Choosing the polarity of the phase-encoding direction in diffusion MRI: Does it matter for group analysis?
van Rooij, S.J.H.
- Publisher: Elsevier
NeuroImage : Clinical,
(issn: 2213-1582, eissn: 2213-1582)
Data quality | R858-859.7 | EPI distortions | Computer applications to medicine. Medical informatics | Neurology. Diseases of the nervous system | Phase-encoding polarity | Susceptibility artifacts | RC346-429 | Regular Article | Diffusion tensor imaging | Fractional anisotropy | Group analysis
Notorious for degrading diffusion MRI data quality are so-called susceptibility-induced off-resonance fields, which cause non-linear geometric image deformations. While acquiring additional data to correct for these distortions alleviates the adverse effects of this art...