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Automatically finding optimal working projections for the endovascular coiling of intracranical aneurysms

  • Dale Wilson
  • J. Alison Noble
  • Duncan Royston
  • James Byrne
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1496)

Abstract

The endovascular coil embolisation of intracranial saccular aneurysms requires a set of specific X-ray images with which to view the aneurysm during coiling. These two-dimensional images, known asworking projectionsshould be optimal for measuring the aneurysm sac diameter, inserting the first coil, and checking coil overhang into the surrounding vessels. At present the gantry angle that produces these images is found by the radiologist by trial and error. In this paper we present a method for automatically finding the angles that will produce the desired X-ray projections. Our method consists of four steps: (1) segmenting the vasculature from three-dimensional angiographic data; (2) locating the aneurysm neck; (3) labelling the aneurysm sac; and (4) determining the optimal angle for viewing the aneurysm during coiling. We discuss details of the algorithm steps and present the results of the algorithm applied to one synthetic and two pathological examples.

Keywords

Magnetic Resonance Angiography Artery Aneurysm Intracranial Aneurysm Parent Artery Intracranical Aneurysm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Dale Wilson
    • 1
  • J. Alison Noble
    • 1
  • Duncan Royston
    • 2
  • James Byrne
    • 2
  1. 1.Dept. of Engineering ScienceUniversity of OxfordOxford
  2. 2.Dept. of NeuroradiologyRadcliffe InfirmaryOxford

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