According to the email from Mike Nessen that recon sent me ...
The images sent to the FDA were 2D not 3D because the device they are comparing the DViS too is "a c-arm, which is 2D Fluoroscopy"
Of course, I have been reprimanded for worrying about images from an imaging device company trying to justify a multi-hundred million dollar market cap without showing any images. Apparently, this means I haven't done my homework and should sell my shares and shut up.