Nemati M, Loozen G B, van der Wekken N, van de Belt G, Urbach H P, Bhattacharya N, Kenjeres S
Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands.
Transport Phenomena Section, Department of Chemical Engineering, Faculty of Applied Sciences and J. M. Burgerscentrum for Fluid Mechanics, Delft University of Technology, Delft, The Netherlands.
Biomed Opt Express. 2015 Sep 21;6(10):4037-50. doi: 10.1364/BOE.6.004037. eCollection 2015 Oct 1.
A preliminary comparative measurement between particle imaging velocimetry (PIV) and laser speckle contrast analysis (LASCA) to study pulsatile flow using ventricular assist device in a patient-specific carotid artery phantom is reported. These full-field optical techniques have both been used to study flow and extract complementary parameters. We use the high spatial resolution of PIV to generate a full velocity map of the flow field and the high temporal resolution of LASCA to extract the detailed frequency spectrum of the fluid pulses. Using this combination of techniques a complete study of complex pulsatile flow in an intricate flow network can be studied.
报道了在患者特异性颈动脉模型中使用心室辅助装置对粒子图像测速技术（PIV）和激光散斑对比分析（LASCA）进行初步比较测量，以研究脉动血流。这两种全场光学技术都已用于研究血流并提取互补参数。我们利用PIV的高空间分辨率生成流场的全速度图，并利用LASCA的高时间分辨率提取流体脉冲的详细频谱。通过这种技术组合，可以对复杂流动网络中的复杂脉动血流进行全面研究。
