[Bug] Segmentation Misalignment in Multiframe DICOM

[kelliecsw]

Describe the Bug

When viewing DICOM-SEG files in OHIF, the segmentation appears misaligned. Specifically, the segmentation is offset by 14 frames. For example, segmentation that should start on frame 62 instead starts on frame 76, with all subsequent segmentations similarly shifted by 14 frames.

I am using OHIF version 3.8.2, which is the latest version capable of viewing multiframe DICOMs. OHIF version 3.9 fails to open multiframe DICOMs altogether, making it currently unusable for this purpose.

Steps to Reproduce

Open a multiframe DICOM and its associated DICOM-SEG file in OHIF (version 3.8.2).

The current behavior

Segmentation starts 14 frames later than expected.
Adjusting the ReferencedFrameNumber in the DICOM-SEG file does not resolve the issue.
The issue persists even when using different DICOM-SEG files.

The expected behavior

Segmentation should align correctly with the frames as defined by the ReferencedFrameNumber in the DICOM-SEG file.

OS

ubuntu 22.04

Node version

20.18.1

Browser

Chrome 130.0.6723.116