作者: Nobuo Yamazaki
DOI: 10.1121/1.417285
关键词: Optics 、 Doppler effect 、 Signal 、 Gradation 、 Physics 、 Frequency band 、 Blanking 、 Color image 、 Ultrasonic sensor 、 Pulse repetition frequency
摘要: A diagnostic ultrasound system is provided for displaying a color image of motion tissue scans an ultrasonic pulse signal along tomographic plane to acquire electrical echo signal, extracts Doppler from the calculates velocity data concerning respective sample points on basis and forms B-mode signal. The comprises element setting scale which each over measurable band frequencies assigned gradation display, being limited by repetition frequency given low-velocity enhanced in than remaining band, converting into according scale, blanking either one converted calculated at every point when them exceeds specified threshold, subjected superimposed image.