Measurement of left ventricular mass by real-time three-dimensional echocardiography: validation against magnetic resonance and comparison with two-dimensional and m-mode measurements.
Takeuchi M, Nishikage T, Mor-Avi V, Sugeng L, Weinert L, Nakai H, Salgo IS, Gerard O, Lang RM. Measurement of left ventricular mass by real-time three-dimensional echocardiography: validation against magnetic resonance and comparison with two-dimensional and m-mode measurements. J Am Soc Echocardiogr. 2008 Sep; 21(9):1001-5.