Deus Technologies, Rockville, Md, offers the RapidScreen RS2000, a computer-aided detection system that digitizes and analyzes chest x-rays to identify regions of interest that may have features associated with early-stage lung cancer. The system uses image processing software that analyzes digitized images of existing PA or AP chest radiographs utilizing image enhancement and pattern recognition techniques to locate suspicious areas that may warrant a second review by a radiologist. (301) 424-1424;