When I import them to DCM4CHEE's Archive, a Study is created with 6 DICOM objects, 3 of them with pixel data, 3 of them without pixel data:

When I make a C-GET for the Study using dcm4che from Java, the onDimseRQ method of my BasicCStoreSCP class is invoked 6 times (so for each DICOM object) and 3 of these DICOM objects I can convert and save as JPEG (the same 3 pictures that I can open from DCM4CHEE's GUI too).
However, if I open the Study for example with Weasis, I see 35+27+27 images:

Can someone please explain it to me why it looks like that, how MR works? (I have another MR Study to test with, but for that I see the same amount of images (61) on DCM4CHEE's Archive and in a Viewer.)