title: Computed tomographic mammography (CTM).
abstract: Breasts of 724 patients were studied by physical examination, mammography, and computed tomographic mammography (CTM) using a scanner designed for evaluation of the breast. Among cases in which CTM was not accompanied by use of contrast material, there were 60 malignant lesions, of which 10% were missed by mammography, 32% by CTM, and 8% by both. Among cases where CTM was supplemented by a 50 ml injection of 75% contrast material, there were 63 malignant lesions, of which 14% were missed by mammography, 16% by CTM, and 3% by both. Among cases where CTM was supplemented by a 300 ml infusion of 30% contrast material, there were 41 malignant lesions, of which 7% were missed by mammography and 5% by CTM, but none by both. Clinically, 22% of the malignant lesions in the infusion series were occult. There were 44 benign lesions in patients studied with the infusion technique. With mammography 68% were suspicious for malignancy, and with CTM, 56%.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D001943:Breast Neoplasms / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005069:Evaluation Studies as Topic; D005260:Female; D005348:Fibrocystic Breast Disease / Q000000981:diagnostic imaging; D006801:Humans; D008327:Mammography; D008875:Middle Aged; D010212:Papilloma / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014984:Xeromammography