Simulation-based evaluation of susceptibility distortion correction methods in diffusion MRI for connectivity analysis

Details

Serval ID
serval:BIB_65E37F7A5775
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
Simulation-based evaluation of susceptibility distortion correction methods in diffusion MRI for connectivity analysis
Title of the conference
IEEE 11th International Symposium on Biomedical Imaging - From Nano to Macro (ISBI)
Author(s)
Esteban Oscar, Daducci Alessandro, Caruyer Emmanuel, O'Brien Kieran, Carbayo Ledesma Maria J., Bach Cuadra Meritxell, Santos Andres
Address
Beijing, April 29 2014-May 2 2014
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Pages
738 - 741
Language
english
Abstract
Connectivity analysis on diffusion MRI data of the whole- brain suffers from distortions caused by the standard echo- planar 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 registration- based). Finally, we rank the methods based on their geometrical accuracy, the dropout compensation, and their impact on the resulting connectivity matrices.
Keywords
LTS5, Diffusion MRI, Brain connectivity, Distortion correction
Create date
01/07/2014 16:11
Last modification date
12/11/2020 6:23
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