Meeting Banner
Abstract #0960

Diattenuation and retardance metrics from complete polarimetry differentiate microscale and macroscale anisotropy

Rhea Carlson1, Courtney Comrie1, Justina Bonaventura2, Kellys Morara1, Noelle Daigle2, Elizabeth Hutchinson1, and Travis W. Sawyer1,2
1Biomedical Engineering, University of Arizona, Tucson, AZ, United States, 2Wyant College of Optical Sciences, University of Arizona, Tucson, AZ, United States

Synopsis

Keywords: Data Acquisition, Multimodal, Polarized Light Imaging, Optics, FerretThis study uses complete polarimetry to capture diattenuation and retardance in post-mortem ferret optic chiasm (OC) chosen for its well understood fiber structure. These methods are novel due to the limited analysis of diattenuation metrics on tissue. Our results suggest that retardance measurements are sensitive to microscale features rather than to macroscale geometry when compared to fractional anisotropy (FA) and propagator anisotropy (PA). In addition, we have shown fiber orientation distributions (FODs) created through direct optical measurement of the tissue on a 2D plane are comparable to diffusion FODs.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords