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一、概况血流图法(Rheography)是电阻抗容积描记法(Electrical Impedance Plethys-mography)的习惯称法,是近年来发展起来的一种根据体外非创伤性检查生物体电阻抗,从而较客观地估价生物体各部分搏动性血容量供给程度的生物物理学方法。自 Mann(1937)使用惠斯登电桥记录了四肢电阻抗容积之后,桥式电阻抗客积描记法在国外逐渐普及,陆续用于脑、心、肺、肝、肾、及胎儿等组织的电阻抗容积描记。
First, an overview of the blood flow method (Rheography) is the traditional method of electrical Impedance Plethysmography, is developed in recent years according to an in vitro non-invasive examination of biological electrical impedance, which is more objective Biophysical Methods to Assess the Supply of Pulmonary Blood Volume in Various Parts of Organisms. Since Mann (1937) recorded the electrical impedance volume of the extremities using a Wheatstone bridge, bridge impedance spectroscopy has gained popularity in many foreign countries, one after another for brain, heart, lung, liver, kidney, and fetal tissues Electrical impedance recording.