Gd-DTPAMRI在心绞痛中的作用

Value of Gd-DTPA MRI in the Diagnosis of Angina Pectoris

目的：探讨Ｇｄ－ＤＴＰＡ增强ＭＲＩ在心绞痛中的作用。材料和方法：２２例心绞痛作Ｇｄ－ＤＴＰＡ增强前后ＭＲＩ检查，其中１６例作冠状动脉造影检查，１１例作ＳＰＥＣＴ检查。结果：增强ＭＲＩ上，１８例（８２％）可见局部异常强化信号，其部位与临床ＥＣＧ吻合，与ＣＡ、ＳＰＥＣＴ所示心肌缺血部位一致。在ＭＲＩ上的异常强化信号与冠状动脉狭窄、ＳＰＥＣＴ显示灌注缺损密切有关。结论：Ｇｄ－ＤＴＰＡＭＲＩ为心绞痛的诊断提供有价值的依据。

Purpose:To study the value of Gd-DTPA MRI in the diagnosis of angina pectoris.Materials and Methods:22 patients with angina pectoris were examined with MR imaging before and after intravenous Gd-DTPA enhancement.Of them,16 patients performed with coronary angiography and 11 patients with SPECT.Results:On the enhanced MR images,regional increased signal intensities of myocardium were seen in 18 patients(82%)corresponding well with the ischemic regions detected by ECG,CA,and SPECT.Furethermore,the increased signal intensities on Gd-DTPA MR images were correlated closely with the stenosis of coronary artery and the abnormal perfusion detected by SPECT.Conclusion:Gd-DTPA MRI is valuable for the diagnosis of angina pectoris.