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Characterization of 3-D coronary tree motion from MSCT angiography.

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Yang, Guanyu | Zhou, Jian | Boulmier, Dominique | Garcia, Marie-Paule | Luo, Limin, M. | Toumoulin, Christine

Edité par CCSD ; Institute of Electrical and Electronics Engineers -

International audience. This paper describes a method for the characterization of coronary artery motion using multislice computed tomography (MSCT) volume sequences. Coronary trees are first extracted by a spatial vessel tracking method in each volume of MSCT sequence. A point-based matching algorithm, with feature landmarks constraint, is then applied to match the 3-D extracted centerlines between two consecutive instants over a complete cardiac cycle. The transformation functions and correspondence matrices are estimated simultaneously, and allow deformable fitting of the vessels over the volume series. Either point-based or branch-based motion features can be derived. Experiments have been conducted in order to evaluate the performance of the method with a matching error analysis.

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