Assessment of myocardial perfusion and systolic function in patients with coronary artery disease after coronary artery bypass surgery by myocardial contrast echocardiography and two-dimensional strain echocardiography |
| |
Authors: | Rong LIU Youbin DENG Xiaojun BI Yani LIU Li XIONG Liuping CHEN |
| |
Institution: | Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China |
| |
Abstract: | The clinically applied value of myocardial perfusion and systolic function in patients with coronary artery disease after
coronary artery bypass surgery using real-time myocardial contrast echocardiography (RT-MCE) combined with two-dimensional
strain echocardiography was assessed. Twenty patients underwent intravenous RT-MCE by intravenous injections of SonoVue before
and after coronary artery bypass surgery. Two-dimensional images were recorded from the left ventricular four-chamber view,
two-chamber view and the apical view before, and two weeks and three months after coronary artery bypass surgery, and the
peak systolic longitudinal strain was measured. The results showed that myocardial perfusion was significantly increased after
coronary artery bypass surgery in about 71.6% segments. In the group that myocardial perfusion was improved, the peak systolic
longitudinal strain three months after bypass surgery was significantly higher than that before operation (?15.78±5.91)%
vs (?10.45±8.31)%, P<0.05]. However, the parameters did not change in the group without myocardial perfusion improvement (?10.33±6.53)% vs (?9.41±6.09)%, P>0.05]. It was concluded that whether or not the improvement of myocardial perfusion can mirror the recovery trend of regional
systolic function, two-dimensional strain echocardiography can observe dynamic change of regional systolic function. The combination
of myocardial perfusion with two-dimensional strain echocardiography can more accurately assess the curative effectiveness
of coronary artery bypass surgery. |
| |
Keywords: | two-dimensional strain myocardial contrast echocardiography myocardial perfusion ventricular function coronary artery disease |
本文献已被 维普 万方数据 SpringerLink 等数据库收录! |
|