^(99m)Tc-MIBI心肌灌注显像的临床研究

Clinical evaluation of myocardial perfusion imaging with ^(99m)Tc-MIBI

56例心肌梗塞与38例非心肌梗塞^(99m)Tc-MIBI的心肌显像结果,心肌梗塞灌注异常阳性率92.84％。图像直观性强,有整体感,定位准确,病变范围大于心电图。扩张型心肌病12例的特征是心腔明显扩大,心肌普遍变薄,无局限性稀疏缺损区。心绞痛16例和正常自愿者6例的静息心肌显像均阴性。

Myocardial imaging with 99mTc-MIBI were performed in 56 cases with myocardial infarctioa and 38 cases without infarction. The result showed that the sensitivity, specificity and ac-ouracy were 92.86%, 100% and 95.74% respectively. In comparison with the findings of ECG, the size and location of infarcted areas shown by γ-camera are more accurate, can be directly perceived and can give a whole picture sense of entirety. The features of dilation myocardiopathy are obvious dilation of heart and generalized thinning of the myocardial wall, but without localized defect of perfusion.