Transcutaneous measurement of blood flow velocity in the human aorta.
Transcutaneous measurement of blood flow velocity in the human aorta.
复制标题
经皮测量人体主动脉的血流速度。
作者：
B. Angelsen;A. Brubakk
介绍了一种测量人体主动脉血流速度的多普勒流速仪。使用脉冲超声波，该仪器允许在选定的深度测量速度。该仪器已在实验室实验中进行了测试，并出现稳定和脉动流的平均流速的准确估计。流速和每搏输出量的估计已获得18例患者的升主动脉。建议目前只能测量流量和流速的相对值。提出了一种基于主动脉弓扫描获得这些参数绝对值的方法。
A Doppler velocity meter for measuring blood flow velocity in the human aorta is described. Using pulsed ultrasound, this instrument allows the velocity to be measured at selected depths. The instrument has been tested in laboratory experiments, and appears to give accurate estimates of mean flow velocity for both steady and pulsatile flows. Flow velocities and estimates of stroke volume have been obtained from the ascending aorta in 18 patients. It is suggested that at present only relative values for flow and flow velocity can be measured. A method for obtaining absolute values for these parameters, based on scanning in the aortic arch, is proposed.