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KMID : 0858520160200010075
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Journal of the Korean Society of Magnetic Resonance in Medicine
2016 Volume.20 No. 1 p.75 ~ p.79
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Detection of Perivalvular Abscess with Late Gadolinium-Enhanced MR Imaging in a Patient with Infective Endocarditis
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Ryu Seong-Yoon
Kim Hae-Jin
Kim Sung-Mok
Park Sung-Ji
Choe Yeon-Hyeon
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Abstract
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We report a case of perivalvular abscess in a 66-year-old man with infective endocarditis, diagnosed by late gadolinium-enhanced (LGE) cardiovascular magnetic resonance (CMR) imaging. No clinical features suspicious of infective endocarditis were noted, however, transthoracic echocardiography revealed non-specific echogenic focal wall thickening at mitral-aortic intervalvular fibrosa. Perivalvular abscess in the aortic valve was demonstrated as focal wall thickening between the anterior mitral leaflet and the non-coronary cusp of the aortic valve with peripheral enhancement and central low signal intensity on LGE CMR imaging. Other features suggestive of infective endocarditis, such as neither vegetation nor valvular perforation were present. The perivalvular abscess did not grow after intensive intravenous antibiotics therapy, and the patient was discharged without surgical treatment. CMR with LGE provided an early accurate diagnosis of perivalvular abscess. The diagnosis of perivalvular abscess using LGE CMR imaging was not previously reported in Korea.
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KEYWORD
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Infective endocarditis, Perivalvular abscess, Late gadolinium enhancement, Cardiovascular magnetic resonance imaging
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