Bardou A, Levy B, Birkui P, Fustinoni O, Lesigne C, Saumont R, Henzel D
Med Prog Technol. 1977 Jul 15;5(1):27-34.
The aim of this work is to define, on the basis of impedance rheography, a method to record arterial section variations without either inertia or the production of wall-strain. High frequency current (2 MHz) is employed to measure the impedance variations of the deforming artery. The modulating envelope is representative of arterial section variations. This method permits the recording of arterial section variations by a peri-arterial method or an external method on superficial arteries (without denudation). A comparison between arterial section variations and arterial pressure variations at the same point shows that the arterial wall behaves as a non-linear pressure gauge: Rheogram-pressure curves are similar to volume-arterial pressure curves. The great precision with which this method describes the chronology of arterial deformations is of great interest in defining viscous properties of the arterial wall and following their evolution during pathologic alterations such as atherosclerosis.
这项工作的目的是在阻抗血流图的基础上，定义一种无需惯性或产生壁应变就能记录动脉截面变化的方法。采用高频电流（2兆赫）来测量变形动脉的阻抗变化。调制包络代表动脉截面变化。该方法允许通过动脉周围方法或外部方法（无需剥离）在浅表动脉上记录动脉截面变化。同一点处动脉截面变化与动脉压变化的比较表明，动脉壁表现为一个非线性压力计：血流图-压力曲线类似于容积-动脉压曲线。这种方法描述动脉变形时间顺序的高精度对于确定动脉壁的粘性特性以及追踪其在动脉粥样硬化等病理改变过程中的演变具有重要意义。
