Methods (4) Methods (4) substitution (3) pression (3) Swine (3) Pressure (3) Heart valve prosthesis (3) Evaluation (3) Design (3) Aortic valve (3) Animals (3) Design (3) ultrason (2) animal (2) évaluation (2) équipement (2) maladie (2) adulte (2) abords (agglomération) (2) survie (2) Area (2) Area (2) Ultrasonic imaging (2) Echocardiography (2) Survival (2) Prosthesis (2) Human beings (2) Heart--Surgery (2) Heart (2) Feasibility studies (2)