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Abstract #5450

Block-Interleaved Segmented EPI for voxel-wise high-resolution fMRI studies at 7T

Guoxiang Liu1, Adnan Shah1, and Takashi Ueguchi1

1CiNet, NICT, Suita-shi,Osaka, Japan

We report a novel segmented EPI method preserving the pattern of hemodynamic response in bock design fMRI studies. The proposed method uses an EPI-based anatomical data obtained with the same distortion from task EPI scans for further fMRI analysis. At sub-millimeter spatial resolution, the proposed method avoids functional to structural registration and spatial smoothing giving us an opportunity to investigate activity dynamics at the columnar level spatial resolution with high specificity. Our results showed that the proposed method can perform voxel-wise high-resolution fMRI studies with a voxel size of 0.6×0.6×0.6 mm3 at 7T.

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