Operating system: Windows 10, 64bit Slicer version: 4.8.1 Expected behavior: load multiframe image data as (labeled) volume data (dose distribution and VOI) Actual behavior: In the DICOM browser under advanced tab shows by examining that it is a Scalar Volume, and it warns that “Multi frame imag…

[image] lassoan: multiple volumes have the same series instance UID, but it is interesting that both this data set and most likely the Mirada Simplicity generated data set suffers from the same issue. @Sandor_Konya did you do anything with those files prior to loading into Slicer? Did you app…

[image] lassoan: For me it seems to be a violation of he DICOM standard that multiple volumes have the same series instance UID, but it is interesting that both this data set and most likely the Mirada Simplicity generated data set suffers from the same issue. [image] fedorov: Assignment …

[image] lassoan: I also know that the MF parser in ITK (at least the one that is based on DCMTK) doesn’t have a function to sort individual frames of a MF instance geometrically @thewtex Do you know if this is this still the case? Even with the GDCM-based reader? Do you know about any other l…

@thewtex Thanks for the information, this all sounds promising. Unfortunately, even clinical device manufacturers misuse the DICOM standard in every possible way, so consistency checks are necessary for safety-critical applications. Performance of course is important, too - maybe that can be address…

@dzenanz can you tell us if the reader sorts the individual frames of a multiframe object geometrically, since you worked on that part recently? I can’t think of a use case when it makes sense to not sort image slices geometrically while reconstructing the volume. What is the alternative - to keep …

[image] fedorov: I can’t think of a use case when it makes sense to not sort image slices geometrically while reconstructing the volume. What is the alternative - to keep the fingers crossed? I’ll note that the issue of non-geometrically sorted frames in a multiframe document comes up for dat…

[image] pieper: I suspect the reason sorting isn’t usually needed is that modalities would typically output sorted frames. I just don’t know how accurate that statement is. Following the same reasoning, one might not sort geometrically non-multiframe series and instead rely on InstanceNumber …

I also think it is time to split this topic - I am afraid we veered off the topic and might have lost the user and the actual problem they wanted to get resolved.

@fedorov I didn’t suggest not sorting frames, just explaining why the issue probably hasn’t come up much in practice. In my (admittedly very limited) experience I’ve only ever seen non-sorted frames come from converters.

I agree. In my (even more limited) experience, I have never encountered multi-frame series produced by the clinical applications I worked with. I think it is hard to get a grasp of how important it is with very limited adoption of multiframe by modalities. Also, it is not clear if sorting is disabl…

Error importing multi frame image exported from Simplicit90Y (Mirada)

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Error importing multi frame image exported from Simplicit90Y (Mirada)

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