fMRI didn't use GRAPPA, rather it was an update to the multi-band reconstruction.
Peace, Matt. From: <[email protected]<mailto:[email protected]>> on behalf of Benjamin Risk <[email protected]<mailto:[email protected]>> Date: Monday, May 9, 2016 at 12:55 PM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [HCP-Users] Clarification in change in fMRI reconstruction algorithm Dear HCP experts, I have two questions: 1) I understand that the reconstruction algorithm for fMRI changed with the Q3 data release. I believe there are three main GRAPPA reconstruction approaches for multiband imaging: SENSE/GRAPPA from Blaimer et al (2006); Slice-GRAPPA from Setsompop et al (2012); and Split-Slice-GRAPPA from Cauley et al (2014). Do the HCP reconstruction algorithms correspond to these methods? From my reading of Ugurbil et al 2013, p. 89, I thought the change was from SENSE/GRAPPA to Slice-GRAPPA, but I now see that the overview document http://www.cmrr.umn.edu/multiband/Multi-Band_C2P_Instructions_R013a.pdf includes a citation to Cauley. 2) I ultimately want to simulate data generated by coil sensitivities similar to the HCP scanners and head coils. Are single-band calibration data for each coil available? Thank you, Ben Risk Postdoc at SAMSI / Department of Biostatistics UNC Chapel Hill _______________________________________________ HCP-Users mailing list [email protected]<mailto:[email protected]> http://lists.humanconnectome.org/mailman/listinfo/hcp-users ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
