Data
62,142 bulk items are available, covering 57,839 participants.
Defined-instances run from 2 to 3, labelled using Instancing
2.
The values held within this field are coded links to files held within a bulk repository, not the actual data itself.
2 Instances
Instance 2 : Imaging visit (2014+)
57,492 participants, 57,492 items
Data not meaningful for statistical summary
Instance 3 : First repeat imaging visit (2019+)
4,650 participants, 4,650 items
Data not meaningful for statistical summary
Notes
Susceptibility weighted brain images in NIFTI format.
The source DICOM images were acquired using the following parameters:
Resolution: 0.8x0.8x3 mm
Field-of-view: 256x288x48 matrix
Duration: 2.5 minutes
Two echos, TE=9.42,20 ms
2D, axial, in-plane acceleration iPAT=2, partial Fourier = 7/8, prescan-normalise
To date (Oct 2015) the magnitude and phase images have been saved for each RF coil and echo time separately. In future the expectation is to combine these on the scanner.
The average size of these NIFTI datasets is 35MB per participant.