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Publication Detail
Multiresolution, model-based segmentation of MR angiograms
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Summers PE, Bhalerao AH, Hawkes DJ
  • Publication date:
    11/1997
  • Pagination:
    950, 957
  • Journal:
    J MAGN RESON IMAGING
  • Volume:
    7
  • Issue:
    053-1807 (Print), 6
  • Print ISSN:
    1053-1807
  • Keywords:
    blood, Humans, London, Magnetic Resonance Angiography, Models, Structural
  • Addresses:
    Division of Radiological Sciences, United Medical and Dental Schools, Guy's and St. Thomas' Hospital Trust, London, England. p.summers@umds.ac.uk
  • Notes:
    DA - 19980205
Abstract
During the last decade, the quality of MR angiograms has risen substantially and their clinical utility has been demonstrated progressively. This acceptance has created a need for tools with which to summarize and display the information available. We have used a model-based segmentation technique to extract vascular morphology and local flow parameters from phase contrast MR angiograms. A multiresolution data structure is used as the basis of recursive decision-making to identify regions of blood flow. The resulting data representation allows more efficient data handling in subsequent processing and visualization and is directly applicable to the creation of a connected graph model of vascular regions. We describe this flow feature extraction algorithm and demonstrate the utility of the results
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