi_file,
reg_file=reg_file,
fs_target=True,
subjects_dir=fssubjects_dir).run()
func = nb.load(res.outputs.transformed_file).get_data()
func_affine = nb.load(res.outputs.transformed_file).get_affine()
slicer = viz.plot_anat(np.asarray(func),
np.asarray(func_affine),
black_bg=True,
cmap=plt.cm.spectral,
cut_coords=(-6, 3, 12),
figure=fig,
axes=[0, 0, 1, .33])
slicer.contour_map(np.asarray(anat),
np.asarray(anat_affine),
levels=[.51],
colors=[
'r',
])
slicer.title(
"Mean EPI with cortical surface contour overlay (after registration)",
size=12,
color='w',
alpha=0)
plt.savefig("reg_plot.png",
facecolor=fig.get_facecolor(),
edgecolor='none')
return os.path.abspath("reg_plot.png")
plot_reg = pe.Node(util.Function(
function=plot_epi_to_t1_coregistration,
input_names=['epi_file', 'reg_file', 'ribbon', 'fssubjects_dir'],
output_names=['plot_file']),
name="plot_reg")
wf.connect(inputspec, "mean_epi", plot_reg, "epi_file")
wf.connect(inputspec, "reg_file", plot_reg, "reg_file")
wf.connect(inputspec, "ribbon", plot_reg, "ribbon")
wf.connect(inputspec, "fssubjects_dir", plot_reg, "fssubjects_dir")
plot_tsnr = pe.Node(fsl.Slicer(), name="plot_tsnr")
plot_tsnr.inputs.all_axial = True
plot_tsnr.inputs.image_width = 600
wf.connect(inputspec, "tsnr_file", plot_tsnr, "in_file")
write_report = pe.Node(ReportSink(
orderfields=["motion parameters", "tSNR", "coregistration"]),
name="write_report")
write_report.inputs.base_directory = report_dir
def prepend_title(s_id):
return "Resting state fMRI preprocessing report for " + s_id
wf.connect(inputspec, ("subject_id", prepend_title), write_report,
"report_name")
wf.connect(inputspec, "art_detect_plot", write_report, "motion parameters")
wf.connect(plot_tsnr, "out_file", write_report, "tSNR")
wf.connect(plot_reg, "plot_file", write_report, "coregistration")
return wf
clustering_t.inputs.out_index_file = 'cluster_mask_zstat' clustering_t.inputs.out_localmax_txt_file = 'lmax_zstat.txt' clustering_t.inputs.connectivity = 26 # ============================================================================================================================ # In[15]: # overlay t contrast overlay_t_contrast = Node(fsl.Overlay(), name='overlay_t_contrast') overlay_t_contrast.inputs.auto_thresh_bg = True overlay_t_contrast.inputs.stat_thresh = (2.300302, 5) overlay_t_contrast.inputs.transparency = True # ============================================================================================================================ # In[15]: # slicer slicer_t_contrast = Node(fsl.Slicer(), name='generate_t_contrast_image') slicer_t_contrast.inputs.all_axial = True slicer_t_contrast.inputs.image_width = 500 # ============================================================================================================================ # |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| # |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| # |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| # ============================================================================================================================ mask_zfstat = Node(fsl.ApplyMask(), name='mask_zfstat') mask_zfstat.inputs.out_file = 'thresh_zfstat.nii.gz' # ============================================================================================================================ # In[15]:
#==========================================================================================================================================================
#overlay thresh_zstat1
overlay_cope = Node(fsl.Overlay(), name='overlay')
overlay_cope.inputs.auto_thresh_bg = True
overlay_cope.inputs.stat_thresh = (3.1, 10)
overlay_cope.inputs.transparency = True
overlay_cope.inputs.out_file = 'rendered_thresh_zstat.nii.gz'
overlay_cope.inputs.show_negative_stats = True
overlay_cope.inputs.background_image = standard_brain
#==========================================================================================================================================================
#generate pics thresh_zstat1
slicer_cope = Node(fsl.Slicer(), name='slicer')
slicer_cope.inputs.sample_axial = 2
slicer_cope.inputs.image_width = 2000
slicer_cope.inputs.out_file = 'rendered_thresh_zstat.png'
proc_3rd_level.connect([
(infosource, selectfiles, [('tasks', 'tasks'),
('contrasts', 'contrasts')]),
(selectfiles, smooth_est, [('contrast', 'contrast')]),
(selectfiles, mask_zstat, [('contrast', 'in_file')]),
(mask_zstat, cluster_copes, [('out_file', 'in_file')]),
(smooth_est, cluster_copes, [('volume', 'volume'), ('dlh', 'dlh')]),
# (selectfiles, cluster_copes, [('contrast','cope_file')]),
(cluster_copes, overlay_cope, [('threshold_file', 'stat_image')]),
(overlay_cope, slicer_cope, [('out_file', 'in_file')]),
def create_confound_removal_workflow(workflow_name="confound_removal"):
inputnode = pe.Node(util.IdentityInterface(
fields=["subject_id", "timeseries", "reg_file", "motion_parameters"]),
name="inputs")
# Get the Freesurfer aseg volume from the Subjects Directory
getaseg = pe.Node(io.FreeSurferSource(subjects_dir=fs.Info.subjectsdir()),
name="getaseg")
# Binarize the Aseg to use as a whole brain mask
asegmask = pe.Node(fs.Binarize(min=0.5, dilate=2), name="asegmask")
# Extract and erode a mask of the deep cerebral white matter
extractwm = pe.Node(fs.Binarize(match=[2, 41], erode=3), name="extractwm")
# Extract and erode a mask of the ventricles and CSF
extractcsf = pe.Node(fs.Binarize(match=[4, 5, 14, 15, 24, 31, 43, 44, 63],
erode=1),
name="extractcsf")
# Mean the timeseries across the fourth dimension
meanfunc = pe.MapNode(fsl.MeanImage(),
iterfield=["in_file"],
name="meanfunc")
# Invert the anatomical coregistration and resample the masks
regwm = pe.MapNode(fs.ApplyVolTransform(inverse=True, interp="nearest"),
iterfield=["source_file", "reg_file"],
name="regwm")
regcsf = pe.MapNode(fs.ApplyVolTransform(inverse=True, interp="nearest"),
iterfield=["source_file", "reg_file"],
name="regcsf")
regbrain = pe.MapNode(fs.ApplyVolTransform(inverse=True, interp="nearest"),
iterfield=["source_file", "reg_file"],
name="regbrain")
# Convert to Nifti for FSL tools
convertwm = pe.MapNode(fs.MRIConvert(out_type="niigz"),
iterfield=["in_file"],
name="convertwm")
convertcsf = pe.MapNode(fs.MRIConvert(out_type="niigz"),
iterfield=["in_file"],
name="convertcsf")
convertbrain = pe.MapNode(fs.MRIConvert(out_type="niigz"),
iterfield=["in_file"],
name="convertbrain")
# Add the mask images together for a report image
addconfmasks = pe.MapNode(fsl.ImageMaths(suffix="conf",
op_string="-mul 2 -add",
out_data_type="char"),
iterfield=["in_file", "in_file2"],
name="addconfmasks")
# Overlay and slice the confound mask overlaied on mean func for reporting
confoverlay = pe.MapNode(fsl.Overlay(auto_thresh_bg=True,
stat_thresh=(.7, 2)),
iterfield=["background_image", "stat_image"],
name="confoverlay")
confslice = pe.MapNode(fsl.Slicer(image_width=800, label_slices=False),
iterfield=["in_file"],
name="confslice")
confslice.inputs.sample_axial = 2
# Extract the mean signal from white matter and CSF masks
wmtcourse = pe.MapNode(fs.SegStats(exclude_id=0, avgwf_txt_file=True),
iterfield=["segmentation_file", "in_file"],
name="wmtcourse")
csftcourse = pe.MapNode(fs.SegStats(exclude_id=0, avgwf_txt_file=True),
iterfield=["segmentation_file", "in_file"],
name="csftcourse")
# Extract the mean signal from over the whole brain
globaltcourse = pe.MapNode(fs.SegStats(exclude_id=0, avgwf_txt_file=True),
iterfield=["segmentation_file", "in_file"],
name="globaltcourse")
# Build the confound design matrix
conf_inputs = [
"motion_params", "global_waveform", "wm_waveform", "csf_waveform"
