Ramnarine K V, Hoskins P R, Routh H F, Davidson F
Department of Medical Physics, University of Edinburgh, Royal Infirmary, UK.
Ultrasound Med Biol. 1999 Jan;25(1):105-10. doi: 10.1016/s0301-5629(98)00139-2.
The Doppler backscatter properties of a blood-mimickig fluid (BMF) were studied to evaluate its suitability for use in a Doppler flow test object. Measurements were performed using a flow rig with C-flex tubing and BMF flow produced by a roller pump or a gear pump. A SciMed Doppler system was used to measure the backscattered Doppler power with a root-mean-square power meter connected to the audio output. Studies investigated the dependence of the backscattered Doppler power of the BMF with: circulation time; batch and operator preparations; storage; sieve size; flow speed; and pump type. A comparison was made with human red blood cells resuspended in saline. The backscatter properties are stable and within International Electrotechnical Commission requirements. The BMF is suitable for use in a test object for Doppler performance assessment.
研究了一种血液模拟液（BMF）的多普勒后向散射特性，以评估其在多普勒血流测试对象中的适用性。使用带有C型挠性管的流动装置和由滚子泵或齿轮泵产生的BMF流进行测量。使用SciMed多普勒系统，通过连接到音频输出的均方根功率计测量后向散射多普勒功率。研究调查了BMF的后向散射多普勒功率与以下因素的相关性：循环时间；批次和操作人员准备；储存；筛网尺寸；流速；以及泵的类型。与悬浮在盐水中的人类红细胞进行了比较。后向散射特性稳定，符合国际电工委员会的要求。BMF适用于多普勒性能评估的测试对象。
