NDLI: Quantitative Assessment of Mitral Apparatus Geometry Using Dual-Source Computed Tomography in Mitral Regurgitation.

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Quantitative Assessment of Mitral Apparatus Geometry Using Dual-Source Computed Tomography in Mitral Regurgitation.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zhang, Lingxuezi Qiu, Junwei Yu, Linwei Chen, Sun Sun, Kun Yao, Liping
Description	Author Affiliation: Zhang L ( Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University.)
Abstract	To quantitatively assess the geometric changes in mitral valve apparatus in mitral regurgitation (MR) by dualsource computed tomography (DSCT) and to analyze its impact on MR.The study subjects consisted of 20 controls, 20 patients with mild MR, and 30 patients with moderate to severe MR, all of whom underwent DSCT. The geometric parameters of the mitral valve were measured by CT and compared among the 3 groups. The correlations between DSCT measurements and MR severity were also analyzed.As regurgitation worsened, our results showed progressive enlargements of the mitral annular area, anteroposterior diameter, and mitral valve tenting area at the central level. Moreover, a higher mitral valve sphericity index and longer distance between the heads of the papillary muscles reflected a more outward displacement of the papillary muscles. The mitral annular area and tenting area at the central level had strong correlations with regurgitation severity.DSCT is available to quantitatively assess mitral valve morphology and provide additional information regarding its geometry. The mitral annular area and tenting area at the central level were the strongest determinants of MR severity.
File Format	HTM / HTML
ISSN	13492365
e-ISSN	13493299
Journal	International Heart Journal
Issue Number	4
Volume Number	56
Language	English
Publisher	International Heart Journal Association
Publisher Date	2015-01-01
Publisher Place	Japan
Access Restriction	Open
Subject Keyword	Discipline Cardiology Mitral Valve Insufficiency Mitral Valve Papillary Muscles Stroke Volume Ventricular Dysfunction, Left Dimensional Measurement Accuracy Pathology Physiopathology Diagnosis Prognosis Reproducibility Of Results Severity Of Illness Index Statistics As Topic Tomography, X-ray Computed Etiology Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cardiology and Cardiovascular Medicine

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