Essa Yacoub from CMRR sent me the following for distribution to the HCP-User list on this issue:
"A lot of investigators have done comparisons between the sequences. Most of this data is not public, although there are some sites that have published things - e.g. https://practicalfmri.blogspot.com/2016/06/starting-points-for-sms-epi-at-3-t-part.html#more It should be noted that there are many different variants of the sequences from WIP to Product to MGH-c2p and CMRR-c2p -and- that it is difficult to directly compare the sequences as they have different options/features. There are many differences from acquisition to image reconstruction for both fMRI and diffusion. That said, I have yet to see any feedback to suggest that the MGH sequence (or other) outperforms the CMRR sequence, let alone a consensus. We get this type of question all of the time and what we tell people is to run the comparison for their particular protocol and metrics of interest and decide for themselves which sequence better fits their needs. -- Michael Harms, Ph.D. ----------------------------------------------------------- Conte Center for the Neuroscience of Mental Disorders Washington University School of Medicine Department of Psychiatry, Box 8134 660 South Euclid Ave. Tel: 314-747-6173 St. Louis, MO 63110 Email: mha...@wustl.edu From: <hcp-users-boun...@humanconnectome.org<mailto:hcp-users-boun...@humanconnectome.org>> on behalf of Mahmoud <zeydab...@gmail.com<mailto:zeydab...@gmail.com>> Date: Tuesday, July 11, 2017 at 8:18 PM To: "Glasser, Matthew" <glass...@wustl.edu<mailto:glass...@wustl.edu>> Cc: "HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>" <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: Re: [HCP-Users] CMRR vs MGH multiband/SMS sequences And please let us know if you figured it out which sequence is better. Thank you, Mahmoud On Tue, Jul 11, 2017 at 4:44 PM, Glasser, Matthew <glass...@wustl.edu<mailto:glass...@wustl.edu>> wrote: I am not part of such a consensus. I don’t know if there have been rigorous comparison of the two sequences or by what metrics it is being asserted that MGH outperforms CMRR. Perhaps you could ask your source for this recommendation why they say that? Peace, Matt. From: <hcp-users-boun...@humanconnectome.org<mailto:hcp-users-boun...@humanconnectome.org>> on behalf of "Juranek, Jenifer" <jenifer.jura...@uth.tmc.edu<mailto:jenifer.jura...@uth.tmc.edu>> Date: Tuesday, July 11, 2017 at 10:34 AM To: "HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>" <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: [HCP-Users] CMRR vs MGH multiband/SMS sequences Just curious if anyone is aware of head-to-head comparisons of CMRR and MGH MB/SMS sequences? Someone recently mentioned to me that “the general consensus is that MGH outperforms CMRR”. Is there a “general consensus” in the research community on this issue? Any differences between dMRI and fMRI applications? I’m interested in using an HCP-style acquisition protocol for a 5yr study about to start…from what I can tell, CMRR MB sequences have been selected across the board for HCP-style studies currently funded by NIH. Does anyone have any thoughts they can share? Many Thanks, Jenifer ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Jenifer Juranek, PhD Associate Professor Department of Pediatrics UTHealth Houston, TX 77030 713.500.8233<tel:(713)%20500-8233> _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org> http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org> http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org> 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 HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
