PMID: 11316570Apr 24, 2001Paper

3D reconstruction of the encapsulating contour of arteriovenous malformations for radiosurgery using digital subtraction angiography

International Journal of Radiation Oncology, Biology, Physics
E CosteJ Rousseau

Abstract

Treatment planning for radiosurgery depends on the precise definition of radiation target volumes. For vascular pathologies such as arteriovenous malformations (AVM), the most usual technique remains standard X-ray projection imaging, most often carried out under stereotactic conditions. To further benefit from the advantages of two-dimensional digital subtraction angiography (DSA), the authors have developed a method for determining the three-dimensional shape of arteriovenous malformations from two views. After correction of image intensifier distortion and calibration of both views, the 3D shape of the AVM was determined from two DSA projections using epipolarity geometry. The AVM-encapsulating contour was modeled by triangulation of a stack of almost parallel ellipses. The method was technically validated using artificial targets in a skull phantom. Clinical validation was carried out on 10 patients who were examined using both conventional angiography under stereotactic conditions (SX-ray) and DSA. There was excellent agreement between the artificial target volumes measured with SX-ray and with DSA. The correspondence between AVM volumes found for patients was not as good as with the phantom. The different image characteri...Continue Reading

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Citations

Jan 31, 2014·Translational Stroke Research·Madhavan L RaghavanUNKNOWN International Study of Unruptured Intracranial Aneurysms Investigators
Sep 3, 2013·Journal of Neurointerventional Surgery·Imramsjah M J van der BomAjay K Wakhloo
Feb 16, 2007·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Maximilien VermandelJean Rousseau
Feb 22, 2005·Medical Physics·David W HoldsworthRebecca Fahrig
Oct 31, 2013·Physics in Medicine and Biology·Danilo BabinWilfried Philips

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