高田 悦雄, 伊藤 勇, 福島 祐一, 森久保 寛, 土舘 松三, 信田 重光

Etsuo TAKADA, Isamu ITO, Yuichi FUKUSHIMA, Hiroshi MORIKUBO, Matsuzo TSUCHIDATE, Shigemitsu SHIDA

獨協医科大学外科

Department of Surgery, Dokkyo University, School of Medicine

キーワード : Ultrasound, Breast, Mass screening, Rapid viewing

Ultrasonic mass screening for breast cancer has become a common practice. However to examine many ultrasonic tomograms individually would take a significant amount of time. Development of the optical disc recorder made it easy to record diagnostic images such as ultrasonograms. So researchers began using optical discs for shortening time for diagnosis. Software for the optical disc recorder was developed by researchers to record and display ultrasonic images. A microcomputer triggers System 1 to scan and moves the transducer in a cranial to caudal direction. Immediately after each transverse scan is completed, the tomogram is recorded on the optical disc. In this way, serial tomograms of each breast are stored on an optical disc. 'Rapid viewing’ is feasible with this system. The display speed and the number of repeats can be changed at the time of display, but not at recording. The image quality is better than rapid viewing by VTR. The equipment used included the optical disc recorder TQ-2600F (Matsushita), System 1 (Siemens-Asahi) and PC-9801 VM (NEC). The cubic structure of the tumor or breast is well imagined by rapid viewing.