摘要
目的:基于一项MRI研究,心脏X综合征患者中存在心内膜下血流灌注不足。但是,还需要进一步的研究以确定这一结果是否具有普遍性。方法和结果:在20例冠状动脉造影正常的心绞痛患者中,利用MRI直观和半定量测量分析静息状态和输注腺苷时的心内膜下及心外膜下血流灌注情况。用心肌信号增强标准化斜率法计算心肌灌注指数(MPI)。
Aims: On the basis of an MRI study it has been suggested that subendocardial hypoperfusion is present in patients with cardiac syndrome X. However, further work is required to test whether these findings can be generalized. Methods and results: MRI was used to visually and semi-quantitatively assess subendocardial and subepicardial perfusion, at rest and during an infusion of adenosine, in 20 patients with angina pectoris and normal coronary angiograms. A myocardial perfusion index(MPI) was calculated using...
