用恒压式导纳法测量心输出量是目前世界上无损伤测量心脏各项指数的新技术之一。以Kubicek公式 SV=ρL~2(dt/dy)_(max)·T的方法计算心输出量,作者已在另一篇文章中介绍过,本文着重介绍以恒压式导纳图求积法计算心输出量,它比Kubicek公式计算更为方便。一、求积法的基本原理和方法 Kubicek方法计算心输出量似,虽然目前在国际上比较通用,但它毕竟是一种并不十分严密的近似算法。首先是公式中(dz/dt)_(max)T的引入,在理论方面还缺乏充分的根据;其 Constant pressure admittance method to measure cardiac output is one of the new technologies in the world to measure the cardiac indexes without damage. The Kubicek formula SV = ρL ~ 2 (dt / dy) _ (max) · T method of calculating cardiac output, the author has been introduced in another article, this article focuses on constant voltage admittance plot quadrature Calculate the cardiac output, it is more convenient than the Kubicek formula. First, the basic principle and method of quadrature Kubicek method to calculate the cardiac output like, although more common in the international arena, but after all, it is not a very close approximation algorithm. The first is the introduction of (dz / dt) _ (max) T in the formula, in theory there is a lack of sufficient basis; its