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。
Ejection fraction(EF) and cardiac output(CO) of patients in the 3 groups were evaluated before, 4 and 8 weeks after operation respectively.
分别对3组患者术前、术后4周、8周心脏射血分数（EF）及心输出量（CO）进行观察。
The correlations of serum level of C reactive protein with grade of cardiac function, cardiac anatomic indexes and left ventricular ejection fraction were analyzed.
分析血清C反应蛋白水平与心功能分级、心脏解剖参数和左室射血分数的相关性。
Left ventricular end diastolic volume (LVEDV), left ventricular end systolic volume (LVESV), left ventricular ejection fraction (LVEF) and cardiac events in each group were followed up.
随访两组患者的左室收缩末期容积(LVESV)、左室舒张末期容积(LVEDV)、左室射血分数(LVEF)及心脏事件。
The changes of cardiac function, renal function, echocardiographic left ventricular ejection fraction(LVEF), left ventricular fraction shortening(LVFS) before and after treatment were compared.
观察治疗前后两组患者心功能、肾功能、超声心动图、左室射血分数（LVEF）、左室短轴缩短率（LVFS）的变化。
The changes of cardiac function, renal function, echocardiographic left ventricular ejection fraction(LVEF), left ventricular fraction shortening(LVFS) before and after treatment were compared.
观察治疗前后两组患者心功能、肾功能、超声心动图、左室射血分数（LVEF）、左室短轴缩短率（LVFS）的变化。
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