There' s ton's of literature out there and a crowd in Switzerland seem to be owning the show at the moment with their Virtopsy project.
thanks google: Results 1 - 10 of about 7,430 for virtopsy. (0.41 seconds) :)

Another idea is to use Dual Source Dual Energy CT, this is effeectively taking two registered sets of scans at different radiation doses and doing maths on the pixel value to tweak what you can see (I think they do this prior to reconstruction.) It's nice how the lungs stand out with more contrast than the bone.
this image on the right is an exaple of this technology.
Advances of dual source, dual-energy imaging in postmortem CT by
Anders Persson , Christian Jackowski, Elias Engstr, Helene Zachrisson-
