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Validation by the HARP method of a new algorithm to assess left ventricular deformation on standard cine-MRI

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5 Author(s)
Chenoune, Y. ; Lab. Images, Signaux et Systemes Intelligents, Univ. Paris XII, Creteil ; Delechelle, E. ; Petit, E. ; Garot, J.
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We present an original algorithm to assess the deformations of the left ventricle on standard cardiac cine-MRI rather than tagged-MRI. Our results are validated by comparison with results derived from tagged image sequences that are analysed by the harmonic phase MRI (HARP MRI) method. First, a segmentation process, based on a level set method is applied on a 2D+t dataset of MR images to detect endocardial contours. Second, the successive segmented contours are matched using a rigid registration. We then apply a morphing process implemented with a level set approach to track the position of points belonging to the endocardial contours. Finally, local measurements of myocardial deformations are derived from the previously determined matched contours

Published in:

Computers in Cardiology, 2005

Date of Conference:

25-28 Sept. 2005