| Description: | EMBARGOED UNLINKED : Multiband diffusion brain images - DICOM |
| Category: | Embargoed |
| Participants | 2,904 | Value Type | Text | Sexed | Both sexes | Debut | May 2023 | |||
| Item count | 2,904 | Item Type | Bulk | Instances | Defined (1) | Version | Apr 2024 | |||
| Stability | Ongoing | Strata | Auxiliary | Array | No | Cost Tier | d3 o2 s3 |
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The DICOM images were acquired using the following parameters:
Resolution: 2x2x2 mm
Field-of-view: 104x104x72 matrix
Duration: 7 minutes (including 36 seconds phase-encoding reversed data)
10x b=0, 50x b=1000, 50x b=2000
SE-EPI with x3 multislice acceleration, no iPAT, fat saturation
For the two diffusion-weighted shells, 50 distinct diffusion-encoding directions were acquired (and all 100 directions are distinct). The diffusion prepraration is a standard ("monopolar") Stejskal-Tanner pulse sequence. This enables higher SNR due to a shorter echo time (TE=92ms) than than a twice-refocused ("bipolar") sequence. This improvement comes at the expense of stronger eddy current distortions, which are removed in the processed data available in NIFTI format.
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