Meeting Banner
Abstract #4468

Investigating the feasibility of reverse cross polarization for the development of a new myelin detection technique in MRI

Alex Ensworth1,2, Cariad-Arianna Knight1, Piotr Kozlowski1,2,3,4, Cornelia Laule1,2,3,5, Alex L. MacKay1,3,4, and Carl A. Michal1
1Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, 2International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada, 3Radiology, University of British Columbia, Vancouver, BC, Canada, 4UBC MRI Research Centre, University of British Columbia, Vancouver, BC, Canada, 5Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

Synopsis

Keywords: Non-Proton, Non-Proton, myelin, spectroscopy, phosphorus, hydrogen, spinal cord, cross polarization, NMR, magnetization transfer, brain

Motivation: The potential of phosphorous MRI to enhance in vivo myelin detection and improve neurodegenerative disease diagnosis inspired our project. However, the challenge lies in transferring the solid phosphorus signal to aqueous protons for MRI measurement.

Goal(s): To demonstrate the feasibility of detecting an aqueous proton signal originating from myelin phosphorous, providing a proof of principle result.

Approach: We employed gradients in solid-state NMR experiments to investigate signal transfer between aqueous proton signal originating from myelin phosphorous, incorporating encoding and decoding gradients.

Results: While individual transfer steps were successful, the complete transfer experiment yielded an unexpected negative result, indicating that further investigation is needed.

Impact: The successful transfer of signal from phosphorous in myelin to aqueous hydrogen would lead to a new method for direct myelin detection. This could potentially offer earlier and more direct measurements of demyelination, benefiting those with neurodegenerative diseases.

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