Preliminary Study of Application of the Ultrasonic Particle Image
Velocimetry Technique in Evaluation of Left Ventricular Vortex
Characteristics
ZHANG Yao-nan1,2, ZHOU Wei2,3,NIU Li-li3
1. College of Electronics and Information
Engineering, Xi’an Siyuan University, Xi’an
Shaanxi 710038, China; 2. Sino-Dutch
Biomedical and Information Engineering
School, Northeastern University, Shenyang
Liaoning 110169, China; 3. Institute of
Biomedical and Health Engineering,
Shenzhen I n s t i t u tes o f Advanced
Technology, Chinese Academy of Science,
Shenzhen Guangdong 518055, China
Abstract：The vortex properties of left ventricles can be considered as a potential indicator for
heart’s health status. Using the ultrasonic particle image velocimetry (PIV) technique to calculate the
characteristics of vortex in the heart is a relatively new research direction, and the key is to prove its
adequate reliability and accuracy for clinical applications. For this purpose, a ultrasonic particle image
velocimetry system was constructed to build a human blood circulation simulation system. And the
polyvinyl alcohol (PVA) was used to make the left ventricular phantoms, so that the ultrasonic PIV
technique could be tested in controlled conditions for the calculation of the vortex characteristics in
the heart. The system achieved continuous imaging of the body, by adjusting the scanning line density,
image width, image depth and other parameters, with the fastest speed of thousands of frames per
second. Cardiac blood flow velocity profiles were obtained through the algorithm of acoustic PIV and
further calculation of relevant parameters for the vortex in the heart, including energy loss (DI) and
energy fluctuations (EF), vortex relative strength (RS) and eddy fluctuations (W). The results show
that the constructed system, the simulated body and the related algorithms are feasible, which is the
basis for the next step of work.
张耀楠1,2，周伟2,3，牛丽丽3. 超声粒子图像测速技术评估左心室涡旋特性的初步研究[J]. 中国医疗设备, 2016, 31(6): 36-41.
ZHANG Yao-nan1,2, ZHOU Wei2,3,NIU Li-li3. Preliminary Study of Application of the Ultrasonic Particle Image
Velocimetry Technique in Evaluation of Left Ventricular Vortex
Characteristics. China Medical Devices, 2016, 31(6): 36-41.
