| Description: | Functional brain images - task - NIFTI |
| Category: | Assessment centre ⏵ Imaging ⏵ Brain MRI ⏵ Task functional brain MRI |
| Brain MRI scans + XNAT image package + Brain MRI |
| Participants | 43,057 | Value Type | Text | Sexed | Both sexes | Debut | Oct 2015 | |||
| Item count | 47,454 | Item Type | Bulk | Instances | Defined (2) | Version | Feb 2023 | |||
| Stability | Accruing | Strata | Derived | Array | No | Cost Tier | d3 o2 s3 |
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The values held within this field are coded links to files held within a bulk repository, not the actual data itself.
Instance 3 : First repeat imaging visit (2019+)
4,690 participants, 4,690 items
Data not meaningful for statistical summary
The source DICOM images were acquired using the following parameters:
Resolution: 2.4x2.4x2.4 mm
Field-of-view: 88x88x64 matrix
Duration: 4 minutes (332 timepoints)
TR: 0.735 s
TE: 39ms
GE-EPI with x8 multislice acceleration, no iPAT, flip angle 52 degrees, fat saturation
As implemented in the CMRR multiband acquisition, a separate "single-band reference scan" is also acquired. This has the same geometry (including EPI distortion) as the timeseries data, but has higher between-tissue contrast to noise, and is used as the reference scan in head motion correction and alignment to other modalities.
The average size of these NIFTI datasets is 450MB per participant.
| Field ID | Description | Relationship |
|---|---|---|
| 20217 | Functional brain images - task - DICOM | Current Field was derived from Field 20217 |
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