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一、引言在研究左心导管插入术时,非常重要的是,评价左心室象一个泵的作用和测定心肌的功能。近年来,在这方面的研究中,对压力—容积指标的推导日益显得重要了。有几个研究人员证明压力对容积的变化率在评价
I. INTRODUCTION In studying left heart catheterization, it is very important to evaluate the role of the left ventricle as a pump and to measure myocardial function. In recent years, the derivation of pressure-volume indicators has become increasingly important in this area of study. Several researchers have shown that the rate of change of pressure versus volume is under evaluation