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目的:评价运动加静息心肌灌注显像诊断心脏X综合征的价值。方法:对46例X综合征患者行运动心电图检查同时行运动负荷心肌灌注显像,次日行静息心肌灌注显像,将心肌显像结果与运动心电图结果进行比较,以评价其诊断价值。结果:46例患者心肌灌注显像异常43例,心电图平板运动试验阳性者35例,其中心电图平板运动试验11例阴性的患者心肌灌注显像均阳性。心肌灌注显像及运动心电图对心脏X综合征诊断的灵敏度分别为93.5%(43/46)和76.1%(35/46)。两者联合检测灵敏度为100%。结论:运动加静息心肌灌注显像对心脏X综合征的诊断灵敏度较运动心电图高,联合检查可提高诊断的灵敏度。
Objective: To evaluate the value of exercise plus resting myocardial perfusion imaging in the diagnosis of cardiac X syndrome. Methods: Forty-six patients with syndrome X underwent exercise electrocardiography and myocardial perfusion imaging at the same time. Resting myocardial perfusion imaging was performed the next day. The results of myocardial imaging and exercise electrocardiogram were compared to evaluate the diagnostic value. Results: There were 43 cases of myocardial perfusion imaging abnormality in 46 cases, 35 cases of electrocardiogram treadmill exercise test positive, and 11 cases of electrocardiogram treadmill exercise test were negative in myocardial perfusion imaging. The sensitivity of myocardial perfusion imaging and exercise electrocardiogram in the diagnosis of cardiac X syndrome were 93.5% (43/46) and 76.1% (35/46), respectively. The combined detection sensitivity of both is 100%. Conclusion: Exercise and resting myocardial perfusion imaging in the diagnosis of cardiac X syndrome sensitivity than exercise ECG, combined examination can improve the diagnostic sensitivity.