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