Journal: Scientific Data

Article Title: The Cuban Human Brain Mapping Project, a young and middle age population-based EEG, MRI, and cognition dataset

doi: 10.1038/s41597-021-00829-7

Figure Lengend Snippet: MRI Protocol.

Article Snippet: Diffusion-weighted images (DWI) Variant 1 , • Sequence: 2D Single-Shot Gradient Echo Echo-Planar-Imaging (GE-EPI) • Parallel acquisition: none • Multiband: none • FOV: 256 × 256 mm • Imaging matrix: 128 × 128 • Phase-Encoding direction: AP • In-plane resolution: 2 × 2 mm • Number of slices: 25 • Slice orientation: Axial • Slice thickness: 3 mm • Slice gap: 3 mm • Repetition Time (TR): 7000 ms • Echo Time (TE): 160 ms • Flip Angle: 90 degrees • Acquisitions: 6 • Diffusion gradient scheme: Siemens MDDW • Number of diffusion gradient directions: 12 • Echo Spacing: 1.149 ms • Readout Time: 145.92 ms • Image type: Magnitude • Series Name: ep2d_diff12dir • Name of the Sequences: ep_b0, ep_b1200 # 0... 11 This DWI sequence was repeated in a second run with the same parameters. The only difference was the position of the slices. They were translated parallel to the axis normal to the slice (axial plane) so that the single from the gaps of the first run were acquired in the second run. Consequently, the gaps of the second run occupied the regions from which the signal in the first run was acquired. In this way, the entire brain was covered with a total of 50 slices..

Techniques: Sequencing, Imaging, Diffusion-based Assay, Variant Assay