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fix(dicom): load images with NumberOfFrames == 1 #745

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Merged
floryst merged 1 commit into from
May 23, 2025
Merged

fix(dicom): load images with NumberOfFrames == 1 #745

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12 changes: 7 additions & 5 deletions src/utils/allocateImageFromChunks.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@ import vtkImageData from '@kitware/vtk.js/Common/DataModel/ImageData';
import { Vector3 } from '@kitware/vtk.js/types';
import { mat3, vec3 } from 'gl-matrix';
import vtkDataArray from '@kitware/vtk.js/Common/Core/DataArray';
import { vtkWarningMacro } from '@kitware/vtk.js/macros';

const ImagePositionPatientTag = NAME_TO_TAG.get('ImagePositionPatient')!;
const ImageOrientationPatientTag = NAME_TO_TAG.get('ImageOrientationPatient')!;
Expand Down Expand Up @@ -90,10 +89,13 @@ export function allocateImageFromChunks(sortedChunks: Chunk[]) {
? Number(meta.get(NumberOfFrames))
: null;

// If we have NumberOfFrames, chances are it's a multi-frame DICOM.
if (numberOfFrames !== null && sortedChunks.length > 1) {
vtkWarningMacro(
'Found a multi-frame chunk in a group of chunks of size > 1'
if (
numberOfFrames !== null &&
numberOfFrames > 1 &&
sortedChunks.length > 1
) {
throw new Error(
'First chunk in a group of chunks (size > 1) is a multi-frame chunk'
);
}

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