Mitral valve repair is a complex procedure that requires the ability to predict closed valve shape through the examination of an unpressurized, flaccid valve. These procedures typically include the remodeling of the mitral annulus through the insertion of an annuloplasty ring. While simulations could facilitate the planning of the procedure, traditional finite-element models of mitral annuloplasty are too slow to be clinically feasible and have never been validated in tissue. This work presents a fast method for simulating valve closure post-annuloplasty using a mass-spring tissue model and subject-specific valve geometry. Closed valve shape is predicted in less than one second. The results are validated by implanting an annuloplasty ring in an excised porcine heart and comparing simulated to imaged results. Results indicate that not only can mitral annuloplasty be simulated quickly, but also with sub-millimeter accuracy.
Fast Simulation of Mitral Annuloplasty for Surgical PlanningFunctional Imaging and Modeling of the Heart / Neil A. Tenenholtz;Peter E. Hammer;Assunta Fabozzo;Eric N. Feins;Pedro J. del Nido;Robert D. Howe. - STAMPA. - 7945:(2013), pp. 106-113. (Intervento presentato al convegno 7th International Conference on Functional Imaging and Modeling of the Heart (FIMH 2013), tenutosi a London nel 2013) [10.1007/978-3-642-38899-6_13].
Fast Simulation of Mitral Annuloplasty for Surgical PlanningFunctional Imaging and Modeling of the Heart
FABOZZO, ASSUNTA;
2013
Abstract
Mitral valve repair is a complex procedure that requires the ability to predict closed valve shape through the examination of an unpressurized, flaccid valve. These procedures typically include the remodeling of the mitral annulus through the insertion of an annuloplasty ring. While simulations could facilitate the planning of the procedure, traditional finite-element models of mitral annuloplasty are too slow to be clinically feasible and have never been validated in tissue. This work presents a fast method for simulating valve closure post-annuloplasty using a mass-spring tissue model and subject-specific valve geometry. Closed valve shape is predicted in less than one second. The results are validated by implanting an annuloplasty ring in an excised porcine heart and comparing simulated to imaged results. Results indicate that not only can mitral annuloplasty be simulated quickly, but also with sub-millimeter accuracy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
