Support combining multiple series for DICOMweb about wsidicom

[erikogabrielsson]

Allowing loading multiple series sounds good. Im not so sure about multiple studies. Is there a use-case for that? It will make patient and study level metadata for the wsi much more complicated.

Note that WsiDicomFileSource considers instances to be part of the pyramid if they have same study, series, and frame of reference uid. This is to strict, it should be enough that the frame of reference matches*. So if you implement this, please add a check that the obtained instances have the same frame of reference.

• Ideally we should also check that the TotalPixelMatrixOriginSequence is the same, as there might be multiple pyramids on the same slide (i.e. frame of reference). It might also be worth implementing support for multiple pyramids.

[psavery]

Allowing loading multiple series sounds good. Im not so sure about multiple studies. Is there a use-case for that? It will make patient and study level metadata for the wsi much more complicated.

No, I don't actually have an example that requires multiple studies, just multiple series, so we can go with that!

Note that WsiDicomFileSource considers instances to be part of the pyramid if they have same study, series, and frame of reference uid. This is to strict, it should be enough that the frame of reference matches*. So if you implement this, please add a check that the obtained instances have the same frame of reference.

Sounds good.

• Ideally we should also check that the TotalPixelMatrixOriginSequence is the same, as there might be multiple pyramids on the same slide (i.e. frame of reference). It might also be worth implementing support for multiple pyramids.

Sounds good also!