Steve Pieper

> After looking at OHIF, every patIDs(cf problematic cases) nnunet seg objects is correctly rendered except PCAMPMRI-0013-T2 **if we use dcm2niix instead of sitk.** Can you parse this a bit...

Thank you @ccosmin97 that clarifies things 👍 Since we have full control over this use case, I would suggest copying the ImageOrientationPatient header values from the inputs to the output...

@GitanjaliChhetri Can you detect the situation that leads to the issue with the sliceNormal? It sounds like the problem is that the vectors are parallel leading to a degenerate view,...

@Punzo I still would like to confirm that there's not a fix in ohif that is more robust than just fuzzing the vector and does not require a full update...

Thank you for investigating @GitanjaliChhetri . One other question: have you determined what is different about this particular scan that makes the sagittal view fail while other scans do not?...

Interesting - that looks like rounding error to me (maybe the scans were converted from nifti, with the 32-bit float header issue). Since the diagonal elements are 1 it's not...

Great, thanks for digging in more! What method did you use to orthogonalize? That IOP looks like a valid rotation and the question is if the third vector of the...

It looks to me like the method is doing the correct thing by preserving the pure rotation and possible flip while removing any other parts. The rest of the MPR...

**Summary of discussion on Radiomics hangout** * Use the [NSCLC-Radiomics example data from TCIA](https://wiki.cancerimagingarchive.net/display/Public/NSCLC-Radiomics) - DICOM CT and RTSTRUCT - Able to be redistributed as basis for examples and reproducibility...

[SlicerRT already provides a converter script](https://subversion.assembla.com/svn/slicerrt/trunk/SlicerRt/src/BatchProcessing/) which should ba able to do the structure set conversion.