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这是在脉冲回声技术基础上发展起来的一种新扫描原理。其基本原理是使声脉冲的反射显示为严格按体内反射物位置的光点(虚象),这就是所谓反射结构的真实空间显示。基于此原理研制了一种实时扫描器,经临床试验证实,该实时真实空间扫描器所获得的实时图象与人体内器官的实际情况非常接近。试验表明采用调制光发射二极管可获得具有八个灰度级和有良好分辨率的实时图象。引言超声扫描技术的发展经历了几个阶段,
This is a new scanning principle developed on the basis of pulse echo technology. Its basic principle is to make the sound pulse reflection appear as the light spot (virtual image) strictly according to the position of the internal reflector, which is the real spatial display of the so-called reflection structure. Based on this principle, a real-time scanner has been developed and confirmed by clinical trials that the real-time image obtained by the real-time real-space scanner is very close to the actual situation of human organs. Experiments have shown that real-time images with eight gray levels and good resolution can be obtained with modulated light emitting diodes. Introduction Ultrasound scanning technology has undergone several stages of development,