Origin of B0 orientation dependent R2(*) (=1/T2(*)) in white matter.
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ABSTRACT:
SUBMITTER: Oh SH
PROVIDER: S-EPMC3638902 | biostudies-literature | 2013 Jun
REPOSITORIES: biostudies-literature
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Origin of B0 orientation dependent R2(*) (=1/T2(*)) in white matter.
Oh Se-Hong SH Kim Young-Bo YB Cho Zang-Hee ZH Lee Jongho J
NeuroImage 20130131
Recent MRI studies have demonstrated that the relative orientation of white matter fibers to the B0 field significantly affects R2(*) measurement. In this work, the origin of this effect was investigated by measuring R2 and R2(*) in multiple orientations and fitting the results to magnetic susceptibility-based models and magic angle-based models. To further explore the source of magnetic susceptibility effect, the contribution of tissue iron to the orientation dependent R2(*) contrast was invest ...[more]
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