Hi
Look at the Java3D section, I remember that several developers (proudly :D) posted screen captures of their medical applications. I remind that Java3D 1.6 uses JOGL 2 for its rendering.
Edit.: Look at this one for example:
http://forum.jogamp.org/YaDiV-A-Software-for-Medical-Visualization-using-Java3D-td4030802.html