JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Mar 2010
Multicenter StudyReproducibility of proximal isovelocity surface area, vena contracta, and regurgitant jet area for assessment of mitral regurgitation severity.
The aim of this study was to evaluate the interobserver agreement of proximal isovelocity surface area (PISA) and vena contracta (VC) for differentiating severe from nonsevere mitral regurgitation (MR). ⋯ The VC and PISA measurements for distinction of severe versus nonsevere MR are only modestly reliable and associated with suboptimal interobserver agreement. The presence of an identifiable effective regurgitant orifice improves reproducibility of VC and a central regurgitant jet predicts substantial agreement among multiple observers of PISA assessment.
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JACC Cardiovasc Imaging · Mar 2010
Multicenter StudyThe impact of obesity on the left ventricle: the Multi-Ethnic Study of Atherosclerosis (MESA).
The purpose of this study was to evaluate the relationship of left ventricular (LV) remodeling assessed by cardiac magnetic resonance to various measures of obesity in a large population-based study. ⋯ Obesity was associated with concentric LV remodeling without change in ejection fraction in a large, multiethnic cohort study.