[Three-dimensional echocardiography in assessment of left ventricular myocardial mass: comparison of the results of one-dimensional, two-dimensional echocardiography and MR tomography].

AIM: To compare different techniques of calculation of left ventricular myocardial mass (LVMM) by one-, two- and three-dimentional echocardiography (EchoCG) and by MRT. MATERIAL AND METHODS: We calculated LVMM by formulas Penn-cub and modified ASE in one-, two- and three-dimentional EchoCG regimes and MRT; evaluated structural-geometrical characteristics of the left ventricle at various stages of hypertension in 53 hypertensive patients (42 males and 11 females). RESULTS: Mean LVMM values calculated according to two formulas in one-dimentional regime did not differ significantly but were higher than in two- and three-dimentional regimes. LVMM value according to three-dimentional EchoCG was closer to the results of the summation estimation in MRT. CONCLUSION: Conventional EchoCG methods of LVMM calculation in M-regime (Penn-cub, ASE) overestimate the results. Most compatible with three-dimentional EchoCG results are those of EchoCG in two-dimentional regime (area-length).