]
confmatrix = pe.MapNode(util.Function(input_names=conf_inputs,
output_names=["confound_matrix"],
function=make_confound_matrix),
iterfield=conf_inputs,
name="confmatrix")
# Regress the confounds out of the timeseries
confregress = pe.MapNode(fsl.FilterRegressor(filter_all=True),
iterfield=["in_file", "design_file", "mask"],
name="confregress")
# Rename the confound mask png
renamepng = pe.MapNode(util.Rename(format_string="confound_sources.png"),
iterfield=["in_file"],
name="renamepng")
# Define the outputs
outputnode = pe.Node(
util.IdentityInterface(fields=["timeseries", "confound_sources"]),
name="outputs")
# Define and connect the confound workflow
confound = pe.Workflow(name=workflow_name)
confound.connect([
(inputnode, meanfunc, [("timeseries", "in_file")]),
(inputnode, getaseg, [("subject_id", "subject_id")]),
(getaseg, extractwm, [("aseg", "in_file")]),
(getaseg, extractcsf, [("aseg", "in_file")]),
(getaseg, asegmask, [("aseg", "in_file")]),
(extractwm, regwm, [("binary_file", "target_file")]),
(extractcsf, regcsf, [("binary_file", "target_file")]),
(asegmask, regbrain, [("binary_file", "target_file")]),
(meanfunc, regwm, [("out_file", "source_file")]),
(meanfunc, regcsf, [("out_file", "source_file")]),
(meanfunc, regbrain, [("out_file", "source_file")]),
(inputnode, regwm, [("reg_file", "reg_file")]),
(inputnode, regcsf, [("reg_file", "reg_file")]),
(inputnode, regbrain, [("reg_file", "reg_file")]),
(regwm, convertwm, [("transformed_file", "in_file")]),
(regcsf, convertcsf, [("transformed_file", "in_file")]),
(regbrain, convertbrain, [("transformed_file", "in_file")]),
(convertwm, addconfmasks, [("out_file", "in_file")]),
(convertcsf, addconfmasks, [("out_file", "in_file2")]),
(addconfmasks, confoverlay, [("out_file", "stat_image")]),
(meanfunc, confoverlay, [("out_file", "background_image")]),
(confoverlay, confslice, [("out_file", "in_file")]),
(confslice, renamepng, [("out_file", "in_file")]),
(regwm, wmtcourse, [("transformed_file", "segmentation_file")]),
(inputnode, wmtcourse, [("timeseries", "in_file")]),
(regcsf, csftcourse, [("transformed_file", "segmentation_file")]),
(inputnode, csftcourse, [("timeseries", "in_file")]),
(regbrain, globaltcourse, [("transformed_file", "segmentation_file")]),
(inputnode, globaltcourse, [("timeseries", "in_file")]),
(inputnode, confmatrix, [("motion_parameters", "motion_params")]),
(wmtcourse, confmatrix, [("avgwf_txt_file", "wm_waveform")]),
(csftcourse, confmatrix, [("avgwf_txt_file", "csf_waveform")]),
(globaltcourse, confmatrix, [("avgwf_txt_file", "global_waveform")]),
(confmatrix, confregress, [("confound_matrix", "design_file")]),
(inputnode, confregress, [("timeseries", "in_file")]),
(convertbrain, confregress, [("out_file", "mask")]),
(confregress, outputnode, [("out_file", "timeseries")]),
(renamepng, outputnode, [("out_file", "confound_sources")]),
])
return confound
Setup overlay workflow
----------------------
"""
overlay = pe.Workflow(name='overlay')
overlaystats = pe.MapNode(interface=fsl.Overlay(),
name="overlaystats",
iterfield=['stat_image'])
overlaystats.inputs.show_negative_stats = True
overlaystats.inputs.auto_thresh_bg = True
"""Use :class:`nipype.interfaces.fsl.Slicer` to create images of the overlaid
statistical volumes for a report of the first-level results.
"""
slicestats = pe.MapNode(interface=fsl.Slicer(),
name="slicestats",
iterfield=['in_file'])
slicestats.inputs.all_axial = True
slicestats.inputs.image_width = 512
overlay.connect(overlaystats, 'out_file', slicestats, 'in_file')
"""
Set up first-level workflow
---------------------------
"""
def sort_copes(files):
numelements = len(files[0])
def create_skullstrip_workflow(name="skullstrip"):
# Define the workflow inputs
inputnode = pe.Node(util.IdentityInterface(fields=["timeseries"]),
name="inputs")
# Mean the timeseries across the fourth dimension
meanfunc1 = pe.MapNode(fsl.MeanImage(),
iterfield=["in_file"],
name="meanfunc1")
# Skullstrip the mean functional image
stripmean = pe.MapNode(fsl.BET(mask=True, no_output=True, frac=0.3),
iterfield=["in_file"],
name="stripmean")
# Use the mask from skullstripping to strip each timeseries
maskfunc1 = pe.MapNode(fsl.ApplyMask(),
iterfield=["in_file", "mask_file"],
name="maskfunc1")
# Determine the 2nd and 98th percentile intensities of each run
getthresh = pe.MapNode(fsl.ImageStats(op_string="-p 2 -p 98"),
iterfield=["in_file"],
name="getthreshold")
# Threshold functional data at 10% of the 98th percentile
threshold = pe.MapNode(fsl.ImageMaths(out_data_type="char",
suffix="_thresh"),
iterfield=["in_file"],
name="threshold")
# Dilate the mask
dilatemask = pe.MapNode(fsl.DilateImage(operation="max"),
iterfield=["in_file"],
name="dilatemask")
# Mask the runs again with this new mask
maskfunc2 = pe.MapNode(fsl.ApplyMask(),
iterfield=["in_file", "mask_file"],
name="maskfunc2")
# Get a new mean image from each functional run
meanfunc2 = pe.MapNode(fsl.MeanImage(),
iterfield=["in_file"],
name="meanfunc2")
# Slice the mean func for reporting
meanslice = pe.MapNode(fsl.Slicer(image_width=800, label_slices=False),
iterfield=["in_file", "image_edges"],
name="meanslice")
meanslice.inputs.sample_axial = 2
# Rename the outputs
meanname = pe.MapNode(util.Rename(format_string="mean_func",
keep_ext=True),
iterfield=["in_file"],
name="meanname")
maskname = pe.MapNode(util.Rename(format_string="functional_mask",
keep_ext=True),
iterfield=["in_file"],
name="maskname")
pngname = pe.MapNode(util.Rename(format_string="mean_func.png"),
iterfield=["in_file"],
name="pngname")
# Define the workflow outputs
outputnode = pe.Node(util.IdentityInterface(
fields=["timeseries", "mean_func", "mask_file", "report_png"]),
name="outputs")
# Define and connect the workflow
skullstrip = pe.Workflow(name=name)
skullstrip.connect([
(inputnode, meanfunc1, [("timeseries", "in_file")]),
(meanfunc1, stripmean, [("out_file", "in_file")]),
(inputnode, maskfunc1, [("timeseries", "in_file")]),
(stripmean, maskfunc1, [("mask_file", "mask_file")]),
(maskfunc1, getthresh, [("out_file", "in_file")]),
(getthresh, threshold, [(("out_stat", get_thresh_op), "op_string")]),
(maskfunc1, threshold, [("out_file", "in_file")]),
(threshold, dilatemask, [("out_file", "in_file")]),
(inputnode, maskfunc2, [("timeseries", "in_file")]),
(dilatemask, maskfunc2, [("out_file", "mask_file")]),
(maskfunc2, meanfunc2, [("out_file", "in_file")]),
(meanfunc2, meanslice, [("out_file", "in_file")]),
(dilatemask, meanslice, [("out_file", "image_edges")]),
(meanslice, pngname, [("out_file", "in_file")]),
(meanfunc2, meanname, [("out_file", "in_file")]),
(dilatemask, maskname, [("out_file", "in_file")]),
(maskfunc2, outputnode, [("out_file", "timeseries")]),
(pngname, outputnode, [("out_file", "report_png")]),
(maskname, outputnode, [("out_file", "mask_file")]),
(meanname, outputnode, [("out_file", "mean_func")]),
])
return skullstrip
def easy_thresh(wf_name):
"""
Workflow for carrying out cluster-based thresholding
and colour activation overlaying
Parameters
----------
wf_name : string
Workflow name
Returns
-------
easy_thresh : object
Easy thresh workflow object
Notes
-----
`Source <https://github.com/FCP-INDI/C-PAC/blob/master/CPAC/easy_thresh/easy_thresh.py>`_
Workflow Inputs::
inputspec.z_stats : string (nifti file)
z_score stats output for t or f contrast from flameo
inputspec.merge_mask : string (nifti file)
mask generated from 4D Merged derivative file
inputspec.z_threshold : float
Z Statistic threshold value for cluster thresholding. It is used to
determine what level of activation would be statistically significant.
Increasing this will result in higher estimates of required effect.
inputspec.p_threshold : float
Probability threshold for cluster thresholding.
inputspec.paramerters : string (tuple)
tuple containing which MNI and FSLDIR path information
Workflow Outputs::
outputspec.cluster_threshold : string (nifti files)
the thresholded Z statistic image for each t contrast
outputspec.cluster_index : string (nifti files)
image of clusters for each t contrast; the values
in the clusters are the index numbers as used
in the cluster list.
outputspec.overlay_threshold : string (nifti files)
3D color rendered stats overlay image for t contrast
After reloading this image, use the Statistics Color
Rendering GUI to reload the color look-up-table
outputspec.overlay_rendered_image : string (nifti files)
2D color rendered stats overlay picture for each t contrast
outputspec.cluster_localmax_txt : string (text files)
local maxima text file, defines the coordinates of maximum value
in the cluster
Order of commands:
- Estimate smoothness of the image::
smoothest --mask= merge_mask.nii.gz --zstat=.../flameo/stats/zstat1.nii.gz
arguments
--mask : brain mask volume
--zstat : filename of zstat/zfstat image
- Create mask. For details see `fslmaths <http://www.fmrib.ox.ac.uk/fslcourse/lectures/practicals/intro/index.htm#fslutils>`_::
fslmaths ../flameo/stats/zstat1.nii.gz
-mas merge_mask.nii.gz
zstat1_mask.nii.gz
arguments
-mas : use (following image>0) to mask current image
- Copy Geometry image dimensions, voxel dimensions, voxel dimensions units string, image orientation/origin or qform/sform info) from one image to another::
fslcpgeom MNI152_T1_2mm_brain.nii.gz zstat1_mask.nii.gz
- Cluster based thresholding. For details see `FEAT <http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#poststats>`_::
cluster --dlh = 0.0023683100
--in = zstat1_mask.nii.gz
--oindex = zstat1_cluster_index.nii.gz
--olmax = zstat1_cluster_localmax.txt
--othresh = zstat1_cluster_threshold.nii.gz
--pthresh = 0.0500000000
--thresh = 2.3000000000
--volume = 197071
arguments
--in : filename of input volume
--dlh : smoothness estimate = sqrt(det(Lambda))
--oindex : filename for output of cluster index
--othresh : filename for output of thresholded image
--olmax : filename for output of local maxima text file
--volume : number of voxels in the mask
--pthresh : p-threshold for clusters
--thresh : threshold for input volume
Z statistic image is thresholded to show which voxels or clusters of voxels are activated at a particular significance level.
A Z statistic threshold is used to define contiguous clusters. Then each cluster's estimated significance level (from GRF-theory)
is compared with the cluster probability threshold. Significant clusters are then used to mask the original Z statistic image.
- Get the maximum intensity value of the output thresholded image. This used is while rendering the Z statistic image::
fslstats zstat1_cluster_threshold.nii.gz -R
arguments
-R : output <min intensity> <max intensity>
- Rendering. For details see `FEAT <http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#poststats>`_::
overlay 1 0 MNI152_T1_2mm_brain.nii.gz
-a zstat1_cluster_threshold.nii.gz
2.30 15.67
zstat1_cluster_threshold_overlay.nii.gz
slicer zstat1_cluster_threshold_overlay.nii.gz
-L -A 750
zstat1_cluster_threshold_overlay.png
The Z statistic range selected for rendering is automatically calculated by default,
to run from red (minimum Z statistic after thresholding) to yellow (maximum Z statistic, here
maximum intensity).
High Level Workflow Graph:
.. image:: ../images/easy_thresh.dot.png
:width: 800
Detailed Workflow Graph:
.. image:: ../images/easy_thresh_detailed.dot.png
:width: 800
Examples
--------
>>> import easy_thresh
>>> preproc = easy_thresh.easy_thresh("new_workflow")
>>> preproc.inputs.inputspec.z_stats= 'flameo/stats/zstat1.nii.gz'
>>> preproc.inputs.inputspec.merge_mask = 'merge_mask/alff_Z_fn2standard_merged_mask.nii.gz'
>>> preproc.inputs.inputspec.z_threshold = 2.3
>>> preproc.inputs.inputspec.p_threshold = 0.05
>>> preproc.inputs.inputspec.parameters = ('/usr/local/fsl/', 'MNI152')
>>> preporc.run() -- SKIP doctest
"""
easy_thresh = pe.Workflow(name=wf_name)
inputnode = pe.Node(util.IdentityInterface(fields=[
'z_stats', 'merge_mask', 'z_threshold', 'p_threshold', 'parameters'
]),
name='inputspec')
outputnode = pe.Node(util.IdentityInterface(fields=[
'cluster_threshold', 'cluster_index', 'cluster_localmax_txt',
'overlay_threshold', 'rendered_image'
]),
name='outputspec')
### fsl easythresh
# estimate image smoothness
smooth_estimate = pe.MapNode(interface=fsl.SmoothEstimate(),
name='smooth_estimate',
iterfield=['zstat_file'])
# run clustering after fixing stats header for talspace
zstat_mask = pe.MapNode(interface=fsl.MultiImageMaths(),
name='zstat_mask',
iterfield=['in_file'])
#operations to perform
#-mas use (following image>0) to mask current image
zstat_mask.inputs.op_string = '-mas %s'
#fslcpgeom
#copy certain parts of the header information (image dimensions,
#voxel dimensions, voxel dimensions units string, image orientation/origin
#or qform/sform info) from one image to another
copy_geometry = pe.MapNode(util.Function(
input_names=['infile_a', 'infile_b'],
output_names=['out_file'],
function=copy_geom),
name='copy_geometry',
iterfield=['infile_a', 'infile_b'])
##cluster-based thresholding
#After carrying out the initial statistical test, the resulting
#Z statistic image is then normally thresholded to show which voxels or
#clusters of voxels are activated at a particular significance level.
#A Z statistic threshold is used to define contiguous clusters.
#Then each cluster's estimated significance level (from GRF-theory) is
#compared with the cluster probability threshold. Significant clusters
#are then used to mask the original Z statistic image for later production
#of colour blobs.This method of thresholding is an alternative to
#Voxel-based correction, and is normally more sensitive to activation.
