心阻抗血流图(Impedance Cardiography)是反映心功能的无创伤性检查方法。可估计左房射血分数,计算心输出量,测定心肌收缩力,反映二尖瓣和主动脉瓣返流程度,早期检测肺水肿,了解药物对心血管系统的影响,监测血液动力学变化。此法安全、简便、重复性好,可 Impedance Cardiography is a non-invasive method of examining cardiac function. Left atrial ejection fraction can be estimated, cardiac output was calculated, myocardial contractility was measured, mitral regurgitation and aortic valve regurgitation were reflected, early detection of pulmonary edema, drug effects on the cardiovascular system, and monitoring of hemodynamic changes. This method is safe, simple, reproducible, and available