Abstract
Because breast echography by water-coupling approaches such as the water-tank immersion technique and the water-bag technique is non-invasive, non-time consuming and has no irradiation hazard like mammography and also has appreciable high diagnostic accuracy, approximately 85ー90% in average, it has been widely used in the field of clinical diagnosis of breast cancer. In this communication, clinical applicability, of ordinary, commonly available gray-scale ultrasonic equipment with a non-focused transducer with 5 MHz frequency is used to diagnose breast cancer. Special emphases are focused upon the technique of performing the manual contact scanning, the feasibility of diagnostic criteria currently used and the demonstration of typical echograms recorded by this technique.
