CAD provides value in spotting difficult 'flat' colonic lesions

May 1, 2008 Diagnostic Imaging. CAD provides value in spotting difficult 'flat' colonic lesions Ability of sensitivity and filter settings to increase likelihood of finding subtle cancer must be balanced against greater number of false positives John C. Hayes -------------------------------------------------------------------------------- Computer-aided detection may have a role in helping radiologists spot hard-to-find flat lesions on CT colonography, according to a pair of studies presented in March at the European Congress of Radiology. One retrospective study, based on a Japanese cohort, found that a Medicsight CAD system had a sensitivity of 84.6% when tested on 26 known nonpolypoid early-stage cancers. Another retrospective study, based on 208 cases, found that a prototype Siemens CAD system had a 93%-plus sensitivity for flat lesions.

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