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Abstract #1450

Diffusional Kurtosis Tractography of Cervical Spinal Cord White Matter with Multi-band EPI Technique

Masaaki Hori1,2, Ryuji Nojiri2, Yasuaki Tsurushima2, Katsutoshi Murata3, Keiichi Ishigame2, Kouhei Kamiya4, Yuichi Suzuki4, Koji kamagata1, and Shigeki Aoki1

1Radiology, Juntendo University School of Medicine, Tokyo, Japan, 2Tokyo Medical Clinic, Tokyo, Japan, 3Siemens Japan, Tokyo, Japan, 4Radiology, The University of Tokyo, Tokyo, Japan

We investigate the effect of multi-band reduction factor (MBf) on tractography methods, diffusional kurtosis tractography (DKI) -based and diffusion tensor imaging (DTI) –based, and quantitative diffusion metrics in the cervical spinal cord white matter in vivo. The numbers of WM tracts increased in DKI tractography, compared with DTI tractography for the same position. Moreover, the numbers of WM tracts decreased in MBf of 3 data, compared with MBf of 2. Unchanged diffusion metrics values were observed on any conditions. DKE-based method seem to be preferable and MBf of 2 is recommended for spinal cord WM tractography.

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