Detection of myocardial coronary flow reserve of syndrome X by real-time myocardial contrast echocardiography

VernacularTitle:实时心肌超声造影评价X综合征患者心肌冠状动脉血流储备
Author: Wenjun ZHANG ; Shaowen GUO ; Yi HE
Publication Type:Journal Article
Keywords: Eehocardiography; Microbubbles; Mierovascular angina; Coronary flow reserve
From: Chinese Journal of Ultrasonography 2009;18(4):308-310
CountryChina
Language:Chinese
Abstract: Objective To evaluate myocardial coronary flow reserve of syndrom X by real-time myocardial contrast echocardiography(MCE). Methods Ten patients with syndrome X and seven normal subjects were involved in the study. Real-time MCE was performed with acoustic contrast SonoVue,and the peak video density (A), and re-turgor velocity of microvessel (β), and the product of A ×β of quiescent condition and after adenosin loading were detected,and also the coronary flow reserve (CFR, the ratio of A xβ circa-adenosin loading). Results There was no significant difference of A between syndrom X and contrast group in quiescent condition, the β and product of A x β of patients with syndrome X were lower than those of contrast group, the CFR of syndrome X was obviously less than that of contrast group.Conclusions Myocardial microvessel function is abnormal in syndrome X, real-time MCE is useful for evaluate myocardial coronary flow reserve.