Echo particle image velocimetry technique and its applications  

作　　者：ZHENG Hairong 

机构地区：[1]Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518067 [2]Key Laboratory of Biomedical Informatics and Health Engineering, Chinese Academy of Sciences Shenzhen 518055

出　　处：《Chinese Journal of Acoustics》2011年第2期162-170,共9页声学学报（英文版）

基　　金：supported by the National Basic Research Program 973(2010CB732604,2010CB732605, 2010CB534914) of Ministry of Science and Technology,China;the National Natural Science Foundation of China (11002152,81027006,61020106008,10904094,10904095,61002001);the 2010-Guangdong Innovational Research Team Program,the China Postdoctoral Science grants(20090450586);Guangdong Science Foundation grants (9478922035-X003032),and Shenzhen Basic Research Program.

摘　　要：Developments of many cardiovascular problems have been shown to have a close relationship with arterial flow conditions.However,current ultrasound/Doppler imaging techniques cannot resolve the complex nature of arterial blood flow.We have recently developed a novel contrast-based echo particle imaging technique（Echo PIV） without angel dependence for non-invasively measuring multi-component flow vectors.This study introduces the Echo PIV principles,system characterization and utility examination to characterize hemodynamics in pipe laminar flow and rotating flow.Echo PIV measurement results show its capability to resolve the complex hemodynamics including proximal flow velocity vectors,and velocity mapping. The Echo PIV method provides an easy,direct and accurate means of quantitatively yet non-invasively characterizing the complex vascular hemodynamics.Developments of many cardiovascular problems have been shown to have a close relationship with arterial flow conditions.However,current ultrasound/Doppler imaging techniques cannot resolve the complex nature of arterial blood flow.We have recently developed a novel contrast-based echo particle imaging technique（Echo PIV） without angel dependence for non-invasively measuring multi-component flow vectors.This study introduces the Echo PIV principles,system characterization and utility examination to characterize hemodynamics in pipe laminar flow and rotating flow.Echo PIV measurement results show its capability to resolve the complex hemodynamics including proximal flow velocity vectors,and velocity mapping. The Echo PIV method provides an easy,direct and accurate means of quantitatively yet non-invasively characterizing the complex vascular hemodynamics.

分 类 号：Q66[生物学—生物物理学] U661.71[交通运输工程—船舶及航道工程]