Scan Racer is a racing game that uses a CT slice image as a race track. The player needs to avoid obstacles and scores for following the edge contour closely. This game was created by Jessica Diehm, Robert Hermann, Tobias Pertlwieser and Wei-Cheng Lai at FAU Erlangen-Nuremberg. If you want to expand on this idea, we would be happy to share the sources.
The APK file for installation on an Android system can be downloaded here. Enjoy a teaser to the concept and some in-game videos here: