Suivi temporel 3D de vaisseaux coronaires dans les projections rayons X

Emmanuelle Poulain 1, 2 Grégoire Malandain 1 Régis Vaillant 2
1 MORPHEME - Morphologie et Images
CRISAM - Inria Sophia Antipolis - Méditerranée , IBV - Institut de Biologie Valrose : U1091, Laboratoire I3S - SIS - Signal, Images et Systèmes
Abstract : Fusing pre-operative CT angiography with per-operative angiographic and fluoroscopic images is considered by physicians as a potentially useful tool for improved guidance. We propose a 3D/2D temporal tracking of one coronary vessel, based on a spline deformation, using pairings with a controlled 2D stretching along the paired curves and a preservation of the length of the 3D curve. Experiments were conducted on a database of 10 vessels from 5 distinct patients, with dedicated metrics assessing both the global registration and the local coherency of the position along the vessel. The proposed results demonstrate the efficiency of the proposed method, with an average standard deviation of 2 mm for the localization of landmarks.
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Emmanuelle Poulain, Grégoire Malandain, Régis Vaillant. Suivi temporel 3D de vaisseaux coronaires dans les projections rayons X. GRETSI, Sep 2017, Juan-Les-Pins, France. ⟨hal-01544989⟩

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