Susceptibility distortion correction for fMRI

TY - CHAP

T1 - Susceptibility distortion correction for fMRI

AU - Joue, Gina

AU - Sommer, Tobias

AU - Mohammadi, Siawoosh

PY - 2018

Y1 - 2018

N2 - Multiband echo planar imaging (EPI) offers increased temporospatial resolution and statistical power for functional magnetic resonanceimaging (fMRI) but the higher spatial resolution comes at the cost of higher susceptibility-related spatial distortions. In diffusion MRI (dMRI), studies have shown that distortion correction is better when using blip-reversed EPI data (known under the term blip-up/down images) as compared to the standard fieldmap approach. This has motivated fMRI studies to acquire their data with blip-up/down directions and to use these to reduce susceptibility distortion. Here, we qualitatively illustrate why this can lead to erroneous results and quantify this error across 10 subjects.

AB - Multiband echo planar imaging (EPI) offers increased temporospatial resolution and statistical power for functional magnetic resonanceimaging (fMRI) but the higher spatial resolution comes at the cost of higher susceptibility-related spatial distortions. In diffusion MRI (dMRI), studies have shown that distortion correction is better when using blip-reversed EPI data (known under the term blip-up/down images) as compared to the standard fieldmap approach. This has motivated fMRI studies to acquire their data with blip-up/down directions and to use these to reduce susceptibility distortion. Here, we qualitatively illustrate why this can lead to erroneous results and quantify this error across 10 subjects.

M3 - Conference contribution - Poster

BT - Society for SMRT 27th Annual Meeting

PB - International Society for Magnetic Resonance in Medicine

T2 - Joint Annual Meeting ISMRM-ESMRMB

Y2 - 16 June 2026 through 21 June 2018

ER -