Location of Repository

Finer Discrimination of Fiber Orientation at High q Diffusion MR: Theoretical and Experimental Confirmation

By L. Avram, Y. Assaf, P. J. Basser and Y. Cohen


Recently, it was found that the signal attenuation observed in diffusion MR experiments of a pack of cylindrical impermeable microcapillary tubes have high directional sensitivity. We have modeled this signal decay as a function of q using the restricted component of the newly proposed CHARMED model, which describes intra-axonal diffusion. CHARMED fits the data nicely, and more importantly predicts the high sensitivity of the diffraction pattern on the tube orientation. These findings suggest that high q diffusion imaging has the potential to better resolve directional characteristics of white matter as compared to DTI or other low q diffusion imaging methods

Year: 2005
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://dir2.nichd.nih.gov/nich... (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.