Computerized Medical Imaging and Graphics
Volume 27, Issue 6 , Pages 437-446, November 2003

Local force model for cardiac dynamics analysis from volumetric image sequences

  • Li Fan

      Affiliations

    • HanWorld International Inc., Chicago, IL 60615, USA
    • Corresponding Author InformationCorresponding author. Address: 6 Muirhead Ct., Belle Mead, NJ 08502, USA. Tel.: +1-908-281-9956; fax: +1-609-799-1545
    • ,
  • Jose G. Tamez-Pena

      Affiliations

    • Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627, USA
    • ,
  • Chang Wen Chen

      Affiliations

    • Department of Electrical Engineering, University of Missouri-Columbia, Columbia, MO 65211, USA

Received 9 June 1999; received in revised form 11 January 2002; accepted 2 April 2003.

Abstract 

We propose a local force model based on the kinetics of the left ventricle (LV) surfaces to characterize the complex nonrigid motion that the heart undergoes. The left ventricle motion is analyzed in a coarse-to-fine fashion. First, global motion and deformation are analyzed and compensated with hierarchical surface modeling. Then, we propose a physics-based model of local deformation derived from the dynamics of independent point masses driven by local external force. Experimental results show that the ensembles of the estimated point mass trajectories match well with the realistic left ventricle surface dynamics.

Keywords:  Motion estimation, Cardiac images, Dynamic analysis, Surface modeling

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PII: S0895-6111(03)00037-5

doi:10.1016/S0895-6111(03)00037-5

Computerized Medical Imaging and Graphics
Volume 27, Issue 6 , Pages 437-446, November 2003

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