MacDonald D A
J Biomech. 1986;19(3):239-49. doi: 10.1016/0021-9290(86)90156-9.
A model is presented for the physiological problem of a catheter which is inserted in a femoral artery to measure the pressure gradient. As the catheter will modify the pressure distribution in the artery, the pressure gradient which would be recorded by a perfect pressure transducer attached to it would differ from that in the uncatheterised artery. To estimate the magnitude of this error, it is assumed that the rates of flow of blood through the catheterised and the uncatheterised artery are described by the same known periodic function of time.
本文提出了一个针对插入股动脉以测量压力梯度的导管的生理问题的模型。由于导管会改变动脉中的压力分布，连接在导管上的理想压力传感器所记录的压力梯度将与未插入导管的动脉中的压力梯度不同。为了估计这种误差的大小，假设通过插入导管的动脉和未插入导管的动脉的血流速率由相同的已知时间周期函数描述。
