The new GE Invenia ABUS import plugin is in Slicer now. Using Slicer Preview Release of tomorrow you can load the ABUS image by double-clicking on the series.
Scan conversion is applied by placing the volume under a non-linear transform. This allows quick loading, visualization, segmentation, etc. but some operations, such as volume rendering are not supported for non-linearly transformed volumes, so probably the best is to harden the transform the volume (right-click in the transform column in Data module).
I could not verify image directions (if the image is not mirrored along one axis), so it would be great if you could check this by comparing this to 3D views shown in the GE review workstation (you cannot tell if the image is flipped from 2D views, as you are free to flip the image in 2D views):
