title: Left ventricular endocardium tracking by fusion of biomechanical and deformable models.
abstract: This paper presents a framework for tracking left ventricular (LV) endocardium through 2D echocardiography image sequence. The framework is based on fusion of biomechanical (BM) model of the heart with the parametric deformable model. The BM model constitutive equation consists of passive and active strain energy functions. The deformations of the LV are obtained by solving the constitutive equations using ABAQUS FEM in each frame in the cardiac cycle. The strain energy functions are defined in two user subroutines for active and passive phases. Average fusion technique is used to fuse the BM and deformable model contours. Experimental results are conducted to verify the detected contours and the results are evaluated by comparing them to a created gold standard. The results and the evaluation proved that the framework has the tremendous potential to track and segment the LV through the whole cardiac cycle.
authors.affiliation: Electrical and Computer Engineering, Dalhousie University, 1360 Barrington Street, Halifax, NS, Canada B3J 2X4.
authors.forename: Hussin
authors.identifier: 0000-0001-8849-9309
authors.initials: H
authors.lastname: Ketout
authors.affiliation: Electrical and Computer Engineering, Dalhousie University, 1360 Barrington Street, Halifax, NS, Canada B3J 2X4.
authors.forename: Jason
authors.initials: J
authors.lastname: Gu
mesh_terms: D000465:Algorithms; D001696:Biomechanical Phenomena; D004452:Echocardiography / Q000379:methods; D006321:Heart / Q000502:physiology; D006352:Heart Ventricles / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008955:Models, Cardiovascular; D009038:Motion; D012984:Software