RESEARCH ON IMAGE DISTORTION AND CORRECTIVE METHODS OF PHASED ARRAY B- MODE ULTRASOUND DIAGNOSIS SYSTEM

摘要

Image geometry distortion is an important technical standard in B-mode ultra-sound diagnosis system.This paper investigates the cause of image distortion inphased array B-mode ultrasound diagnosis system.The first distortion cause is thedelay error of compound wave bind.Phased array ultrasound tranducer is composedof many rectangle units.With controlling inspiring plus time,ultrasound