Study on morphology and function of mitral valve leaflets and mitral annulus in patients with mild mitral regurgitation by real-time three-dimensional echocardiography
10.3760/cma.j.issn.1004-4477.2012.02.007
- VernacularTitle:轻度二尖瓣反流二尖瓣瓣叶和瓣环形态与功能变化的三维超声研究
- Author:
Lihua JING
;
Yanhong LI
;
Yuming MU
;
Qi TANG
;
Zhisheng WU
- Publication Type:Journal Article
- Keywords:
Echocardiography,real-time three-diemensional;
Echocardiography,transesophageal;
Mitral valve insufficiency;
Mitral valve
- From:
Chinese Journal of Ultrasonography
2012;21(2):112-115
- CountryChina
- Language:Chinese
-
Abstract:
Objective To measure the parameters of mitral valve leaflets and mitral annulus in patientswithmildmitralregurgitation( MR )byreal timethree-dimensionaltransesophagealechocardiography (RT-3D-TEE),and explored the mechanism of MR.MethodsFifty-seven MR subjects were selected and twenty-eight subjects without mitral regurgitation were served as control group,all subjects were examined by RT-3D-TEE and acquired image,mitral valve quantification (MVQ) software was used for post-processing.Mitral annulus parameters (H/DAIPm,E2D,θAv-Mv,mitral annulus θnpa) and mitral valve leaflets parameters(A3DE,L2DAIPm,VA1-3tentVp1-3tentVtentHtentθnpa ) at the end of systolic were measured.The results of two groups were compared,and the most affected parameters to mild mitralregurgitation were selected.Results Compared with control group,VA3tent was decreased,mitral annulus θnpa and L2DAIPm increased,and the mitral valve leaflets θnpa was independently correlation factor of mild mitral regurgitation.ConclusionsThe mitral annulus geometry to flat in subjects with mild MR,the mitral valve local area is increased in subjects with mild MR,the mitral valve leaflets θnpa is independently correlation factor of mild mitral regurgitation.
