用于测量血管直径的视频密度测定法。
Videodensitometry for measuring blood vessel diameter.
作者信息
Hoornstra K, Hanselman J M, Holland W P, De Wey Peters G W, Zwamborn A W
出版信息
Acta Radiol Diagn (Stockh). 1980;21(2A):155-64. doi: 10.1177/028418518002102a04.
A method employing a special computer for determining the internal diameters of blood vessels from photofluorographic image is described; in vitro and in vivo experiments are performed with the system. The amount of contrast medium injected is restricted to 4 times 3 ml, and it is possible to determine the diameter (in the range from 2 to 16 mm) at any place where blood vessels can be catheterized. In the in vivo experiments the maximum systematic error is +/-5 percent in the 7 to 8 mm range.
描述了一种使用特殊计算机从荧光摄影图像确定血管内径的方法；用该系统进行了体外和体内实验。注入的造影剂用量限制为4×3毫升，并且可以在任何能够插入导管的血管部位确定直径（范围为2至16毫米）。在体内实验中，在7至8毫米范围内最大系统误差为±5%。
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