3D multishot GRE resting-state BOLD-sensitive images of the lumbar spinal cord were acquired in 10 healthy participants as part of a functional MRI (fMRI) protocol. Temporal SNR in the gray matter (GM) was 18.2±4.3 after post-processing. Average correlations at rest were 0.49±0.17 between ventral horns, and 0.55±0.13 between dorsal horns, and could be detected at the single-subject level using seed-based analysis. Independent Component Analysis in 6 subjects, each scanned on two different occasions, identified network nodes within GM that were consistent across sessions. FMRI of the lumbar spine is feasible and may reflect functional integrity of the lumbar cord.
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