Nonphotorealistic rendering of medical volume data
Author(s): Feng Dong, Gordon J. Clapworthy, Hai Lin, Meleagros A. Krokos.
Article: IEEE Computer Graphics and Applications, pp. 44--52, July/August,
2003.
[BibTeX] 
Abstract:
Nonphotorealistic rendering, which produces
images in the manner of traditional
styles such as painting or drawing, is proving to be a
useful alternative to conventional volume or surface
rendering in medical visualization. Typically, such illustrations
use simple lines to demonstrate
medical shapes and features,
omitting a great deal of detail. They
frequently highlight the most relevant
information better than glossy,
colored images. Medical illustration
has long regarded pen and ink as an
important medium. Thus, because
medical professionals are familiar
with pen-and-ink illustrations, they
could readily accept them as an
alternative to conventional rendering
of medical images.