We don't currently use them. In the future we might make an option in the pipelines to use them (they are what Siemens pre scan normalize uses for on-scanner intensity inhomogenity correction).
Peace, Matt. From: <[email protected]<mailto:[email protected]>> on behalf of Chris Filo Gorgolewski <[email protected]<mailto:[email protected]>> Date: Tuesday, November 10, 2015 at 6:47 PM To: Hcp Users <[email protected]<mailto:[email protected]>> Subject: [HCP-Users] Purpose of BIAS_32CH and BIAS_BC files Dear all, I was wondering what are the BIAS_32CH and BIAS_BC files used for. From the manual I have inferred those are "Bias receive and Bias transmit scans", but I could not find where are they used in preprocessing pipelines (B1 bias maps are calculated from T1w and T2w images: https://github.com/Washington-University/Pipelines/blob/96cbf06b2b1892d709671fb70a46e1e01d9a2788/PreFreeSurfer/PreFreeSurferPipeline.sh#L601). Could you shed some light on the nature and purpose of those files? Best, Chris _______________________________________________ HCP-Users mailing list [email protected]<mailto:[email protected]> http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
