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Abstract #0953

The Relationship Between Susceptibility Weighted Phase and White Matter Fiber Orientation.

Enedino Hernndez1, Alex MacKay2, Alexander Rauscher3

1Instituto de Fsica, Universidad de Guanajuato, Len, Guanajuato, Mexico; 2Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada; 3UBC MRI Research Centre, University of British Columbia, Vancouver, British Columbia, Canada


The origin of contrast in susceptibility weighted phase imaging (SWI) is not yet fully understood. Both grey and white matter show considerable heterogeneity on phase images. We investigated the relationship between white matter fiber orientation with respect to Bo (obtained from DTI data) and phase (obtained from SWI data). Phase was negative for fibers parallel and perpendicular to Bo and positive for intermediate orientations