# cluster = pe.MapNode(interface=fsl.Cluster(),
# name='cluster',
# iterfield=['in_file', 'volume', 'dlh'])
# #output of cluster index (in size order)
# cluster.inputs.out_index_file = True
# #thresholded image
# cluster.inputs.out_threshold_file = True
# #local maxima text file
# #defines the cluster cordinates
# cluster.inputs.out_localmax_txt_file = True
cluster = pe.MapNode(util.Function(
input_names=[
'in_file', 'volume', 'dlh', 'threshold', 'pthreshold', 'parameters'
],
output_names=['index_file', 'threshold_file', 'localmax_txt_file'],
function=call_cluster),
name='cluster',
iterfield=['in_file', 'volume', 'dlh'])
#max and minimum intensity values
image_stats = pe.MapNode(interface=fsl.ImageStats(),
name='image_stats',
iterfield=['in_file'])
image_stats.inputs.op_string = '-R'
#create tuple of z_threshold and max intensity value of threshold file
create_tuple = pe.MapNode(util.Function(
input_names=['infile_a', 'infile_b'],
output_names=['out_file'],
function=get_tuple),
name='create_tuple',
iterfield=['infile_b'])
#colour activation overlaying
overlay = pe.MapNode(interface=fsl.Overlay(),
name='overlay',
iterfield=['stat_image', 'stat_thresh'])
overlay.inputs.transparency = True
overlay.inputs.auto_thresh_bg = True
overlay.inputs.out_type = 'float'
#colour rendering
slicer = pe.MapNode(interface=fsl.Slicer(),
name='slicer',
iterfield=['in_file'])
#set max picture width
slicer.inputs.image_width = 750
# set output all axial slices into one picture
slicer.inputs.all_axial = True
#function mapnode to get the standard fsl brain image
#based on parameters as FSLDIR,MNI and voxel size
get_backgroundimage = pe.MapNode(util.Function(
input_names=['in_file', 'file_parameters'],
output_names=['out_file'],
function=get_standard_background_img),
name='get_bckgrndimg1',
iterfield=['in_file'])
#function node to get the standard fsl brain image
#outputs single file
get_backgroundimage2 = pe.Node(util.Function(
input_names=['in_file', 'file_parameters'],
output_names=['out_file'],
function=get_standard_background_img),
name='get_backgrndimg2')
#connections
easy_thresh.connect(inputnode, 'z_stats', smooth_estimate, 'zstat_file')
easy_thresh.connect(inputnode, 'merge_mask', smooth_estimate, 'mask_file')
easy_thresh.connect(inputnode, 'z_stats', zstat_mask, 'in_file')
easy_thresh.connect(inputnode, 'merge_mask', zstat_mask, 'operand_files')
easy_thresh.connect(zstat_mask, 'out_file', get_backgroundimage, 'in_file')
easy_thresh.connect(inputnode, 'parameters', get_backgroundimage,
'file_parameters')
easy_thresh.connect(get_backgroundimage, 'out_file', copy_geometry,
'infile_a')
easy_thresh.connect(zstat_mask, 'out_file', copy_geometry, 'infile_b')
easy_thresh.connect(copy_geometry, 'out_file', cluster, 'in_file')
easy_thresh.connect(inputnode, 'z_threshold', cluster, 'threshold')
easy_thresh.connect(inputnode, 'p_threshold', cluster, 'pthreshold')
easy_thresh.connect(smooth_estimate, 'volume', cluster, 'volume')
easy_thresh.connect(smooth_estimate, 'dlh', cluster, 'dlh')
easy_thresh.connect(inputnode, 'parameters', cluster, 'parameters')
easy_thresh.connect(cluster, 'threshold_file', image_stats, 'in_file')
easy_thresh.connect(image_stats, 'out_stat', create_tuple, 'infile_b')
easy_thresh.connect(inputnode, 'z_threshold', create_tuple, 'infile_a')
easy_thresh.connect(cluster, 'threshold_file', overlay, 'stat_image')
easy_thresh.connect(create_tuple, 'out_file', overlay, 'stat_thresh')
easy_thresh.connect(inputnode, 'merge_mask', get_backgroundimage2,
'in_file')
easy_thresh.connect(inputnode, 'parameters', get_backgroundimage2,
'file_parameters')
easy_thresh.connect(get_backgroundimage2, 'out_file', overlay,
'background_image')
easy_thresh.connect(overlay, 'out_file', slicer, 'in_file')
easy_thresh.connect(cluster, 'threshold_file', outputnode,
'cluster_threshold')
easy_thresh.connect(cluster, 'index_file', outputnode, 'cluster_index')
easy_thresh.connect(cluster, 'localmax_txt_file', outputnode,
'cluster_localmax_txt')
easy_thresh.connect(overlay, 'out_file', outputnode, 'overlay_threshold')
easy_thresh.connect(slicer, 'out_file', outputnode, 'rendered_image')
return easy_thresh
"""
selectcontrast = pe.Node(interface=util.Select(), name="selectcontrast")
"""Use :class:`nipype.interfaces.fsl.Overlay` to combine the statistical output of
the contrast estimate and a background image into one volume.
"""
overlaystats = pe.Node(interface=fsl.Overlay(), name="overlaystats")
overlaystats.inputs.stat_thresh = (3, 10)
overlaystats.inputs.show_negative_stats = True
overlaystats.inputs.auto_thresh_bg = True
"""Use :class:`nipype.interfaces.fsl.Slicer` to create images of the overlaid
statistical volumes for a report of the first-level results.
"""
slicestats = pe.Node(interface=fsl.Slicer(), name="slicestats")
slicestats.inputs.all_axial = True
slicestats.inputs.image_width = 750
l1analysis.connect([
(modelspec, level1design, [('session_info', 'session_info')]),
(level1design, level1estimate, [('spm_mat_file', 'spm_mat_file')]),
(level1estimate, contrastestimate, [('spm_mat_file', 'spm_mat_file'),
('beta_images', 'beta_images'),
('residual_image', 'residual_image')]),
(contrastestimate, selectcontrast, [('spmT_images', 'inlist')]),
(selectcontrast, overlaystats, [('out', 'stat_image')]),
(overlaystats, slicestats, [('out_file', 'in_file')])
])
"""
Preproc + Analysis pipeline
bet = pe.Node(fsl.BET(frac=0.1, mask=True),
name="bet_func")
bet2 = pe.Node(fsl.BET(frac=0.1),
name="bet_struc")
segment = pe.Node(fsl.FAST(out_basename='fast_'),
name="fastSeg")
flirting = pe.Node(fsl.FLIRT(cost_func='normmi', dof=7, searchr_x=[-180, 180],
searchr_y=[-180, 180], searchr_z=[-180,180]),
name="struc_2_func")
applyxfm = pe.MapNode(fsl.ApplyXfm(apply_xfm = True),
name="MaskEPI", iterfield=['in_file'])
erosion = pe.MapNode(fsl.ErodeImage(),
name="erode_masks", iterfield=['in_file'])
regcheckoverlay = pe.Node(fsl.Overlay(auto_thresh_bg=True, stat_thresh=(100,500)),
name='OverlayCoreg')
regcheck = pe.Node(fsl.Slicer(),
name='CheckCoreg')
#filterfeeder = pe.MapNode(fsl.ImageMeants(eig=True, ))
datasink = pe.Node(nio.DataSink(),
name='datasink')
datasink.inputs.base_directory = "/Users/Katie/Dropbox/Data/habenula/derivatives/hb_test"
