Christophe Blondel et al 2004 Phys. Med. Biol. 49 2197 doi:10.1088/0031-9155/49/11/006
Christophe Blondel1,2, Régis Vaillant2, Grégoire Malandain1 and Nicholas Ayache1
Show affiliationsIn this paper, we present a new method to perform 3D tomographic reconstruction of coronary arteries from cone-beam rotational x-ray angiography acquisitions. We take advantage of the precomputation of the coronary artery motion, modelled as a parametric 4D motion field. Contrary to data gating or data triggering approaches, we homogeneously use all available frames, independently of the cardiac phase. In addition, we artificially subtract angiograms from their background structures. Our method significantly improves the reconstruction, by removing both motion and background artefacts. We have successfully tested it on the datasets from a synthetic phantom and 10 patients.
Issue 11 (7 June 2004)
Received 1 October 2003
Published 19 May 2004
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