8 May 1995 Blood vessel reconstruction from a limited number of cone-beam projections: application to cerebral blood vessel projections and to an excised animal heart
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Abstract
Visual assessment of arterial lesions from angiograms is subject to considerable inter- and intra-observer variability. To overcome these limitations, we are developing a method to perform reconstruction of vascular cross-sectional images from a limited number of x-ray angiographic cone-beam projections. The projection data are simplified by identifying blood vessels in each angiogram and removing signals due to other structures. The reconstruction is performed using the method of simulated annealing. An application of this approach to projections of cerebral vessels obtained from segmented CT slices of a cadaver injected with contrast agent are shown. We have also reconstructed an excised animal heart in order to test our method under more realistic image acquisition conditions including scatter, beam hardening, and variations in background signal.
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Normand Robert, Normand Robert, Francoise Peyrin, Francoise Peyrin, Martin Joel Yaffe, Martin Joel Yaffe, } "Blood vessel reconstruction from a limited number of cone-beam projections: application to cerebral blood vessel projections and to an excised animal heart", Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); doi: 10.1117/12.208348; https://doi.org/10.1117/12.208348
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