Bjorno L, Pettersson H
Acta Radiol Diagn (Stockh). 1977 Mar;18(2):193-209. doi: 10.1177/028418517701800208.
The volumetric flow rate and the pressure course through free and catheterized stenoses have been analysed experimentally. The influence of the following parameters has been considered: (a) the penetration depth of the catheter into stenoses of various geometrical shapes and various dimensions, (b) the length of the stenosis, (c) the size of the annular lumen area between the catheter and the stenosis wall, (d) the geometrical shape of the stenosis. Some previous attempts to derive a simple relation between the volumetric flow through and the pressure fall across stenosis with and without introduced catheter are discussed. Clinical pressure measurements across renal artery stenoses are given, and the validity of catheter-measured pressure gradients across stenoses is discussed.
通过实验分析了通过自由狭窄和有导管狭窄的体积流量和压力过程。考虑了以下参数的影响：(a) 导管进入各种几何形状和尺寸狭窄的穿透深度；(b) 狭窄的长度；(c) 导管与狭窄壁之间环形腔面积的大小；(d) 狭窄的几何形状。讨论了一些先前尝试推导在有和没有引入导管情况下通过狭窄的体积流量与狭窄两端压力降之间简单关系的情况。给出了跨肾动脉狭窄的临床压力测量结果，并讨论了通过导管测量的狭窄两端压力梯度的有效性。
