Evaluation of right ventricular function in patients with coronary heart disease invol-ving the right coronary artery stenosis by RT-3DE combined with autostrain RV
Aim To investigate the clinical value of real-time three-dimensional echocardiography(RT-3DE)combined with autostrain right ventricle(RV)technology in evaluating right ventricular function in patients with coronary heart disease(CHD)involving the right coronary artery stenosis.Methods A total of 132 patients with suspected CHD were enrolled.According to the results of coronary angiography,they were divided into control group without coro-nary artery stenosis of 50％,CHD without involving the right coronary artery stenosis group(simple CHD group),CHD in-volving the right coronary artery stenosis group.The three groups of subjects were analyzed by conventional echocardio-graphy,autostrain RV technology and RT-3DE.Results Compared with control group,at the basal levels of the right ventricular free wall-longitudinal strain(Basal RVFWSL),at the middle levels of the right ventricular free wall-longitudinal strain(Medial RVFWSL),at the apical levels of the right ventricular free wall-longitudinal strain(Apical RVFWSL),right ventricular free wall-longitudinal strain(RVFWSL),right ventricular 4 chamber longitudinal strain(RV4CSL),right ventricular ejection fraction(RVEF),right ventricular stroke volume(RVSV)and right ventricular stroke volume index(RVSVI)were decreased,while right ventricular end-systolic volume(RVESV),right ventricular end-systolic volume in-dex(RVESVI)were increased in simple CHD group and CHD involving the right coronary artery stenosis group.The differences were statistically significant(all P＜0.05).ROC curve analysis showed that RVFWSL of two-dimensional speckle tracking imaging(2D-STI)and RVEF of RT-3DE had higher diagnostic efficiency,with a sensitivity of 90.9％and a specificity of 95.3％.Conclusions RT-3DE combined with autostrain RV technology can improve the accuracy of evaluating right ventricular dysfunction in patients with CHD involving the right coronary artery stenosis,which provides a basis for early clinical treatment and has good application value.
coronary heart diseaseRT-3DEautostrain RV technologyright coronary artery stenosisright ventricular function
万方数据
维普