# Connect alllllll the nodes!!
hb_test_wf.connect(subj_iterable, 'subject_id', DataGrabber, 'subject_id')
hb_test_wf.connect(DataGrabber, 'bold', moco, 'in_file')
hb_test_wf.connect(moco, 'out_file', extractb0, 'in_file')
hb_test_wf.connect(extractb0, 'roi_file', bet, 'in_file')
hb_test_wf.connect(bet, 'out_file', datasink, '@epi_brain')
hb_test_wf.connect(DataGrabber, 'T1', bet2, 'in_file')
hb_test_wf.connect(bet2, 'out_file', flirting, 'in_file')
def min_func_preproc(subject, sessions, data_dir, fs_dir, wd, sink, TR,
EPI_resolution):
#initiate min func preproc workflow
wf = pe.Workflow(name='MPP')
wf.base_dir = wd
wf.config['execution']['crashdump_dir'] = wf.base_dir + "/crash_files"
## set fsl output type to nii.gz
fsl.FSLCommand.set_default_output_type('NIFTI_GZ')
# I/O nodes
inputnode = pe.Node(util.IdentityInterface(fields=['subjid', 'fs_dir']),
name='inputnode')
inputnode.inputs.subjid = subject
inputnode.inputs.fs_dir = fs_dir
ds = pe.Node(nio.DataSink(base_directory=sink, parameterization=False),
name='sink')
ds.inputs.substitutions = [('moco.nii.gz.par', 'moco.par'),
('moco.nii.gz_', 'moco_')]
#infosource to interate over sessions: COND, EXT1, EXT2
sessions_infosource = pe.Node(util.IdentityInterface(fields=['session']),
name='session')
sessions_infosource.iterables = [('session', sessions)]
#select files
templates = {
'func_data': '{session}/func_data.nii.gz',
'T1_brain': 'T1/T1_brain.nii.gz',
'wmedge': 'T1/MASKS/aparc_aseg.WMedge.nii.gz'
}
selectfiles = pe.Node(nio.SelectFiles(templates, base_directory=data_dir),
name='selectfiles')
wf.connect(sessions_infosource, 'session', selectfiles, 'session')
wf.connect(sessions_infosource, 'session', ds, 'container')
##########################################################################
######################## START ######################################
##########################################################################
###########################################################################
######################## No. 3 ######################################
#change the data type to float
fsl_float = pe.Node(fsl.maths.MathsCommand(output_datatype='float'),
name='fsl_float')
wf.connect(selectfiles, 'func_data', fsl_float, 'in_file')
###########################################################################
######################## No. 4 ######################################
#get FD from fsl_motion_outliers
FD = pe.Node(fsl.MotionOutliers(out_file='func_data_FD_outliers.txt',
out_metric_values='func_data_FD.txt',
metric='fd'),
name='FD')
wf.connect(fsl_float, 'out_file', FD, 'in_file')
wf.connect(FD, 'out_metric_values', ds, 'QC.@FD')
wf.connect(FD, 'out_file', ds, 'QC.@FDoutliers')
###########################################################################
######################## No. 5 ######################################
#slice timing correction: sequential ascending
slicetimer = pe.Node(
fsl.SliceTimer(
index_dir=False,
interleaved=False,
#slice_direction=3, #z direction
time_repetition=TR,
out_file='func_data_stc.nii.gz'),
name='slicetimer')
wf.connect(fsl_float, 'out_file', slicetimer, 'in_file')
wf.connect(slicetimer, 'slice_time_corrected_file', ds, 'TEMP.@slicetimer')
###########################################################################
######################## No. 6 ######################################
#do realignment to the middle or first volume
mcflirt = pe.Node(fsl.MCFLIRT(save_mats=True,
save_plots=True,
save_rms=True,
ref_vol=1,
out_file='func_data_stc_moco.nii.gz'),
name='mcflirt')
wf.connect(slicetimer, 'slice_time_corrected_file', mcflirt, 'in_file')
wf.connect(mcflirt, 'out_file', ds, 'TEMP.@mcflirt')
wf.connect(mcflirt, 'par_file', ds, 'MOCO.@par_file')
wf.connect(mcflirt, 'rms_files', ds, 'MOCO.@rms_files')
wf.connect(mcflirt, 'mat_file', ds, 'MOCO_MAT.@mcflirt')
# plot motion parameters
rotplotter = pe.Node(fsl.PlotMotionParams(in_source='fsl',
plot_type='rotations',
out_file='rotation.png'),
name='rotplotter')
transplotter = pe.Node(fsl.PlotMotionParams(in_source='fsl',
plot_type='translations',
out_file='translation.png'),
name='transplotter')
dispplotter = pe.Node(
interface=fsl.PlotMotionParams(in_source='fsl',
plot_type='displacement',
out_file='displacement.png'),
name='dispplotter')
wf.connect(mcflirt, 'par_file', rotplotter, 'in_file')
wf.connect(mcflirt, 'par_file', transplotter, 'in_file')
wf.connect(mcflirt, 'rms_files', dispplotter, 'in_file')
wf.connect(rotplotter, 'out_file', ds, 'PLOTS.@rotplot')
wf.connect(transplotter, 'out_file', ds, 'PLOTS.@transplot')
wf.connect(dispplotter, 'out_file', ds, 'PLOTS.@disppplot')
#calculate tSNR and the mean
moco_Tmean = pe.Node(fsl.maths.MathsCommand(args='-Tmean',
out_file='moco_Tmean.nii.gz'),
name='moco_Tmean')
moco_Tstd = pe.Node(fsl.maths.MathsCommand(args='-Tstd',
out_file='moco_Tstd.nii.gz'),
name='moco_Tstd')
tSNR0 = pe.Node(fsl.maths.MultiImageMaths(op_string='-div %s',
out_file='moco_tSNR.nii.gz'),
name='moco_tSNR')
wf.connect(mcflirt, 'out_file', moco_Tmean, 'in_file')
wf.connect(mcflirt, 'out_file', moco_Tstd, 'in_file')
wf.connect(moco_Tmean, 'out_file', tSNR0, 'in_file')
wf.connect(moco_Tstd, 'out_file', tSNR0, 'operand_files')
wf.connect(moco_Tmean, 'out_file', ds, 'TEMP.@moco_Tmean')
wf.connect(moco_Tstd, 'out_file', ds, 'TEMP.@moco_Tstd')
wf.connect(tSNR0, 'out_file', ds, 'TEMP.@moco_Tsnr')
###########################################################################
######################## No. 7 ######################################
#bias field correction of mean epi for better coregistration
bias = pe.Node(
fsl.FAST(
img_type=2,
#restored_image='epi_Tmeanrestored.nii.gz',
output_biascorrected=True,
out_basename='moco_Tmean',
no_pve=True,
probability_maps=False),
name='bias')
wf.connect(moco_Tmean, 'out_file', bias, 'in_files')
wf.connect(bias, 'restored_image', ds, 'TEMP.@restored_image')
#co-registration to anat using FS BBregister and mean EPI
bbregister = pe.Node(fs.BBRegister(
subject_id=subject,
subjects_dir=fs_dir,
contrast_type='t2',
init='fsl',
out_fsl_file='func2anat.mat',
out_reg_file='func2anat.dat',
registered_file='moco_Tmean_restored2anat.nii.gz',
epi_mask=True),
name='bbregister')
wf.connect(bias, 'restored_image', bbregister, 'source_file')
wf.connect(bbregister, 'registered_file', ds, 'TEMP.@registered_file')
wf.connect(bbregister, 'out_fsl_file', ds, 'COREG.@out_fsl_file')
wf.connect(bbregister, 'out_reg_file', ds, 'COREG.@out_reg_file')
wf.connect(bbregister, 'min_cost_file', ds, 'COREG.@min_cost_file')
#inverse func2anat mat
inverseXFM = pe.Node(fsl.ConvertXFM(invert_xfm=True,
out_file='anat2func.mat'),
name='inverseXFM')
wf.connect(bbregister, 'out_fsl_file', inverseXFM, 'in_file')
wf.connect(inverseXFM, 'out_file', ds, 'COREG.@out_fsl_file_inv')
#plot the corregistration quality
slicer = pe.Node(fsl.Slicer(middle_slices=True, out_file='func2anat.png'),
name='slicer')
