def __init__(self, sop_class_uid: str, sop_instance_uid: str,
frame_number: int, segment_number: int,
source_image: SourceImageForSegmentation) -> None:
"""
Parameters
----------
sop_class_uid: str
SOP Class UID of the referenced image object
sop_instance_uid: str
SOP Instance UID of the referenced image object
segment_number: int
number of the segment to which the refernce applies
frame_number: int
number of the frame to which the reference applies
source_image: highdicom.sr.content.SourceImageForSegmentation
source image for segmentation
"""
super().__init__()
segmentation_item = ImageContentItem(
name=CodedConcept(value='121214',
meaning='Referenced Segmentation Frame',
scheme_designator='DCM'),
referenced_sop_class_uid=sop_class_uid,
referenced_sop_instance_uid=sop_instance_uid,
referenced_frame_numbers=frame_number,
referenced_segment_numbers=segment_number,
relationship_type=RelationshipTypeValues.CONTAINS)
self.append(segmentation_item)
if not isinstance(source_image, SourceImageForSegmentation):
raise TypeError('Argument "source_image" must have type '
'SourceImageForSegmentation.')
self.append(source_image)
def __init__(
self,
sop_class_uid: str,
sop_instance_uid: str,
segment_number: int,
frame_numbers: Optional[Sequence[int]] = None,
source_images: Optional[
Sequence[SourceImageForSegmentation]] = None,
source_series: Optional[SourceSeriesForSegmentation] = None
) -> None:
"""
Parameters
----------
sop_class_uid: str
SOP Class UID of the referenced segmentation object
sop_instance_uid: str
SOP Instance UID of the referenced segmentation object
frame_numbers: Sequence[int], optional
numbers of the frames to which the reference applies
(in case a segmentation instance is referenced)
segment_number: int
number of the segment to which the refernce applies
source_images: Sequence[highdicom.sr.content.SourceImageForSegmentation], optional
source images for segmentation
source_series: highdicom.sr.content.SourceSeriesForSegmentation, optional
source series for segmentation
Note
----
Either `source_images` or `source_series` must be provided.
""" # noqa
super().__init__()
segment_item = ImageContentItem(
name=CodedConcept(value='121191',
meaning='Referenced Segment',
scheme_designator='DCM'),
referenced_sop_class_uid=sop_class_uid,
referenced_sop_instance_uid=sop_instance_uid,
referenced_frame_numbers=frame_numbers,
referenced_segment_numbers=segment_number,
relationship_type=RelationshipTypeValues.CONTAINS)
self.append(segment_item)
if source_images is not None:
for image in source_images:
if not isinstance(image, SourceImageForSegmentation):
raise TypeError(
'Items of argument "source_images" must have type '
'SourceImageForSegmentation.')
self.append(image)
elif source_series is not None:
if not isinstance(source_series, SourceSeriesForSegmentation):
raise TypeError('Argument "source_series" must have type '
'SourceSeriesForSegmentation.')
self.append(source_series)
else:
raise ValueError(
'One of the following two arguments must be provided: '
'"source_images" or "source_series".')
def test_image_item_construction_with_multiple_frame_numbers(self):
name = codes.DCM.SourceImageForSegmentation
sop_class_uid = '1.2.840.10008.5.1.4.1.1.2.2'
sop_instance_uid = '1.2.3.4'
frame_numbers = [1, 2, 3]
i = ImageContentItem(name=name,
referenced_sop_class_uid=sop_class_uid,
referenced_sop_instance_uid=sop_instance_uid,
referenced_frame_numbers=frame_numbers)
ref_sop_item = i.ReferencedSOPSequence[0]
assert ref_sop_item.ReferencedSOPClassUID == sop_class_uid
assert ref_sop_item.ReferencedSOPInstanceUID == sop_instance_uid
assert ref_sop_item.ReferencedFrameNumber == frame_numbers
with pytest.raises(AttributeError):
ref_sop_item.ReferencedSegmentNumber
def test_image_item_construction_single_segment_number(self):
name = codes.DCM.SourceImageForSegmentation
sop_class_uid = '1.2.840.10008.5.1.4.1.1.66.4'
sop_instance_uid = '1.2.3.4'
segment_number = 1
i = ImageContentItem(name=name,
referenced_sop_class_uid=sop_class_uid,
referenced_sop_instance_uid=sop_instance_uid,
referenced_segment_numbers=segment_number)
ref_sop_item = i.ReferencedSOPSequence[0]
assert ref_sop_item.ReferencedSOPClassUID == sop_class_uid
assert ref_sop_item.ReferencedSOPInstanceUID == sop_instance_uid
assert ref_sop_item.ReferencedSegmentNumber == segment_number
with pytest.raises(AttributeError):
ref_sop_item.ReferencedFrameNumber
def test_image_item_construction(self):
name = codes.DCM.SourceImageForSegmentation
sop_class_uid = '1.2.840.10008.5.1.4.1.1.2'
sop_instance_uid = '1.2.3.4'
i = ImageContentItem(
name=name,
referenced_sop_class_uid=sop_class_uid,
referenced_sop_instance_uid=sop_instance_uid,
)
assert i.ValueType == 'IMAGE'
assert i.ConceptNameCodeSequence[0] == name
ref_sop_item = i.ReferencedSOPSequence[0]
assert ref_sop_item.ReferencedSOPClassUID == sop_class_uid
assert ref_sop_item.ReferencedSOPInstanceUID == sop_instance_uid
with pytest.raises(AttributeError):
ref_sop_item.ReferencedFrameNumber
with pytest.raises(AttributeError):
ref_sop_item.ReferencedSegmentNumber