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Abstract #2390

Evaluation of Brain Stem Anatomy with 3D-FLAIR Imaging at 3T

Mika Kitajima1, Toshinori Hirai1, Yoshinori Shigematsu1, Hiroyuki Uetani1, Koya Iwashita1, Kousuke Morita1, Masuma Akter1, Yasuyuki Yamashita1

1Diagnostic Radiology, Kumamoto University, Kumamoto, Japan

3D-FLAIR imaging using varying flip angles of RF pulses reduces pulsation- and blood flow artifacts and yields a high SNR and high spatial resolution compared to 2D-FLAIR imaging. To evaluate the brain stem anatomy, we compared 3D-FLAIR images, TSE T2WI, diffusion-tensor color maps in 10 healthy volunteers, and used a brain atlas. On 3D-FLAIR images the detailed structures, i.e. the superior-, middle-, and inferior cerebellar peduncle, the decussation of the superior cerebellar peduncle, the central tegmental tract, the medial lemniscus, and the corticospinal tract were depicted; the white matter tracts were not visible on TSE T2WI.