New diagnostic imaging technologies have borne unusual scrutiny in con
siderations of health care cost containment. This scrutiny derives fro
m a history of relatively poor technology assessment, questions about
the extent to which technologic innovations promulgate improvements in
patients' health, and observations that economic concerns often take
precedence over medical ones in technology acquisition decisions. Curr
ent and future legislative and market-driven health care reform initia
tives will require providers thinking of acquiring new imaging technol
ogies to assess their costs and benefits more rigorously.