title: Complete left ventricular wall motion estimation from cascaded MRI-SPAMM data.
abstract: We present a new paradigm which incorporates multiple sets of tagged MRI data (MRI-SPAMM) acquired in a cascaded fashion in order to estimate the full 3-D motion of the left ventricle (LV) during its entire cardiac cycle. Our technique is based on the extension of the volumetric physics-based deformable models, whose parameters are functions, which can capture the local shape variation of an object with a small number of intuitive parameters. By integrating a cascaded sequence of SPAMM data sets into our modeling technique, we have extended the capability of MRI-SPAMM and have provided an accurate representation of the LV motion from end-diastole to end-diastole to better understand cardiac mechanics.
authors.affiliation: Department of Computer and Information Science, University of Pennsylvania, Philadelphia 19104, USA. jinah@graphics.cis.upenn.edu
authors.forename: J
authors.initials: J
authors.lastname: Park
authors.forename: D N
authors.initials: DN
authors.lastname: Metaxas
authors.forename: L
authors.initials: L
authors.lastname: Axel
mesh_terms: D000465:Algorithms; D002306:Cardiac Volume; D006352:Heart Ventricles / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008955:Models, Cardiovascular; D009200:Myocardial Contraction / Q000502:physiology*; D016276:Ventricular Function