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六十年代后期以来,大量研究资料证实,用心阻抗血流图技术做为一种非创伤性心输出量测定方法,在生理学及临床学方面有一定应用价值,并与创性方法结果进行比较,证明有良好相关性。七十年代后期发现心阻抗血流图微分波型变异,对心血管病变的病理生理评价,有许多重要参考价值。1977年 Ramos 指出心阻抗血流图微分波的0波增高是冠心病人预后不良的警告
Since the late 1960s, a large number of research data have confirmed that the cardiac impedance blood flow graph technique as a non-invasive method for the determination of cardiac output has certain application value in physiology and clinical science and is compared with the results of the innovative methods. Prove that there is a good correlation. In the late seventies, we found that there are many important reference values for differential diagnosis of cardiac impedance and differential pathological changes in cardiovascular disease. In 1977, Ramos pointed out that the 0-wave increase of the differential impedance of the cardioprotective cardiogram is a warning of a poor prognosis in patients with coronary heart disease