Fig 4. Susceptibility tensors and evidence of susceptibility anisotropy.
A: Maps of all 6 elements of the susceptibility tensor of a representative axial slice. The red arrows point to a white matter fiber bundle, which shows significantly different susceptibility along different image axis. B. The diagonal tensor elements in two different sagittal slices. Red arrows point to the sagittal striatum, green and blue arrows point to two segments of corpus callosum, which show different image contrast along different image axis.