Simplified indicator for assessing flow velocity by simulation

Jialin Liu; Hongchao Zhang; Zhonghua Shen; Jian Lu; Xiaowu Ni

doi:10.1117/12.2201053

15 October 2015 Simplified indicator for assessing flow velocity by simulation

Jialin Liu, Hongchao Zhang, Zhonghua Shen, Jian Lu, Xiaowu Ni

Proceedings Volume 9672, AOPC 2015: Advanced Display Technology; and Micro/Nano Optical Imaging Technologies and Applications; 96720T (2015) https://doi.org/10.1117/12.2201053
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

In order to simplify computation time for multi-exposure speckle imaging, we recently presented a new indicator of blood flow, i.e. the slope of the inverse square of the contrast values versus camera exposure time (k_slope). In this paper we simulate a sequence of correlated dynamic speckle images to test the viability of k_slope as an indicator of flow velocity. We find that the presence of static scattering doesn’t influence the linear relationship between the slope and flow velocity. We also show that the normalization can be performed to obtain equivalence relation between relative slope values and relative flow velocity. The computation can be greatly simplified for multi-exposure speckle imaging. This new indicator k_slope can play an important role in quantitatively assessing tissue blood flow velocity.

Citation Download Citation

Jialin Liu, Hongchao Zhang, Zhonghua Shen, Jian Lu, and Xiaowu Ni "Simplified indicator for assessing flow velocity by simulation", Proc. SPIE 9672, AOPC 2015: Advanced Display Technology; and Micro/Nano Optical Imaging Technologies and Applications, 96720T (15 October 2015); https://doi.org/10.1117/12.2201053

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