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Abstract #1723

Repeatability of Diffusion Kurtosis Tensor Parameters in Muscles of the Lower Legs

Ethan Mathew1,2, Chad Quarles1, Sudarshan Ragunathan1, and Richard Dortch1
1Barrow Neurological Institute, Tempe, AZ, United States, 2Arizona State University, Tempe, AZ, United States


This study examines the repeatability of quantitative measures obtained from the lower legs using a diffusion kurtosis tensor imaging sequence with a scan time of just 13 minutes. Test-retest data was acquired, and kurtosis parameters were calculated for both sets of data. Muscle groups were segmented, and repeatability was assessed by muscle group. In both the medial gastrocnemius and tibialis anterior, kurtosis fractional anisotropy and fractional anisotropy showed highest repeatability, as well as mean diffusivity in the medial gastrocnemius.

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