Fermor U, Huber H, Neuhaus K L, Schmiel F K, Spiller P
Basic Res Cardiol. 1979 Jul-Aug;74(4):361-77. doi: 10.1007/BF01908390.
The relation between videodensitometrically measured front velocity and electromagnetically assessed flow was examined in a circulatory model with continuous as well as pulsatile flow (89 experiments). The diameter of the tubes in the videodensitometric measuring section was 0.305 to 0.518 cm. A linear correlation was proved in flow velocities up to Reynold's number Re = 225. The exact flow, measured electromagnetically, was overestimated in continuous flow by 21% (r = 0.99, Syx = +/- 14.5 ml/min) and in pulsatile flow by 24% (r = 0.98, Syx = +/- 20.8 ml/min). In view of these results the phasic and average flow can be calculated accurately using videodensitometric techniques.
在一个具有连续流和脉动流的循环模型中（89次实验），研究了视频密度测量法测得的前沿速度与电磁评估流量之间的关系。视频密度测量部分的管道直径为0.305至0.518厘米。在雷诺数Re = 225以下的流速中证明了线性相关性。电磁测量的精确流量在连续流中被高估了21%（r = 0.99，Syx = +/- 14.5毫升/分钟），在脉动流中被高估了24%（r = 0.98，Syx = +/- 20.8毫升/分钟）。鉴于这些结果，使用视频密度测量技术可以准确计算相流量和平均流量。
