Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Simulation-based evaluation of susceptibility distortion correction methods in diffusion MRI for connectivity analysis
Year:2014
Research Areas
  • Biomedicine,
  • Medical equipment,
  • Engineering,
  • Electronic technology and of the communications
Information
Abstract
Connectivity analysis on diffusion MRI data of the wholebrain suffers from distortions caused by the standard echoplanar imaging acquisition strategies. These images show characteristic geometrical deformations and signal destruction that are an important drawback limiting the success of tractography algorithms. Several retrospective correction techniques are readily available. In this work, we use a digital phantom designed for the evaluation of connectivity pipelines. We subject the phantom to a ?theoretically correct? and plausible deformation that resembles the artifact under investigation. We correct data back, with three standard methodologies (namely fieldmap-based, reversed encoding-based, and registrationbased). Finally, we rank the methods based on their geometrical accuracy, the dropout compensation, and their impact on the resulting connectivity matrices.
International
Si
Congress
IEEE International Symposium on Biomedical Imaging: From Nano to Macro (ISBI 2014)
960
Place
Beijing (China)
Reviewers
Si
ISBN/ISSN
978-1-4673-1959-1
10.1109/ISBI.2014.6867976
Start Date
29/04/2014
End Date
02/05/2014
From page
738
To page
741
Proceedings of IEEE International Symposium on Biomedical Imaging: From Nano to Macro
Participants
  • Autor: Oscar Esteban Sanz-Dranguet (UPM)
  • Autor: Alessandro Daducci (École Polytechnique Fédéral de Lausanne)
  • Autor: Emmanuel Caruyer (University of Pennsylvania)
  • Autor: Kieran O'Brien (University of Geneva)
  • Autor: Maria Jesus Ledesma Carbayo (UPM)
  • Autor: Meritxell Bach-Cuadra (École Polytechnique Fédéral de Lausanne)
  • Autor: Andres de Santos Lleo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Centro o Instituto I+D+i: Centro de tecnología Biomédica CTB
  • Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)