Definition of a 4D continuous polar transformation for the tracking and the analysis of LV motion

Jérôme Declerck 1 Jacques Feldmar 1 Nicholas Ayache 1, *
* Auteur correspondant
1 EPIDAURE - Medical imaging and robotics
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : A 4D polar transformation is defined to describe the left ventricle (LV) motion and a method is presented to estimate it from sequences of 3D images. The transformation is defined in 3D-planispheric coordinates by a small number of parameters involved in a set of simple linear equations. It is continuous and regular in time and space, periodicity in time can be imposed. The local motion can be easily decomposed into a few canonical motions (centripetal contraction, rotation around the long-axis, elevation). To recover the motion from original data, the 4D polar transformation is calculated using an adaptation of the Iterative Closest Point algorithm. We present the mathematical framework and a demonstration of its feasability on a gated SPECT sequence.
Type de document :
Communication dans un congrès
Jocelyne Troccaz and Eric Grimson and Ralph Mösges. First Joint Conference Computer Vision, Virtual Reality and Robotics in Medicine and Medical Robotics and Computer-Assisted Surgery - CVRMed-MRCAS' 97, Mar 1997, Grenoble, France. Springer, 1205, pp.33-42, 1997, Lecture Notes in Computer Science. 〈10.1007/BFb0029222〉
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Soumis le : vendredi 19 août 2011 - 18:06:44
Dernière modification le : samedi 27 janvier 2018 - 01:30:59

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Jérôme Declerck, Jacques Feldmar, Nicholas Ayache. Definition of a 4D continuous polar transformation for the tracking and the analysis of LV motion. Jocelyne Troccaz and Eric Grimson and Ralph Mösges. First Joint Conference Computer Vision, Virtual Reality and Robotics in Medicine and Medical Robotics and Computer-Assisted Surgery - CVRMed-MRCAS' 97, Mar 1997, Grenoble, France. Springer, 1205, pp.33-42, 1997, Lecture Notes in Computer Science. 〈10.1007/BFb0029222〉. 〈inria-00615691〉

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