Patient-Specific Modeling and Quantification of the Aortic and Mitral Valves From 4-D Cardiac CT and TEE

As decisions in cardiology increasingly rely on non-invasive methods, fast and precise image processing tools have become a crucial component of the analysis workflow. To the best of our knowledge, we propose the first automatic system for patient-specific modeling and quantification of the left heart valves, which operates on cardiac computed tomography (CT) and transesophageal echocardiogram (TEE) data. Robust algorithms, based on recent advances in discriminative learning, are used to estimate patient-specific parameters from sequences of volumes covering an entire cardiac cycle. A novel physiological model of the aortic and mitral valves is introduced, which captures complex morphologic, dynamic and pathologic variations. This holistic representation is hierarchically defined on straction levels: global location and rigid motion model, non-rigid landmark motion model and comprehensive aorticmitral model. First we compute the rough location and cardiac motion applying marginal space...

• Type: Journal
• Year: 2010
• Where: TMI
• Authors: Razvan Ioan Ionasec, Ingmar Voigt, Bogdan Georgescu, Yang Wang, Helene Houle, Fernando Vega Higuera, Nassir Navab, Dorin Comaniciu
• Keywords: Cardiac, Management, Model, Motion Model, TMI 2010