常見(jiàn)例句雙語(yǔ)例句Objective To investigate the mechanism of functional mitral regurgitation (FMR).目的探討功能性二尖瓣返流的機(jī)制。Objective: To explore the roles of color Doppler vena contracta in the evaluation of mitral regurgitation grading.目的:探討彩色多普勒過(guò)返流口寬度在估測(cè)二尖瓣返流程度中的作用。The aim of study is to detect the influence of left ventricle and mitral apparatus remodeling on mitral regurgitation in different conditions by echocardiography, and investigate the mechanism of IMR.本研究擬通過(guò)超聲心動(dòng)圖檢測(cè)不同情況下左室和二尖瓣裝置的重構(gòu)及其對(duì)反流的影響,探討缺血性二尖瓣返流的機(jī)制,共分四部分。權(quán)威例句The panel met to evaluate use of the novel device in patients with significant symptomatic mitral regurgitation (MR) who have been determined by a cardiac surgeon to be too high risk for open mitral valve surgery and in whom existing co-morbidities would not preclude the expected benefit from correction of the MR.FORBES: FDA Panel Gives Tepid Endorsement To Abbott's MitraClip 返回 mitral regurgitation