wf.connect(selectfiles, 'wmedge', slicer, 'image_edges')
wf.connect(bbregister, 'registered_file', slicer, 'in_file')
wf.connect(slicer, 'out_file', ds, 'PLOTS.@func2anat')
###########################################################################
######################## No. 8 ######################################
#MOCO and COREGISTRATION
#resample T1 to EPI resolution to use it as a reference image
resample_T1 = pe.Node(
fsl.FLIRT(datatype='float',
apply_isoxfm=EPI_resolution,
out_file='T1_brain_EPI.nii.gz'),
#interp='nearestneighbour'),keep spline so it looks nicer
name='resample_T1')
wf.connect(selectfiles, 'T1_brain', resample_T1, 'in_file')
wf.connect(selectfiles, 'T1_brain', resample_T1, 'reference')
wf.connect(resample_T1, 'out_file', ds, 'COREG.@resample_T1')
#concate matrices (moco and func2anat) volume-wise
concat_xfm = pe.MapNode(fsl.ConvertXFM(concat_xfm=True),
iterfield=['in_file'],
name='concat_xfm')
wf.connect(mcflirt, 'mat_file', concat_xfm, 'in_file')
wf.connect(bbregister, 'out_fsl_file', concat_xfm, 'in_file2')
wf.connect(concat_xfm, 'out_file', ds, 'MOCO2ANAT_MAT.@concat_out')
#split func_data
split = pe.Node(fsl.Split(dimension='t'), name='split')
wf.connect(slicetimer, 'slice_time_corrected_file', split, 'in_file')
#motion correction and corregistration in one interpolation step
flirt = pe.MapNode(fsl.FLIRT(apply_xfm=True,
interp='spline',
datatype='float'),
iterfield=['in_file', 'in_matrix_file'],
name='flirt')
wf.connect(split, 'out_files', flirt, 'in_file')
wf.connect(resample_T1, 'out_file', flirt, 'reference')
wf.connect(concat_xfm, 'out_file', flirt, 'in_matrix_file')
#merge the files to have 4d dataset motion corrected and co-registerd to T1
merge = pe.Node(fsl.Merge(dimension='t',
merged_file='func_data_stc_moco2anat.nii.gz'),
name='merge')
wf.connect(flirt, 'out_file', merge, 'in_files')
wf.connect(merge, 'merged_file', ds, 'TEMP.@merged')
###########################################################################
######################## No. 9 ######################################
#run BET on co-registered EPI in 1mm and get the mask
bet = pe.Node(fsl.BET(mask=True,
functional=True,
out_file='moco_Tmean_restored2anat_BET.nii.gz'),
name='bet')
wf.connect(bbregister, 'registered_file', bet, 'in_file')
wf.connect(bet, 'out_file', ds, 'TEMP.@func_data_example')
wf.connect(bet, 'mask_file', ds, 'TEMP.@func_data_mask')
#resample BET mask to EPI resolution
resample_mask = pe.Node(fsl.FLIRT(
datatype='int',
apply_isoxfm=EPI_resolution,
interp='nearestneighbour',
out_file='prefiltered_func_data_mask.nii.gz'),
name='resample_mask')
wf.connect(bet, 'mask_file', resample_mask, 'in_file')
wf.connect(resample_T1, 'out_file', resample_mask, 'reference')
wf.connect(resample_mask, 'out_file', ds, '@mask')
#apply the mask to 4D data to get rid of the "eyes and the rest"
mask4D = pe.Node(fsl.maths.ApplyMask(), name='mask')
wf.connect(merge, 'merged_file', mask4D, 'in_file')
wf.connect(resample_mask, 'out_file', mask4D, 'mask_file')
###########################################################################
######################## No. 10 ######################################
#get the values necessary for intensity normalization
median = pe.Node(fsl.utils.ImageStats(op_string='-k %s -p 50'),
name='median')
wf.connect(resample_mask, 'out_file', median, 'mask_file')
wf.connect(mask4D, 'out_file', median, 'in_file')
#compute the scaling factor
def get_factor(val):
factor = 10000 / val
return factor
get_scaling_factor = pe.Node(util.Function(input_names=['val'],
output_names=['out_val'],
function=get_factor),
name='scaling_factor')
#normalize the 4D func data with one scaling factor
multiplication = pe.Node(fsl.maths.BinaryMaths(
operation='mul', out_file='prefiltered_func_data.nii.gz'),
name='multiplication')
wf.connect(median, 'out_stat', get_scaling_factor, 'val')
wf.connect(get_scaling_factor, 'out_val', multiplication, 'operand_value')
wf.connect(mask4D, 'out_file', multiplication, 'in_file')
wf.connect(multiplication, 'out_file', ds, '@prefiltered_func_data')
###########################################################################
######################## No. 11 ######################################
#calculate tSNR and the mean of the new prefiltered and detrend dataset
tsnr_detrend = pe.Node(misc.TSNR(
regress_poly=1,
detrended_file='prefiltered_func_data_detrend.nii.gz',
mean_file='prefiltered_func_data_detrend_Tmean.nii.gz',
tsnr_file='prefiltered_func_data_detrend_tSNR.nii.gz'),
name='tsnr_detrend')
wf.connect(multiplication, 'out_file', tsnr_detrend, 'in_file')
wf.connect(tsnr_detrend, 'tsnr_file', ds, 'QC.@tsnr_detrend')
wf.connect(tsnr_detrend, 'mean_file', ds, 'QC.@detrend_mean_file')
wf.connect(tsnr_detrend, 'detrended_file', ds, '@detrend_file')
#resample the EPI mask to original EPI dimensions
convert2func = pe.Node(fsl.FLIRT(apply_xfm=True,
interp='nearestneighbour',
out_file='func_data_mask2func.nii.gz'),
name='conver2func')
wf.connect(resample_mask, 'out_file', convert2func, 'in_file')
wf.connect(bias, 'restored_image', convert2func, 'reference')
wf.connect(inverseXFM, 'out_file', convert2func, 'in_matrix_file')
wf.connect(convert2func, 'out_file', ds, 'QC.@inv')
###########################################################################
######################## RUN ######################################
wf.write_graph(dotfilename='wf.dot',
graph2use='colored',
format='pdf',
simple_form=True)
wf.run(plugin='MultiProc', plugin_args={'n_procs': 2})
#wf.run()
return
register_flow.connect(highres2standard, 'out_matrix_file', reg_outputnode,
'highres2standard')
register_flow.connect(highres2standard_warp, 'fieldcoeff_file', reg_outputnode,
'highres2standard_warp')
register_flow.connect(func2standard, 'out_file', reg_outputnode,
'func2standard')
register_flow.connect(func2standard_warp, 'out_file', reg_outputnode,
'func2standard_warp')
# Assign templates
register_flow.inputs.inputspec.target_image = template
register_flow.inputs.inputspec.target_image_brain = template_brain
register_flow.inputs.inputspec.target_mask = template_mask
# Check registration
slicer = MapNode(fsl.Slicer(), iterfield=['in_file'], name="slicer")
slicer.inputs.image_edges = os.path.join(os.environ['FSLDIR'], 'data',
'standard',
'MNI152_T1_2mm_edges.nii.gz')
slicer.inputs.args = '-a'
# Down sample template using isotropic resampling
down_sampler_ = Node(IdentityInterface(fields=['in_file']),
name='identitynode')
down_sampler_.inputs.in_file = template_brain
down_sampler = Node(fsl.FLIRT(), name='down_sampler')
down_sampler.inputs.apply_isoxfm = down_sampling
# Normalize functional images to down sampled template
warpall_func = MapNode(fsl.ApplyWarp(interp='trilinear'),
iterfield=['in_file'],
def create_tbss_1_preproc(name='tbss_1_preproc'):
"""Preprocess FA data for TBSS: erodes a little and zero end slicers and
creates masks(for use in FLIRT & FNIRT from FSL).
