目的：了解肥厚型心肌病（HCM）和扩张型心肌病（DCM）患者心交感神经功能（CSNF）和左心功能以及心肌灌注的关系。方法：３８例受检者（其中DCM１５例，CM１８例，５名健康者为对照，检查前两周内未接受任何药物治疗）静脉注射１２３I－MIBG（１２３I－间碘苄胍）１１１MBq后 Objective: To investigate the relationship between cardiac sympathetic nerve function (CSNF), left ventricular function and myocardial perfusion in patients with hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM). Methods: Thirty-eight patients (15 cases of DCM, 18 cases of CM and 5 healthy controls were treated with no medical treatment within two weeks before the test) were injected with 111 MBq of 123I-MIBG