This paper derived a non-Linear function relationship between the cardiac impedance plethysmogram and the heart ejection by researching differential equation of the aortic volume change.
本文通过研究主动脉容积变化微分方程，导出了心阻抗图与心脏射血的非线性函数关系。
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The results indicated that the use of temporal arterial pressure pulse wave can assure the accuracy of the inflation time, avoid the potential danger existed in earlobe plethysmogram and pr…