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A Near-Incompressible Poly-Affine Motion Model for Cardiac Function Analysis
Abstract : Understanding the motion of the heart through the cardiac cycle can give useful insight for a range of different pathologies. In par- ticular, quantifying regional cardiac motion can help clinicians to better determine cardiac function by identifying regions of thickened, ischemic or infarcted tissue. In this work we propose a method for cardiac motion analysis to track the deformation of the left ventricle at a regional level. This method estimates the affine motion of distinct regions of the my- ocardium using a near incompressible non-rigid registration algorithm based on the Demon's optical flow approach. The global motion over the ventricle is computed by a smooth fusion of the deformation in each seg- ment using an anatomically aware poly-affine model for the heart. We apply the proposed method to a data-set of 10 volunteers. The results in- dicate that we are able to extract reasonably realistic deformation fields parametrised by a significantly reduced number of parameters compared to voxel-wise methods, which better enables for statistical analyses of the motion.
https://hal.inria.fr/hal-00813852
Contributor : Project-Team Asclepios <>
Submitted on : Tuesday, April 16, 2013 - 11:18:56 AM
Last modification on : Monday, August 31, 2020 - 1:06:02 PM
Contributor : Project-Team Asclepios <>
Submitted on : Tuesday, April 16, 2013 - 11:18:56 AM
Last modification on : Monday, August 31, 2020 - 1:06:02 PM
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