def load(self, interrupt_flag, progress_callback):
"""
:param interrupt_flag: A threading.Event() object that tells the function to stop loading.
:param progress_callback: A signal that receives the current progress of the loading.
:return: PatientDictContainer object containing all values related to the loaded DICOM files.
"""
progress_callback.emit(("Creating datasets...", 0))
try:
path = os.path.dirname(os.path.commonprefix(self.selected_files)) # Gets the common root folder.
read_data_dict, file_names_dict = ImageLoading.get_datasets(self.selected_files)
except ImageLoading.NotAllowedClassError:
raise ImageLoading.NotAllowedClassError
# Populate the initial values in the PatientDictContainer singleton.
patient_dict_container = PatientDictContainer()
patient_dict_container.clear()
patient_dict_container.set_initial_values(path, read_data_dict, file_names_dict)
# As there is no way to interrupt a QRunnable, this method must check after every step whether or not the
# interrupt flag has been set, in which case it will interrupt this method after the currently processing
# function has finished running. It's not very pretty, and the thread will still run some functions for, in some
# cases, up to a couple seconds after the close button on the Progress Window has been clicked, however it's
# the best solution I could come up with. If you have a cleaner alternative, please make your contribution.
if interrupt_flag.is_set():
print("stopped")
return False
if 'rtss' in file_names_dict and 'rtdose' in file_names_dict:
self.parent_window.signal_advise_calc_dvh.connect(self.update_calc_dvh)
self.signal_request_calc_dvh.emit()
while not self.advised_calc_dvh:
pass
if 'rtss' in file_names_dict:
dataset_rtss = dcmread(file_names_dict['rtss'])
progress_callback.emit(("Getting ROI info...", 10))
rois = ImageLoading.get_roi_info(dataset_rtss)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Getting contour data...", 30))
dict_raw_contour_data, dict_numpoints = ImageLoading.get_raw_contour_data(dataset_rtss)
# Determine which ROIs are one slice thick
dict_thickness = ImageLoading.get_thickness_dict(dataset_rtss, read_data_dict)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Getting pixel LUTs...", 50))
dict_pixluts = ImageLoading.get_pixluts(read_data_dict)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
# Add RTSS values to PatientDictContainer
patient_dict_container.set("rois", rois)
patient_dict_container.set("raw_contour", dict_raw_contour_data)
patient_dict_container.set("num_points", dict_numpoints)
patient_dict_container.set("pixluts", dict_pixluts)
if 'rtdose' in file_names_dict and self.calc_dvh:
dataset_rtdose = dcmread(file_names_dict['rtdose'])
# Spawn-based platforms (i.e Windows and MacOS) have a large overhead when creating a new process, which
# ends up making multiprocessing on these platforms more expensive than linear calculation. As such,
# multiprocessing is only available on Linux until a better solution is found.
fork_safe_platforms = ['Linux']
if platform.system() in fork_safe_platforms:
progress_callback.emit(("Calculating DVHs...", 60))
raw_dvh = ImageLoading.multi_calc_dvh(dataset_rtss, dataset_rtdose, rois, dict_thickness)
else:
progress_callback.emit(("Calculating DVHs... (This may take a while)", 60))
raw_dvh = ImageLoading.calc_dvhs(dataset_rtss, dataset_rtdose, rois, dict_thickness, interrupt_flag)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Converging to zero...", 80))
dvh_x_y = ImageLoading.converge_to_0_dvh(raw_dvh)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
# Add DVH values to PatientDictContainer
patient_dict_container.set("raw_dvh", raw_dvh)
patient_dict_container.set("dvh_x_y", dvh_x_y)
patient_dict_container.set("dvh_outdated", False)
return True
else:
return True
return True
def load(self, interrupt_flag, progress_callback):
"""
:param interrupt_flag: A threading.Event() object that tells the
function to stop loading.
:param progress_callback: A signal that receives the current
progress of the loading.
:return: PatientDictContainer object containing all values related
to the loaded DICOM files.
"""
progress_callback.emit(("Creating datasets...", 0))
try:
# Gets the common root folder.
path = os.path.dirname(os.path.commonprefix(self.selected_files))
read_data_dict, file_names_dict = ImageLoading.get_datasets(
self.selected_files)
except ImageLoading.NotAllowedClassError:
