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Extent of late gadolinium enhancement in cardiovascular magnetic resonance and its relation with left ventricular diastolic function in patients with hypertrophic cardiomyopathy

Authors
 Dae-Sik Choi  ;  Jong-Won Ha  ;  Byoungwook Choi  ;  Woo-In Yang  ;  Eui-Young Choi  ;  Se-Joong Rim  ;  Namsik Chung 
Citation
 CIRCULATION JOURNAL, Vol.72(9) : 1449-1453, 2008 
Journal Title
 CIRCULATION JOURNAL 
ISSN
 1346-9843 
Issue Date
2008
MeSH
Adult ; Age Factors ; Aged ; Cardiomyopathy, Hypertrophic/diagnostic imaging ; Cardiomyopathy, Hypertrophic/physiopathology* ; Diastole* ; Gadolinium* ; Humans ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Mitral Valve/diagnostic imaging ; Mitral Valve/physiopathology ; Mitral Valve Insufficiency/diagnostic imaging ; Mitral Valve Insufficiency/physiopathology ; Radiography ; Stroke Volume* ; Ventricular Function, Left*
Keywords
Cardiovascular magnetic resonance ; Diastolic function ; Hypertrophic cardiomyopathy ; Late gadolinium enhancement
Abstract
BACKGROUND: The aim of this study was to determine whether the extent of late gadolinium enhancement (LGE) is associated with left ventricular (LV) function in patients with hypertrophic cardiomyopathy (HCM). METHODS AND RESULTS: Forty-seven patients with HCM (35 males, mean age 53+/-14, 14 with LV outflow tract obstruction) underwent cardiovascular magnetic resonance imaging and comprehensive echocardiographic examination. The extent of LGE was expressed as LGE volume and LGE percentage of LV volume. LGE was present in 40 (85.1%) of 47 patients. The mean LGE volume was 36.5+/-36 cm3, and the mean percentage of LV volume was 16.4+/-17%. Following adjustment for age, mitral regurgitation and LV mass index, LGE volume and percentage positively correlated with the left atrial volume index (r=0.388, p=0.009 and r=0.425, p=0.004, respectively). However, there was no significant association of functional class, ejection fraction, mitral flow, or annular velocities with the extent of LGE. CONCLUSIONS: In HCM patients, the extent of LGE positively correlated with the left atrial volume index, a surrogate marker of chronic diastolic burden. These findings suggest that myocardial scarring may be a pathologic substrate for chronic diastolic dysfunction in patients with HCM
Files in This Item:
T200800166.pdf Download
DOI
18724020
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Yang, Woo In(양우인)
Rim, Se Joong(임세중) ORCID logo https://orcid.org/0000-0002-7631-5581
Chung, Nam Sik(정남식)
Choi, Dae Sik(최대식)
Choi, Byoung Wook(최병욱) ORCID logo https://orcid.org/0000-0002-8873-5444
Choi, Eui Young(최의영) ORCID logo https://orcid.org/0000-0003-3732-0190
Ha, Jong Won(하종원) ORCID logo https://orcid.org/0000-0002-8260-2958
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106304
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