Fast and automatic LV mass calculation from echocardiographic images via B-spline snake model and markov random fields
Mahdi Marsousi, Armin Eftekhari, Javad Alirezaie, А. А. Кочарян, Ershad Sharifahmadian · 2009
Left ventricular (LV) mass has several important diagnostic and indicative implications. In this paper, a fast and accurate technique for detection of inner and outer boundaries of LV and, consequently, calculation of LV mass from apical 4-chamber echocardiographic images is presented. For detection of the inner boundary, a modified B-spline snake is proposed, which relies merely on image intensity and obviates the need for computationally-demanding image forces. The outer boundary is then obtained using a Markov random fields model in the neighborhood of the estimated inner border. Experimental validation of the proposed technique demonstrates remarkable improvement over conventional algorithms.