＜正＞Ultrasound molecular imaging may provide new insights into the early detection and diagnose of diseases,suc...
Wei YANG~1 Fei YAN~1 Juan-Juan CHEN~2 Hai-Rong ZHENG~(1,3,*) 1 Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055 2 Molecular Medicine and Cancer Research Center,Chongqing Medical University,Chongqing 400016 3 Key Lab of Health Informatics of Chinese Academy of Sciences,Shenzhen 518055
＜正＞Drug delivery with microbubbles and ultrasound is gaining more and more attention in the drug delivery fiel...
Fei YAN~1 Lu LI~2 Zhi-Ting DENG~1 Wei YANG~1 Hai-Rong ZHENG~(1,*) 1 Paul C.Lauterbur Research Center for Biomedical Imaging,Institute of biomedical and Health Engineering,SIAT, Shenzhen 518055 2 Molecular Medicine and Cancer Research Center,College of Basic Medicine,Chongqing Medical University, Chongqing,400016
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.
