What is the purpose of computer aided diagnosis (CAD)?
CAD is used for automatic detection and characterization (i.e., diagnosis) of lesions of interest on image datasets. Typically, CAD is used to improve the diagnostic accuracy and efficiency of image interpretation by a radiologist or nuclear medicine physician. For example, CAD can be used to aid in the detection and characterization of lung nodules on chest CT, of colon polyps and masses on virtual CT colonoscopy, and of breast cancers on mammography.