Slaaf D W, Jeurens T J, Tangelder G J, Reneman R S, Arts T
Ann Biomed Eng. 1986;14(2):175-86. doi: 10.1007/BF02584268.
Several methods to measure red blood cell velocity in microvessels by electronic means are discussed. Signals are generated by the red blood cells present in the microscopic image of the microvessels. These signals can be converted to obtain an output signal proportional to the actual red blood cell velocity. The method of spatial filtering by interlacing gratings is discussed in terms of a filter with an input signal. Adaptation of optical factors that might improve the velocity measurement is obtained by a mathematical analysis. Different methods of correlation are presented. The temporal correlation (dual slit and video window) and spatial correlation methods are discussed in relation to factors influencing the quality of the correlogram, the peak of which is proportional to red blood cell velocity. The conversion of red blood cell velocity to volume flow is put in perspective.
讨论了几种通过电子手段测量微血管中红细胞速度的方法。信号由微血管显微图像中存在的红细胞产生。这些信号可以被转换以获得与实际红细胞速度成比例的输出信号。从具有输入信号的滤波器角度讨论了通过交错光栅进行空间滤波的方法。通过数学分析获得了可能改善速度测量的光学因素的适配。介绍了不同的相关方法。讨论了时间相关（双缝和视频窗口）和空间相关方法与影响相关图质量的因素的关系，相关图的峰值与红细胞速度成比例。阐述了红细胞速度到体积流量的转换。
