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首页> 外文会议>Conference on Optics in Health Care and Biomedical Optics: Diagnostics and Treatment, Oct 15-18, 2002, Shanghai, China >Monte Carlo Simulation of Measuring Capillary Blood Flow with Diffusing light Correlation
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Monte Carlo Simulation of Measuring Capillary Blood Flow with Diffusing light Correlation

机译：散射光相关测量毛细血管血流的蒙特卡罗模拟

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摘要

The velocity of capillary blood flow is an important parameter to diagnose some diseases. In this paper, a model was set up to non-invasively measure the capillary blood flow using diffusing temporal light auto-correlation. This method is independent of the direction of blood flow. The distance between the light source and the detector was discussed in order to obtain high SNR (signal to noise ratio). The influences of the Brownian motion and the random flow of scatterers on the auto-correlation of diffusing light were analyzed with Monte Carlo simulation. The simulation results show that the characteristic correlation time exponentially decays as the mean-squared velocity of capillary blood flow increases, which is useful for medical diagnosis.
机译：毛细血管血流的速度是诊断某些疾病的重要参数。在本文中，建立了一个使用漫射时间光自相关非侵入性测量毛细血管血流的模型。该方法与血流方向无关。讨论了光源和检测器之间的距离，以获得高SNR（信噪比）。利用蒙特卡洛模拟分析了布朗运动和散射体的随机流动对散射光自相关的影响。仿真结果表明，特征相关时间随毛细血管血流均方速度的增加呈指数下降，对医学诊断很有用。

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