[HeyLaughingBoy]

A possibly better solution would be to establish a standard for shoe measurements in 3D space, that could then be compared to a 3D image of the foot (taken with visible light). Cameras and computers are cheap these days.

Solves the fit problem quickly and avoids any X-Ray exposure.

[lupusreal]

Maybe.. but feet deform when standing in shoes and being able to see that effect seems very helpful.