1057 Changes in deformation in asymptomatic patients with isolated severe mitral regurgitation detected by strain rate imaging

Abstract

s S179 Eur J Echocardiography Abstracts Supplement, December 2006 ejection fraction (EF), sphericity index (SI), the wall motion score index (WMSI).The quantitative assessment of MR was performed using echocardiography by PISA method (regurgitant volume-RV and effective regurgitant orifice areaERO were calculated) and CMR by using velocity encoded imaging by subtracting left ventricle stroke volume and aortic flow. Results: No correlations between the mitral deformation indices, nor the global left ventricle remodeling and severity of MR expressed as ERO and RV were established in the analysis of any parameters obtained in TTE. Upon using CMR a good correlation was observed between RV and end-diastolic mitral annular area (p<0.01; r=0.73), mitral annulus diameter anterior mitral leaflet lenght ratio (p<0.01; r=0.72), coaptation height (p<0.01; r=0.69), respectively, and a weaker correlation between RV and end-systolic mitral annular area (p<0.1; r=0.49). Upon analysing left ventricle geometry parameters the strongest correlation was observed between RV and EDV/BSA (p<0.1; r=0.54). Conclusions: 1. In mild and moderate MR neither mitral deformation indices, nor global left ventricle remodeling, as assessed by echocardiographic method, correlated with quantitative parameters of MR. 2. CMRI appears to be a more accurate and sensitive method in assessing left ventricle remodeling and deformation of mitral valve than echocardiography.