3D visualization techniques are commonly employed in radiation treatment planning (RTP).
These are powerful tools, and create very pretty pictures. But a false sense of security exists because the pictures look so much like the reality we THINK they accurately represent. Visualizations can actually be very misleading, taking extreme liberties with the data, as the visualization community is well aware. They can supress information about the original data quality, add or lose information, and different visualizations of the same data can disagree.