公开(公告)号：US5501222A

公开(公告)日：1996-03-26

申请号：US242536

申请日：1994-05-13

申请人： Keith A. Briggs

发明人： Keith A. Briggs

IPC分类号： G01S7/52 ,  G01S15/89 ,  A61B8/00

CPC分类号： G01S15/894 ,  G01S15/8977 ,  G01S15/8993 ,  G01S7/52031

摘要： A transmitter transmits ultrasound signals towards a region to be imaged. The reflected ultrasound signals from the region are detected by a receiver. The transmitter and/or receiver is or are moved relative to the region to create Doppler phase shift. The time compression/expansion caused by the Doppler phase shift is dewarped by filtering in order to recover the amplitudes of the ultrasound signals reflected from different portions of the region for imaging.

摘要翻译： 发射机向待成像的区域发送超声信号。 来自该区域的反射超声信号由接收器检测。 发射机和/或接收机相对于该区域移动或者被移动以产生多普勒相移。 由多普勒相位引起的时间压缩/扩张被滤波所消除，以便恢复从用于成像的区域的不同部分反射的超声波信号的振幅。