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本文通过临床研究陈旧性心肌梗塞(下简称心梗)的差电位图表现与核素心血管造影及心肌灌注断层显像结果进行对照。80例陈旧性心梗分为前壁、下后壁、前壁+下后壁心梗三组。差电位田显示,心室兴奋早中期,前壁及下后壁心梗组的负区部位、范围及出现时间与心梗后电位丧失区域对应。前壁+下后壁心梗组负区意义难定。差电位图平均负区面积百分比与核素心血管造影所示左室相位分布的标准差及半定量计分法测定的局部相位延迟呈正相关,与左室射血分数之间为负相关。与33例心肌灌注断层显像缺损体积呈正相关。
This article through the clinical study of old myocardial infarction (hereinafter referred to as myocardial infarction) difference potential performance and radionuclide angiography and myocardial perfusion tomography results were compared. 80 cases of old myocardial infarction is divided into anterior wall, posterior wall, anterior wall + posterior wall myocardial infarction three groups. Potential field shows that ventricular excitement early and midterm, anterior wall and inferior posterior wall myocardial infarction group of negative area, range and appearance of time and myocardial infarction potential loss corresponding. Anterior wall + inferior posterior wall myocardial infarction negative zone meaning difficult to set. The mean negative area percentage of the difference plot was positively correlated with the standard deviation of the left ventricular phase distribution as indicated by the radionuclide imaging and the local phase delay measured by the semi-quantitative scoring method and negatively correlated with the left ventricular ejection fraction. And 33 cases of myocardial perfusion tomography defect volume was positively correlated.