Value of Myocardial Perfusion Imaging Combined with Enhanced CT in Evaluating Reperfusion Injury in Patients with Myocardial Ischemia
Objective To explore the value of myocardial perfusion imaging combined with enhanced CT in evaluating the occurrence of reperfusion injury in patients with myocardial ischemia.Methods Clinical data of 80 patients with myocardial ischemia admitted to the First People's Hospital of Pingdingshan City from October 2020 to October 2022 were retrospectively collected.Based on the occurrence of myocardial ischemia-reperfusion injury,the 80 patients were divided into an injury group(28 cases)and an uninjured group(52 cases).All patients underwent myocardial perfusion imaging combined with enhanced CT examination before percutaneous coronary intervention(PCI).The myocardial perfusion imaging and enhanced CT indexes of the two groups were compared,and the receiver operating characteristic(ROC)curve was drawn to evaluate the value of myocardial perfusion imaging,enhanced CT alone and combined evaluation of reperfusion injury in patients with myocardial ischemia.Results The left ventricular end-systolic volume and left ventricular end-diastolic volume in the injury group were higher than those in the uninjured group,and the differences were statistically significant(P＜0.05).The comparison of left ventricular ejection fraction between the two groups showed that the injured group was smaller than the uninjured group,and the difference was statistically significant(P＜0.05).The myocardial blood flow and myocardial blood volume of the injured group were both lower than those of the uninjured group,and the differences were statistically significant(P＜0.05).The comparison of peak time between the two groups showed that the injury group was longer than the uninjured group,and the difference was statistically significant(P＜0.05).The ROC curve was drawn,and the results showed that the area under the curve of myocardial perfusion imaging indicators and enhanced CT indicators for evaluating reperfusion injury in patients with myocardial ischemia was greater than 0.7,which had certain predictive value,and the combined predictive value was higher.Conclusion Myocardial perfusion imaging combined with enhanced CT can accurately evaluate the reperfusion injury in patients with myocardial ischemia.
万方数据
维普
