摘要
目的 采用多普勒超声心肌作功指数评价急性心肌梗塞患者左室功能的价值。方法 急性心肌梗塞患者 (AMI) 5 2例 ,其中killip分级 1～ 2级 36例 ,3～ 4级 16例 ;正常对照组 32例。测定左室射血分数 (EF) ,每搏量 (SV) ,心脏指数 (CI) ,射血前期 射血时间 (PEP ET) ,等容收缩时间 射血时间 (ICT ET) ,等容舒张时间 (IRT)及计算心肌作功指数(MPI)。MPI =(ICT +IRT) ET ,由二尖瓣关闭至开放时间减去ET所得值再除以ET而得。结果 MPI对照组为 0 .48±0 .0 9;killip分级 1～ 2级组为 0 .67± 0 .15 ;3～ 4级组为 1.0 0± 0 .19;各组间均具有显著性差异 (P <0 .0 1)。MPI与心率无关。
Objective To explore the Value of evaluating left ventricular function by myocardial performance index(MPI)in acute myocardial infarction(AMI). Methods Echocardialgraphy was performed in 36 patients with AMI of class 1～2,16 patients with AMI of class 3～4 and 32 normal controls,the following parameters,such as EF,SV,CI,PEP/ET,ICT,IRT,were detected,then MPI=(ICT+IRT)/ET.Results MRI was 0.48±0.09,0.67±0.15 and 1.00±0.19 in normal group,class 1～2 group,and class 3～4 group,respectively(P<0.01 in pairwise comparison).MPI was independent of heart rate.Conclusions MPI can conveniently evaluate the systolic and diastolic function of left ventricle in acute myocardial infarction
出处
《临床超声医学杂志》
2003年第1期32-34,共3页
Journal of Clinical Ultrasound in Medicine
