2012 Fiscal Year Final Research Report
Mechanistic analysis of mitral regurgitation by mitral valve complex digital imaging using three-dimensional echocardiography
| Project/Area Number |
22500447
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Kawasaki Medical School |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Kiyoshi 川崎医科大学, 医学部, 教授 (60322583)
NEISHI Yoji 川崎医科大学, 医学部, 講師 (80319946)
OKURA Hiroyuki 川崎医科大学, 医学部, 准教授 (30425136)
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| Co-Investigator(Renkei-kenkyūsha) |
OGASAWARA Yashuo 川崎医科大学, 医学部, 准教授 (10152365)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 三次元心エコー図法 / 心臓超音波 / 僧帽弁逆流 / 経食道心エコー図法 |
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| Research Abstract |
The aim of the study was to explore the mechanism of functional mitral regurgitation(FMR) in patients with dilated and depressed left ventricle by three-dimensional transesophageal echocardiography. In the group of more than moderate FMR, the positional relationship of the mitral valve complex, mitral annulus, and papillary muscle revealed diversity. The tethering and the tenting length have been considered to be the most important predictor of FMR; however, there was no difference in the magnitude of the tenting and tethering length, we found mitral valve annulus systolic dilatation to be the powerful predictor of FMR.
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