Why does my XA type image appear as a series and not a single 2D image?

Thank you. This series is created by a Siemens Axiom Artis robotic C-arm that can reconstruct cone-beam CT from rotational XA acquisitions. The series contains is a reconstructed 3D volume and a localizer image.

Presence of the localizer image messes up default loading, so for now you need to open “Advanced” section and chose the two loadables by imageType. One of them is the localizer image, the other one is the volume:

Loaded 3D volume:

I’ve implemented a mechanism in the DICOM module to detect such localizer images and load the volume correctly with default settings. It is currently under review and probably will be available in the Slicer Preview Release within a few days.