SynBOLD-DisCo: Synthetic BOLD images for distortion correction of fMRI without additional calibration scans.

ABSTRACT: The blood oxygen level dependent (BOLD) signal from functional magnetic resonance imaging (fMRI) is a noninvasive technique that has been widely used in research to study brain function. However, fMRI suffers from susceptibility-induced off resonance fields which may cause geometric distortions and mismatches with anatomical images. State-of-the-art correction methods require acquiring reverse phase encoded images or additional field maps to enable distortion correction. However, not all imaging protocols include these additional scans and thus cannot take advantage of these susceptibility correction capabilities. As such, in this study we aim to enable state-of-the-art distortion correction with FSL's topup algorithm of historical and/or limited fMRI data that include only a struct

SUBMITTER: Yu T 

PROVIDER: S-EPMC10353777 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature