This article reviews the available information on digital mammography for s
urgeons who care for patients with breast cancer. The limitations of the cu
rrent film-based technology and why digital mammography promises to improve
breast cancer detection and breast lesion diagnosis are described. The bas
ics of digital imaging technology are reviewed, including a description of
image contrast and spatial resolution and its variance from currently avail
able clinical digital mammography systems. The results of clinical trials c
ompleted to date are reported. An upcoming large screening trial for digita
l mammography, sponsored by the National Cancer Institute, is described. Fu
ture technological developments, including improvements in softcopy display
, image processing, computer-aided detection and diagnosis (CADD), tomosynt
hesis, and digital subtraction mammography (DSM), are briefly discussed. (C
) 2001 Wiley-Liss, Inc.