Abstract #0929
Human cortical surface maps of three quantitative imaging parameters:R_1, R_2^* and Magnetic Susceptibility
Diana Khabipova 1 , Rolf Gruetter 1,2 , and Jos P. Marques 1
1
CIBM, Lausanne, Vaud, Switzerland,
2
Radiology,
University of Lausanne and Geneva, Vaud, Switzerland
This study compares the ability of the different
contrasts (R1, R2star and Susceptibility) to provide
insights into the cortical brain structure. The cortical
R1 and R*2 maps shown show similar contrast to that
reported by other groups. The χ, as opposed to R1 maps
and R*2, does not decrease monotonically from inner
surfaces to outer surfaces, suggests that myelin and
iron contributions are cancelling each other and might
have distinguishable cortical distributions. Combination
of information using different contrasts at different
depths could provide useful information for cortical
segmentation as is supported by the reproducibility of
the single subject data.
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