应用实时三维经食管超声对二尖瓣脱垂患者的瓣叶及瓣环功能的定量评价

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Abstract Objective: To assess the mitral valve(MV) leaflet and annular function quantitatively in patients with mitral valve prolapse(MVP) using real-time three-dimensional transesophageal echocardiography(RT-3DTEE). Methods: RT-3DTEE of the MV was acquired in 53 subjects, including 14 patients with MVP and significant mitral regurgitation(MR)(moderate to severe MR group), 10 patients with MVP but no or mild MR(mild MR group), and 29 control subjects. The 3-dimensional geometry of MV apparatus was measured with dedicated quantification software. Results: Compared with the normal group, MVP group had more reduced MV coaptation reserve, greater MV leaflet reserve. Compared with the mild MR group, moderate to severe MR group had more reduced MV coaptation reserve, greater MV leaflet reserve. The parameter of annular contraction had no significant differences between the mild MR group and the control group, and this parameter in the moderate to severe MR group was significantly reduced compared with the control group. Conclusion: The MV leaflet and annular function can be assessed quantitatively by RT-3DTEE, which can provide evidence for the assessment of MV function and the design of surgery program.

Key words： Mitral valve prolapse Echocardiography, Doppler, color

Received: 15 June 2015

PACS:	Ｒ542.51
	Ｒ540.45

Corresponding Authors: CHEN Xin

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	ZHANG Hui-hui
	CHEN Xin
	CUI Yi-jing
	ZHOU Wen-yan
	YANG Jun

Cite this article:

ZHANG Hui-hui,CHEN Xin,CUI Yi-jing, et al. Quantitative assessment of mitral valve leaflet and annular function in patients with mitral valve prolapse using#br# real-time three-dimensional transesophageal echocardiography[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(2): 101-105.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2016/V27/I2/101

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