目的：评价全软成形环在二尖瓣关闭不全瓣环成形术中的作用。
Aim: To assess the effect of the totally flexible prosthetic ring in mitral and tricuspid annuloplasty.
方法通过DTI - M型模式检测33例健康人心尖四腔观和二腔观二尖瓣环后瓣叶外侧缘的运动。
Methods Mitral annular motion in 33 cases of normal subjects form apical four-chamber view and two-chamber view were detected with DTI-M mode.
目的总结二尖瓣后环缝缩治疗二尖瓣关闭不全(MI)的临床经验。
Objective to summarize the experience in treating mitral insufficiency (mi), due to secondary annular dilation in the posterior portion of the annulus with mitral valve reconstruction.
分别对开胸犬及7例二尖瓣金属瓣置换术后患者利用多普勒组织成像中的速度时间积分曲线对放置钛夹处心肌及二尖瓣环处的长轴运动位移进行定量研究；
Quantitative study was made on time velocity integral(TVI) of the implanted myocardium and left ventricular long axis in 7 canine models, and 7 patients with replaced metal mitral valve.
患者较正常对照组心脏二尖瓣环、三尖瓣环下移距离显著减小（P<0.01），二尖瓣E波最大流速显著增大（P<0.01）；
The SD of mitral and tricuspid annuli were more lower than control group (P<0.01), and E velocity of mitral flow is higher (P<0.01) .
目的：分析孤立性二尖瓣瓣上狭窄环的影像学特征。
Purpose: To analyse the imaging manifestations of isolated supramitral ring.
结论二尖瓣置换术后远期三尖瓣功能性关闭不全与三尖瓣环扩大、右心功能损害和严重肺动脉高压有关，三尖瓣环扩大是其重要的原因。
Conclusion tricuspid annular dilatation, right heart impairment and severe pulmonary hypertension are responsible for the development of late tricuspid regurgitation after mitral valve replacement.
结论对于有瓣环扩大的二尖瓣成形术，应用人工瓣环，近期和远期临床效果均满意。
Conclusion The late efficacy of mitral annuloplasty using prosthetic ring is satisfactory.
目的应用多普勒组织成像技术（DTI）探查正常人二尖瓣环的运动，以阐明二尖瓣环运动的特征。
Methods Mitral annular motion in 35 cases of normal subjects form apicial four chamber view and two chamber view were detected with DTI M mode.
目的探讨二尖瓣口血流频谱和瓣环的组织多普勒频谱与左室平均舒张压的关系。
Objective To determine the relationship between left atrial diameter and mitral valve area or left atrial mean pressure in patients with rheumatic pure mitral stenosis.
目的探讨二尖瓣口血流频谱和瓣环的组织多普勒频谱与左室平均舒张压的关系。
Objective To determine the relationship between left atrial diameter and mitral valve area or left atrial mean pressure in patients with rheumatic pure mitral stenosis.
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