HCP-EP's imaging protocols are based on the 2016 CCF template protocol with a total duration of approximately 70 minutes. HCP-EP collected data on three Siemens MAGNETOM Prisma 3T scanners at BWH, McLean, and IU. BWH and IU used a 32-channel head coil. The McLean used a 64-channel head & neck coil, with the neck channels turned off.
In short, the protocol scan sequences were:
- T1w (MPRAGE) and T2w (SPACE) structural scans of 0.8mm isotropic resolution.
- Resting state fMRI (rfMRI) of 2mm isotropic resolution, multiband (MB) acceleration factor of 8, TR 720ms, acquired twice: once with AP and once with PA phase encoding.
- Diffusion MRI (dMRI) 1.5mm isotropic, MB acceleration factor of 4, 92 directions in each shell (b=1500 and 3000) acquired twice: once with AP and once with PA phase encoding. In addition, field maps were acquired to correct for intensity and geometric distortions.
Download detailed protocols for all HCP-EP sites