What question did this study set out to answer?

To develop and validate an integrated retrospective framework for correcting eddy current-induced distortions, susceptibility artifacts, and subject movement in diffusion magnetic resonance imaging.

October 24, 2015NeuroImageOpen Access

An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging

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To develop and validate an integrated retrospective framework for correcting eddy current-induced distortions, susceptibility artifacts, and subject movement in diffusion magnetic resonance imaging.
Designed a registration framework that matches individual diffusion volumes to a model-free prediction, accommodating high b-value data with variable contrast.
Integrated susceptibility-induced and eddy current-induced field calculations to account for differential field interactions during subject motion across 3T and 7T MRI scanners.
Demonstrated that traditional linear eddy current models are inadequate for high spatial and angular resolution data, whereas higher-order models achieve significantly better correction.
Successfully integrated the methodology into widespread data-processing pipelines for major imaging initiatives, including the Human Connectome Project and UK Biobank.

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Implication

Methodological study demonstrates retrospective correction of motion and eddy currents in diffusion MRI, indicating improved structural accuracy in high-resolution neuroimaging.

Cite This Study

Andersson et al. (2015) studied this question.

synapsesocial.com/papers/69cab3f5741250c02563991e https://doi.org/10.1016/j.neuroimage.2015.10.019

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Implication

Methodological study demonstrates retrospective correction of motion and eddy currents in diffusion MRI, indicating improved structural accuracy in high-resolution neuroimaging.

An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging

Key Points

Discussion

Implication

Cite This Study

An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging

Key Points

Discussion

Implication

Cite This Study

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