日本松下公司的研究所与爱媛大学医疗系的一个小组协作,已成功地研制出一种新的超声诊断系统,其分辨率可达0.1mm。这种新的回波断层仪是1987年4月在横滨市举行的日本皮肤科医生第86次会议上被介绍的。迄今为止,皮肤病的诊断还在使用有创伤方法,例如切割,无法从外部有效地诊断像皮肤癌这样的疾病。这种新的超声诊断仪发射一个25MHz和40MHz(切换)超声脉冲,能测量3mm到7mm的深度,在40MHz时的视野为12mm× In collaboration with a team of Ehime University’s medical departments, the Matsushita Institute of Japan has successfully developed a new ultrasonic diagnostic system with a resolution of 0.1 mm. The new echograph was introduced at the 86th meeting of Japanese dermatologists held in April 1987 in Yokohama. Hitherto, the diagnosis of dermatosis is still using traumatic methods, such as cutting, which can not effectively diagnose diseases like skin cancer from the outside. This new ultrasonic diagnostic unit emits a 25 MHz and 40 MHz (switched) ultrasound pulse measuring 3 mm to 7 mm depth with a field of view of 12 mm at 40 MHz