Title :
Fast and automatic LV mass calculation from echocardiographic images via B-spline snake model and markov random fields
Author :
Marsousi, Mahdi ; Eftekhari, Armin ; Alirezaie, Javad ; Kocharian, Armen ; Sharifahmadian, Ershad
Author_Institution :
Dept. of Biomed. Eng., K. N. Toosi Univ. of Technol., Tehran, Iran
Abstract :
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.
Keywords :
Markov processes; echocardiography; mass measurement; B-spline snake model; LV mass calculation; Markov random fields; echocardiographic images; left ventricular mass; Algorithms; Automation; Computational Biology; Computer Simulation; Echocardiography; Endocardium; Heart Ventricles; Humans; Image Processing, Computer-Assisted; Markov Chains; Models, Cardiovascular; Pattern Recognition, Automated; Reproducibility of Results; Signal Processing, Computer-Assisted; Software;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5333702