title: Three-dimensional systolic kinematics of the right ventricle.
abstract: The right ventricle (RV) of the heart is responsible for pumping blood to the lungs. Its kinematics are not as well understood as that of the left ventricle (LV) due to its thin wall and asymmetric geometry. In this study, the combination of tagged MRI and three-dimensional (3-D) image-processing techniques was used to reconstruct 3-D RV-LV motion and deformation. The reconstructed models were used to quantify the 3-D global and local deformation of the ventricles in a set of normal subjects. When compared with the LV, the RV exhibited a similar twisting pattern, a more longitudinal strain pattern, and a greater amount of displacement.
authors.affiliation: Children's Hospital, Dept. of Cardiology, 300 Longwood Ave., Bader-2, Boston, MA 02115, USA. idith.haber@tch.harvard.edu
authors.forename: Idith
authors.initials: I
authors.lastname: Haber
authors.forename: Dimitris N
authors.initials: DN
authors.lastname: Metaxas
authors.forename: Tal
authors.initials: T
authors.lastname: Geva
authors.forename: Leon
authors.initials: L
authors.lastname: Axel
mesh_terms: D000293:Adolescent; D000328:Adult; D000465:Algorithms; D001696:Biomechanical Phenomena; D003627:Data Interpretation, Statistical; D005260:Female; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology*; D006346:Heart Septum / Q000033:anatomy & histology / Q000502:physiology; D006352:Heart Ventricles / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D016276:Ventricular Function; D016278:Ventricular Function, Right / Q000502:physiology*