Evaluation Of The Recent Efficacy Of Percutaneous Coronary Intervention In Patients With Acute Coronary Syndroms

Objective To investigate the recent efficacy of percutaneous coronary intervention(PCI) (percutaneous trnsluminal coronary angioplasty and coronary stenting) using SPECT 99mTc-MIBI myocardial perfusion imaging in patients with acute coronary syndroms(ACS).Methods The numbers of ischemic segments and the ischemic score were observed by stress-rest 99mTc-MIBI SPECT myocardial perfusion imaging which were performed on the patients before PCI and during follow-up.Results SPECT imaging were obtained in 40 patients before PCI and 1 month ,3 months and 6 months after PCI,respectively. There were significant differences in the ischemic segments(1.57±1.42,1.00±1.39,1.17±1.40, 1. 23±1.33, P<0. 05) and the ischemic score(3. 26±3.63 ,2.29±3.44, 2.54 ±3.41,2.51±3.27, P<0. 05),compaired before and after PCI.It suggested that the recent ischemia was significantly improved.Recurrent ischemia occured in 1 patient(2.5%) 1 month ,4 patients(10%) 3 months and 6 patients(15%) 6 months after PCI.Conclusion Successful PCI can improve the myocardial blood supply and decrease the number of ischemic segments. 99mTc-MIBI ST-RE SPECT can provide an efficient value for the evaluation of the recent efficacy of PCI.