Difference between revisions of "Projects:TopologyCorrectionNonSeparatingLoops"

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'''Project''': Geometrically Accurate Topology-Correction of Cortical Surfaces Using Nonseparating Loops
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Back to [[Algorithm:MGH|MGH Algorithms]]
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= Geometrically-Accurate Topology-Correction of Cortical Surfaces using Non-Separating Loops =
  
'''Team''': Florent Ségonne, Jenni Pacheco, and Bruce Fischl
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= Description =
  
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''Status'': Prototype
  
'''Status''': Prototype
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''Submitted'': IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 26, NO. 4, APRIL 2007
  
'''Submitted''': IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 26, NO. 4, APRIL 2007
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''Abstract'': In this paper, we focus on the retrospective topology correction of surfaces. We propose a technique to accurately correct the spherical topology of cortical surfaces. Specifically,we construct a mapping from the original surface onto the sphere to detect topological defects as minimal nonhomeomorphic regions. The topology of each defect is then corrected by opening and sealing the surface along a set of nonseparating loops that are selected in a Bayesian framework. The proposed method is a wholly self-contained topology correction algorithm, which determines geometrically accurate, topologically correct solutions based on the magnetic resonance imaging (MRI) intensity profile and the expected local curvature. Applied to real data, our method provides topological corrections similar to those made by a trained operator.
  
'''Abstract''': In this paper, we focus on the retrospective topology correction of surfaces. We propose a technique to accurately correct the spherical topology of cortical surfaces. Specifically,we construct a mapping from the original surface onto the sphere to detect topological defects as minimal nonhomeomorphic regions. The topology of each defect is then corrected by opening and sealing the surface along a set of nonseparating loops that are selected in a Bayesian framework. The proposed method is a wholly self-contained topology correction algorithm, which determines geometrically accurate, topologically correct solutions based on the magnetic resonance imaging (MRI) intensity profile and the expected local curvature. Applied to real data, our method provides topological corrections similar to those made by a trained operator.
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= Key Investigators =
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* MGH Algorithms: Florent Ségonne, Jenni Pacheco, and Bruce Fischl
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= Publications =
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''In Print''
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* [http://www.na-mic.org/publications/pages/display?search=TopologyCorrectionNonSeparatingLoops&submit=Search&words=all&title=checked&keywords=checked&authors=checked&abstract=checked&searchbytag=checked&sponsors=checked| NA-MIC Publications Database on Topology Correction]
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[[Category: MRI]]

Latest revision as of 20:00, 11 May 2010

Home < Projects:TopologyCorrectionNonSeparatingLoops
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Geometrically-Accurate Topology-Correction of Cortical Surfaces using Non-Separating Loops

Description

Status: Prototype

Submitted: IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 26, NO. 4, APRIL 2007

Abstract: In this paper, we focus on the retrospective topology correction of surfaces. We propose a technique to accurately correct the spherical topology of cortical surfaces. Specifically,we construct a mapping from the original surface onto the sphere to detect topological defects as minimal nonhomeomorphic regions. The topology of each defect is then corrected by opening and sealing the surface along a set of nonseparating loops that are selected in a Bayesian framework. The proposed method is a wholly self-contained topology correction algorithm, which determines geometrically accurate, topologically correct solutions based on the magnetic resonance imaging (MRI) intensity profile and the expected local curvature. Applied to real data, our method provides topological corrections similar to those made by a trained operator.

Key Investigators

  • MGH Algorithms: Florent Ségonne, Jenni Pacheco, and Bruce Fischl

Publications

In Print