Statistical analysis of the human cardiac fiber architecture from DT-MRI

  • Authors:
  • Herve Lombaert;Jean-Marc Peyrat;Pierre Croisille;Stanislas Rapacchi;Laurent Fanton;Patrick Clarysse;Herve Delingette;Nicholas Ayache

  • Affiliations:
  • École Polytechnique de Montréal, Canada and Asclepios, INRIA Sophia-Antipolis, France;Siemens Molecular Imaging, Oxford, UK;CREATIS, Université de Lyon, France;CREATIS, Université de Lyon, France;Institut Universitaire de Médecine Légale, Université de Lyon, France;CREATIS, Université de Lyon, France;Asclepios, INRIA Sophia-Antipolis, France;Asclepios, INRIA Sophia-Antipolis, France

  • Venue:
  • FIMH'11 Proceedings of the 6th international conference on Functional imaging and modeling of the heart
  • Year:
  • 2011

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Abstract

A statistical atlas of the cardiac fiber architecture is built for the first time with a human dataset of 10 healthy ex vivo hearts acquired using DT-MRI. The atlas is constructed using an efficient semiautomated method where limited interactions are only required to segment the myocardium. All hearts are registered automatically by an efficient and robust non linear registration method. The statistical atlas gives a better understanding of the human cardiac fiber architecture. The study on the global variability of the human cardiac fiber architecture reveals that the fiber orientation is more stable than the laminar sheet orientation. The variability is also consistent across the left ventricular AHA segments. Moreover this atlas could be used for cardiac electromechanical modeling as well as a basis for more precise extrapolation models, essential for in vivo cardiac DT-MRI acquisition.