Title :
Bayesian contour estimation of the left ventricle in ultrasound images of the heart
Author :
Papadopoulos, Ioannis ; Strintzis, Michael G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece
Abstract :
The problem of the left ventricle contour estimation in ultrasound heart images is considered. A Bayesian approach to the problem is presented. The left ventricle contour is modelled as one-dimensional noncausal Gauss-Markov random field. The algorithm estimates the contour by computing the statistical model parameters of the inside and the outside of the left ventricle and by minimizing an energy function that describes the contour. The result is an algorithm based on MAP criteria. The method exhibits robustness against the poor quality of the ultrasound images
Keywords :
Bayes methods; echocardiography; edge detection; medical image processing; modelling; Bayesian contour estimation; MAP criteria; algorithm; energy function minimization; heart ultrasound images; left ventricle; medical diagnostic imaging; one-dimensional noncausal Gauss-Markov random field; poor quality ultrasound images; statistical model parameters; Bayesian methods; Bismuth; Gaussian processes; Graphics; Heart; Markov random fields; Probes; Robustness; Senior members; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575265