一种新型血液模拟液在血流多普勒测试对象中的应用。
Application of a new blood-mimicking fluid in a flow Doppler test object.
作者信息
Lubbers J
机构信息
Department of BioMedical Engineering, University of Groningen, Bloemsingel 10, 9712 KZ, Groningen, The Netherlands.
出版信息
Eur J Ultrasound. 1999 Jul;9(3):267-76. doi: 10.1016/s0929-8266(99)00035-x.
OBJECTIVE
To construct and apply a flow Doppler test object and its flow rig.
METHODS
In this flow rig, particular attention was given to use of a long inlet length and to ensure the absence of disturbing particles. The latter was obtained by proper degassing, use of a filter and application of a fungicide. Two blood-mimicking fluids were used, with a viscosity of 4 and 8 mPa s respectively.
RESULTS
Predictable Poiseuille flow profiles were obtained. The velocity range could be extended by increasing the viscosity of the blood-mimicking fluid. Predictable axial velocities up to 2.5 m/s were obtained in an 8-mm tube and 5 m/s in a 4-mm tube.
CONCLUSION
Well-defined flow conditions that can be applied to investigate clinical ultrasound Doppler systems in a number of situations have been obtained.
目的
构建并应用一种血流多普勒测试体模及其流动装置。
方法
在该流动装置中，特别注意采用较长的入口长度，并确保不存在干扰颗粒。通过适当的脱气、使用过滤器和施加杀菌剂来实现后者。使用了两种模拟血液的流体，其粘度分别为4和8毫帕秒。
结果
获得了可预测的泊肃叶流动剖面。通过增加模拟血液流体的粘度可以扩展速度范围。在8毫米的管子中获得了高达2.5米/秒的可预测轴向速度，在4毫米的管子中获得了5米/秒的可预测轴向速度。
结论
已获得可应用于多种情况下研究临床超声多普勒系统的明确流动条件。
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