raise ImageLoading.NotAllowedClassError
# Populate the initial values in the PatientDictContainer singleton.
moving_dict_container = MovingDictContainer()
moving_dict_container.clear()
moving_dict_container.set_initial_values(
path,
read_data_dict,
file_names_dict,
existing_rtss_files=self.existing_rtss)
if interrupt_flag.is_set():
print("stopped")
return False
if 'rtss' in file_names_dict and 'rtdose' in file_names_dict:
self.parent_window.signal_advise_calc_dvh.connect(
self.update_calc_dvh)
self.signal_request_calc_dvh.emit()
while not self.advised_calc_dvh:
pass
if 'rtss' in file_names_dict:
dataset_rtss = dcmread(file_names_dict['rtss'])
progress_callback.emit(("Getting ROI info...", 10))
rois = ImageLoading.get_roi_info(dataset_rtss)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Getting contour data...", 30))
dict_raw_contour_data, dict_numpoints = \
ImageLoading.get_raw_contour_data(dataset_rtss)
# Determine which ROIs are one slice thick
dict_thickness = ImageLoading.get_thickness_dict(
dataset_rtss, read_data_dict)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Getting pixel LUTs...", 50))
dict_pixluts = ImageLoading.get_pixluts(read_data_dict)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
# Add RTSS values to MovingDictContainer
moving_dict_container.set("rois", rois)
moving_dict_container.set("raw_contour", dict_raw_contour_data)
moving_dict_container.set("num_points", dict_numpoints)
moving_dict_container.set("pixluts", dict_pixluts)
if 'rtdose' in file_names_dict and self.calc_dvh:
dataset_rtdose = dcmread(file_names_dict['rtdose'])
# Spawn-based platforms (i.e Windows and MacOS) have a large
# overhead when creating a new process, which ends up making
# multiprocessing on these platforms more expensive than linear
# calculation. As such, multiprocessing is only available on
# Linux until a better solution is found.
fork_safe_platforms = ['Linux']
if platform.system() in fork_safe_platforms:
progress_callback.emit(("Calculating DVHs...", 60))
raw_dvh = ImageLoading.multi_calc_dvh(
dataset_rtss, dataset_rtdose, rois, dict_thickness)
else:
progress_callback.emit(
("Calculating DVHs... (This may take a while)", 60))
raw_dvh = ImageLoading.calc_dvhs(dataset_rtss,
dataset_rtdose, rois,
dict_thickness,
interrupt_flag)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
progress_callback.emit(("Converging to zero...", 80))
dvh_x_y = ImageLoading.converge_to_0_dvh(raw_dvh)
if interrupt_flag.is_set(): # Stop loading.
print("stopped")
return False
# Add DVH values to MovingDictContainer
moving_dict_container.set("raw_dvh", raw_dvh)
moving_dict_container.set("dvh_x_y", dvh_x_y)
moving_dict_container.set("dvh_outdated", False)
create_moving_model()
else:
create_moving_model()
self.load_temp_rtss(path, progress_callback, interrupt_flag)
progress_callback.emit(("Loading Moving Model", 85))
if interrupt_flag.is_set(): # Stop loading.
progress_callback.emit(("Stopping", 85))
return False
return True
def start(self):
"""
Goes through the steps of the DVH2CSV conversion.
:return: True if successful, False if not.
"""
# Stop loading
if self.interrupt_flag.is_set():
self.patient_dict_container.clear()
self.summary = "INTERRUPT"
return False
if not self.ready:
self.summary = "SKIP"
return False
# Check if the dataset is complete
self.progress_callback.emit(("Checking dataset...", 40))
# Attempt to get DVH data from RT Dose
self.progress_callback.emit(
("Attempting to get DVH from RTDOSE...", 50))
# Get DVH data
raw_dvh = CalculateDVHs.rtdose2dvh()
# If there is DVH data
dvh_outdated = True
if bool(raw_dvh):
incomplete = raw_dvh["diff"]
raw_dvh.pop("diff")
if not incomplete:
dvh_outdated = False
self.progress_callback.emit(("DVH data in RT Dose.", 80))
else:
raw_dvh.pop("diff")
if dvh_outdated:
# Calculate DVH if not in RT Dose
self.progress_callback.emit(("Calculating DVH...", 60))
read_data_dict = self.patient_dict_container.dataset
dataset_rtss = self.patient_dict_container.dataset['rtss']
dataset_rtdose = self.patient_dict_container.dataset['rtdose']
rois = self.patient_dict_container.get("rois")
try:
dict_thickness = \
ImageLoading.get_thickness_dict(dataset_rtss,
read_data_dict)
raw_dvh = ImageLoading.calc_dvhs(dataset_rtss, dataset_rtdose,
rois, dict_thickness,
self.interrupt_flag)
except TypeError:
self.summary = "DVH_TYPE_ERROR"
return False
# Stop loading
if self.interrupt_flag.is_set():
self.patient_dict_container.clear()
self.summary = "INTERRUPT"
return False
# Export DVH to CSV
self.progress_callback.emit(("Exporting DVH to CSV...", 90))
# Get path to save to
path = self.output_path + '/CSV/'
# Get patient ID
patient_id = self.patient_dict_container.dataset['rtss'].PatientID
# Make CSV directory if it doesn't exist
if not os.path.isdir(path):
os.mkdir(path)
# Save the DVH to a CSV file
self.progress_callback.emit(("Exporting DVH to RT Dose...", 95))
self.dvh2csv(raw_dvh, path, self.filename, patient_id)
# Save the DVH to the RT Dose
CalculateDVHs.dvh2rtdose(raw_dvh)
return True