A pipeline that does the same as tbss_1_preproc script in FSL
Example
-------
>>> from nipype.workflows.dmri.fsl import tbss
>>> tbss1 = tbss.create_tbss_1_preproc()
>>> tbss1.inputs.inputnode.fa_list = ['s1_FA.nii', 's2_FA.nii', 's3_FA.nii']
Inputs::
inputnode.fa_list
Outputs::
outputnode.fa_list
outputnode.mask_list
outputnode.slices
"""
# Define the inputnode
inputnode = pe.Node(interface=util.IdentityInterface(fields=["fa_list"]),
name="inputnode")
# Prep the FA images
prepfa = pe.MapNode(fsl.ImageMaths(suffix="_prep"),
name="prepfa",
iterfield=['in_file', 'op_string'])
# Slicer
slicer = pe.MapNode(fsl.Slicer(all_axial=True, image_width=1280),
name='slicer',
iterfield=['in_file'])
# Create a mask
getmask1 = pe.MapNode(fsl.ImageMaths(op_string="-bin", suffix="_mask"),
name="getmask1",
iterfield=['in_file'])
getmask2 = pe.MapNode(
fsl.MultiImageMaths(op_string="-dilD -dilD -sub 1 -abs -add %s"),
name="getmask2",
iterfield=['in_file', 'operand_files'])
# $FSLDIR/bin/fslmaths FA/${f}_FA_mask -dilD -dilD -sub 1 -abs -add FA/${f}_FA_mask FA/${f}_FA_mask -odt char
# Define the tbss1 workflow
tbss1 = pe.Workflow(name=name)
tbss1.connect([
(inputnode, prepfa, [("fa_list", "in_file")]),
(inputnode, prepfa, [(("fa_list", tbss1_op_string), "op_string")]),
(prepfa, getmask1, [("out_file", "in_file")]),
(getmask1, getmask2, [("out_file", "in_file"),
("out_file", "operand_files")]),
(prepfa, slicer, [('out_file', 'in_file')]),
])
# Define the outputnode
outputnode = pe.Node(interface=util.IdentityInterface(
fields=["fa_list", "mask_list", "slices"]),
name="outputnode")
tbss1.connect([(prepfa, outputnode, [("out_file", "fa_list")]),
(getmask2, outputnode, [("out_file", "mask_list")]),
(slicer, outputnode, [('out_file', 'slices')])])
return tbss1
def create_bbregister_workflow(name="bbregister", contrast_type="t2"):
# Define the workflow inputs
inputnode = pe.Node(
util.IdentityInterface(fields=["subject_id", "source_file"]),
name="inputs")
# Estimate the registration to Freesurfer conformed space
func2anat = pe.MapNode(fs.BBRegister(contrast_type=contrast_type,
init="fsl",
epi_mask=True,
registered_file=True,
out_fsl_file=True),
iterfield=["source_file"],
name="func2anat")
# Set up a node to grab the target from the subjects directory
fssource = pe.Node(io.FreeSurferSource(subjects_dir=fs.Info.subjectsdir()),
name="fssource")
# Always overwrite the grab; shouldn't cascade unless the underlying image changes
fssource.overwrite = True
# Convert the target to nifti
convert = pe.Node(fs.MRIConvert(out_type="niigz"), name="convertbrain")
# Swap dimensions so stuff looks nice in the report
flipbrain = pe.Node(fsl.SwapDimensions(new_dims=("RL", "PA", "IS")),
name="flipbrain")
flipfunc = pe.MapNode(fsl.SwapDimensions(new_dims=("RL", "PA", "IS")),
iterfield=["in_file"],
name="flipfunc")
# Slice up the registration
func2anatpng = pe.MapNode(fsl.Slicer(middle_slices=True,
show_orientation=False,
scaling=.6,
label_slices=False),
iterfield=["in_file"],
name="func2anatpng")
# Rename some files
pngname = pe.MapNode(util.Rename(format_string="func2anat.png"),
iterfield=["in_file"],
name="pngname")
costname = pe.MapNode(util.Rename(format_string="func2anat_cost.dat"),
iterfield=["in_file"],
name="costname")
tkregname = pe.MapNode(util.Rename(format_string="func2anat_tkreg.dat"),
iterfield=["in_file"],
name="tkregname")
flirtname = pe.MapNode(util.Rename(format_string="func2anat_flirt.mat"),
iterfield=["in_file"],
name="flirtname")
# Merge the slicer png and cost file into a report list
report = pe.Node(util.Merge(2, axis="hstack"), name="report")
# Define the workflow outputs
outputnode = pe.Node(
util.IdentityInterface(fields=["tkreg_mat", "flirt_mat", "report"]),
name="outputs")
bbregister = pe.Workflow(name=name)
# Connect the registration
bbregister.connect([
(inputnode, func2anat, [("subject_id", "subject_id"),
("source_file", "source_file")]),
(inputnode, fssource, [("subject_id", "subject_id")]),
(func2anat, flipfunc, [("registered_file", "in_file")]),
(flipfunc, func2anatpng, [("out_file", "in_file")]),
(fssource, convert, [("brain", "in_file")]),
(convert, flipbrain, [("out_file", "in_file")]),
(flipbrain, func2anatpng, [("out_file", "image_edges")]),
(func2anatpng, pngname, [("out_file", "in_file")]),
(func2anat, tkregname, [("out_reg_file", "in_file")]),
(func2anat, flirtname, [("out_fsl_file", "in_file")]),
(func2anat, costname, [("min_cost_file", "in_file")]),
(costname, report, [("out_file", "in1")]),
(pngname, report, [("out_file", "in2")]),
(tkregname, outputnode, [("out_file", "tkreg_mat")]),
(flirtname, outputnode, [("out_file", "flirt_mat")]),
(report, outputnode, [("out", "report")]),
])
return bbregister
cluster_copes1.inputs.use_mm = True
#==========================================================================================================================================================
#overlay thresh_zstat1
overlay_cope1 = Node(fsl.Overlay(), name='overlay_cope1')
overlay_cope1.inputs.auto_thresh_bg = True
overlay_cope1.inputs.stat_thresh = (2.300302, 14)
overlay_cope1.inputs.transparency = True
overlay_cope1.inputs.out_file = 'rendered_thresh_zstat1.nii.gz'
overlay_cope1.inputs.show_negative_stats = True
#==========================================================================================================================================================
#generate pics thresh_zstat1
slicer_cope1 = Node(fsl.Slicer(), name='slicer_cope1')
slicer_cope1.inputs.sample_axial = 2
slicer_cope1.inputs.image_width = 2000
slicer_cope1.inputs.out_file = 'rendered_thresh_zstat1.png'
#===========================================================================================================================================================
#trasnform copes from 2nd level to template space to be ready fro 3rd level
cope1_2ndlevel_2_template = Node(ants.ApplyTransforms(),
name='cope1_2ndlevel_2_template')
cope1_2ndlevel_2_template.inputs.dimension = 3
cope1_2ndlevel_2_template.inputs.reference_image = standard_brain
cope1_2ndlevel_2_template.inputs.output_image = 'cope1_2ndlevel_2_standard_brain.nii.gz'
varcope1_2ndlevel_2_template = Node(ants.ApplyTransforms(),
name='varcope1_2ndlevel_2_template')
'in_file')
dog_preproc_wf.connect(normalize_sagittal_image_node, 'out_file',
average_images, 'in_file2')
apply_final_mask = pe.Node(interface=fsl.maths.ApplyMask(),
name='apply_final_mask')
### nuts so to do this I need to mask the image first...
dog_preproc_wf.connect(average_images, 'out_file', apply_final_mask, 'in_file')
dog_preproc_wf.connect(resample_axial_mask_isotropic, 'out_file',
apply_final_mask, 'mask_file')
#threshold_template_mask = pe.Node(interface=fsl.ImageMaths(op_string=' -thr 1.0'), name="threshold_template_mask")
slicer_midslice = pe.MapNode(interface=fsl.Slicer(),
name="slicer_midslice",
iterfield=['in_file'])
slicer_midslice.inputs.middle_slices = True
slicer_all_axial = pe.MapNode(interface=fsl.Slicer(),
name="slicer_all_axial",
iterfield=['in_file'])
slicer_all_axial.inputs.image_width = 1000
slicer_all_axial.inputs.sample_axial = 3
datasink = pe.Node(nio.DataSink(), name='datasink')
datasink.inputs.base_directory = output_dir
merge_node = pe.Node(interface=Merge(4), name='merge_node')
dog_preproc_wf.connect(normalize_axial_image_node, 'out_file', merge_node,
Overlay_t_Contrast.inputs.transparency = True #----------------------------------------------------------------------------------------------------- # In[15]: #Overlay f contrast Overlay_f_Contrast = Node(fsl.Overlay(), name = 'Overlay_f_Contrast') Overlay_f_Contrast.inputs.auto_thresh_bg = True Overlay_f_Contrast.inputs.stat_thresh = (2.300302,4.877862) Overlay_f_Contrast.inputs.transparency = True #----------------------------------------------------------------------------------------------------- # In[15]: #slicer Slicer_t_Contrast = Node(fsl.Slicer(), name = 'Generate_t_Contrast_Image') Slicer_t_Contrast.inputs.all_axial = True Slicer_t_Contrast.inputs.image_width = 750 #----------------------------------------------------------------------------------------------------- # In[15]: #slicer Slicer_f_Contrast = Node(fsl.Slicer(), name = 'Generate_f_Contrast_Image') Slicer_f_Contrast.inputs.all_axial = True Slicer_f_Contrast.inputs.image_width = 750 #----------------------------------------------------------------------------------------------------- # In[15]: #Calculate dofs of freedom for second level analysis #N.B the number of runs have to be equal for each subject dof = 150 - (len(subject_list) * len(session_list)) #No of volumes #-----------------------------------------------------------------------------------------------------
def create_realignment_workflow(name="realignment", interp_type="trilinear"):
# Define the workflow inputs
inputnode = pe.Node(util.IdentityInterface(fields=["timeseries"]),
name="inputs")
# Get the middle volume of each run for motion correction
extractref = pe.MapNode(fsl.ExtractROI(t_size=1),
iterfield=["in_file", "t_min"],
name="extractref")
# Slice the example func for reporting
exampleslice = pe.MapNode(fsl.Slicer(image_width=800, label_slices=False),
iterfield=["in_file"],
name="exampleslice")
exampleslice.inputs.sample_axial = 2
# Motion correct to middle volume of each run
mcflirt = pe.MapNode(fsl.MCFLIRT(save_plots=True,
save_rms=True,
interpolation=interp_type),
name="mcflirt",
iterfield=["in_file", "ref_file"])
report_inputs = ["realign_params", "rms_files"]
report_outputs = ["max_motion_file", "disp_plot", "rot_plot", "trans_plot"]
mcreport = pe.MapNode(util.Function(input_names=report_inputs,
output_names=report_outputs,
function=write_realign_report),
iterfield=report_inputs,
name="mcreport")
# Rename some things
exfuncname = pe.MapNode(util.Rename(format_string="example_func",
keep_ext=True),
iterfield=["in_file"],
name="exfuncname")
exslicename = pe.MapNode(util.Rename(format_string="example_func",
keep_ext=True),
iterfield=["in_file"],
name="exslicename")
parname = pe.MapNode(
util.Rename(format_string="realignment_parameters.par"),
iterfield=["in_file"],
name="parname")
# Send out all the report data as one list
mergereport = pe.Node(util.Merge(numinputs=5, axis="hstack"),
name="mergereport")
# Define the outputs
outputnode = pe.Node(util.IdentityInterface(fields=[
"timeseries", "example_func", "realign_parameters", "realign_report"
]),
name="outputs")
# Define and connect the sub workflow
realignment = pe.Workflow(name=name)
realignment.connect([
(inputnode, extractref, [("timeseries", "in_file"),
(("timeseries", get_middle_volume), "t_min")
]),
(extractref, exampleslice, [("roi_file", "in_file")]),
(inputnode, mcflirt, [("timeseries", "in_file")]),
(extractref, mcflirt, [("roi_file", "ref_file")]),
(mcflirt, mcreport, [("par_file", "realign_params"),
("rms_files", "rms_files")]),
(exampleslice, exslicename, [("out_file", "in_file")]),
(mcreport, mergereport, [("max_motion_file", "in1"),
("rot_plot", "in2"), ("disp_plot", "in3"),
("trans_plot", "in4")]),
(exslicename, mergereport, [("out_file", "in5")]),
(mcflirt, parname, [("par_file", "in_file")]),
(parname, outputnode, [("out_file", "realign_parameters")]),
(extractref, exfuncname, [("roi_file", "in_file")]),
(mcflirt, outputnode, [("out_file", "timeseries")]),
(exfuncname, outputnode, [("out_file", "example_func")]),
(mergereport, outputnode, [("out", "realign_report")]),
])
return realignment
"""
selectcontrast = pe.Node(niu.Select(), name="selectcontrast")
"""Use :class:`nipype.interfaces.fsl.Overlay` to combine the statistical output of
the contrast estimate and a background image into one volume.
"""
overlaystats = pe.Node(fsl.Overlay(), name="overlaystats")
overlaystats.inputs.stat_thresh = (3, 10)
overlaystats.inputs.show_negative_stats = True
overlaystats.inputs.auto_thresh_bg = True
"""Use :class:`nipype.interfaces.fsl.Slicer` to create images of the overlaid
statistical volumes for a report of the first-level results.
"""
slicestats = pe.Node(fsl.Slicer(), name="slicestats")
slicestats.inputs.all_axial = True
slicestats.inputs.image_width = 750
l1analysis.connect([
(modelspec, level1design, [('session_info', 'session_info')]),
(level1design, level1estimate, [('spm_mat_file', 'spm_mat_file')]),
(level1estimate, contrastestimate, [('spm_mat_file', 'spm_mat_file'),
('beta_images', 'beta_images'),
('residual_image', 'residual_image')]),
(contrastestimate, selectcontrast, [('spmT_images', 'inlist')]),
(selectcontrast, overlaystats, [('out', 'stat_image')]),
(overlaystats, slicestats, [('out_file', 'in_file')])
])
"""
Preproc + Analysis pipeline
# cortical and cerebellar white matter volumes to construct wm edge
# [lh cerebral wm, lh cerebellar wm, rh cerebral wm, rh cerebellar wm, brain stem]
wmseg = pe.Node(fs.Binarize(out_type='nii.gz',
match = [2, 7, 41, 46, 16],
binary_file='T1_brain_wmseg.nii.gz'),
name='wmseg')
# make edge from wmseg to visualize coregistration quality
edge = pe.Node(fsl.ApplyMask(args='-edge -bin',
out_file='T1_brain_wmedge.nii.gz'),
name='edge')
#visualize the segmentation
#apply smoothing
slicer = pe.Node(fsl.Slicer(sample_axial=6, image_width=750), name = 'visualize')
# connections
check_freesurfer.connect([
(infosource, fs_import, [('subject_id', 'subject_id')]),
(dirsource, fs_import, [('fs_dir', 'subjects_dir')]),
(fs_import, brainmask, [(('aparc_aseg', get_aparc_aseg), 'in_file')]),
(fs_import, head_convert, [('T1', 'in_file')]),
(fs_import, wmseg, [(('aparc_aseg', get_aparc_aseg), 'in_file')]),
(brainmask, fillholes, [('binary_file', 'in_file')]),
(fillholes, brain, [('out_file', 'mask_file')]),
(head_convert, brain, [('out_file', 'in_file')]),
(wmseg, edge, [('binary_file', 'in_file'),
('binary_file', 'mask_file')]),
(head_convert, datasink, [('out_file', 'anat_head')]),
(fillholes, datasink, [('out_file', 'brain_mask')]),