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Abstract #2513

Exploring the Efficacy of Different Combinations of B-Values and B-Tensor Shapes in Assessing Spinal Cord in MS and NMOSD Using Micro-FA

Masaaki Hori1,2, Akifumi Hagiwara2, Kouhei Kamiya1,2, Kazumasa Yokoyama3, Issei Fukunaga4, Katsuhiro Sano2, Koji Kamagata2, Katsutoshi Murata5, Shohei Fujita2, Christina Andica6, Akihiko Wada2, Julien Cohen-Adad7, and Shigeki Aoki2,6
1Toho University, Tokyo, Japan, 2Radiology, Faculty of Medicine, Juntendo University, Tokyo, Japan, 3Neurology, Faculty of Medicine, Juntendo University, Tokyo, Japan, 4Radiological Technology, Faculty of Health Science, Juntendo University, Tokyo, Japan, 5Siemens Japan K.K., Tokyo, Japan, 6Faculty of Health Data Science, Juntendo University, Chiba, Japan, 7NeuroPoly Lab, Polytechnique Montreal, Montréal, QC, Canada

Synopsis

Keywords: Spinal Cord, Spinal Cord

Motivation: The necessity to accurately delineate microstructural changes in the spinal cords of MS and NMOSD patients in vivo.

Goal(s): Assess if multiple b-tensor diffusion MRI data enhances the clinical utility of Micro Fractional Anisotropy (μFA) in distinguishing pathological variances in MS and NMOSD.

Approach: Comparative analysis of μFA values derived from planar tensor encoding data (DDE) and a combination of DDE with linear tensor encoding data was conducted.

Results: No significant μFA difference between MS and NMOSD was found, and additional linear tensor encoding data did not improve the results, highlighting the need for optimized imaging protocols.

Impact: This study elucidates the criticality of optimizing imaging protocols over merely aggregating data for precise diagnostic outcomes in MS and NMOSD. It prompts further investigation into refining imaging methodologies to uncover microstructural changes, enhancing diagnostic accuracy and subsequent patient management.

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Keywords