Matt, Want to keep 1.6. I am doing IPAT=2 Just for resting state, not tasks, for 20 min.
Your recommendation would be MB5 with TR=962 better than MB4 with TR=1090? Fieldmap 1.6*1.6*2 is not working well enough. How did you acquire your Fieldmap? Any suggestion for improvement (see attachment if needed)? Finally, will be an available HCP pipeline online for 7 tesla sometime soon? I am using SPM now. Thank you very much for this communication!! Best wishes always, Leah Sent from my iPhone > On Mar 24, 2015, at 6:53 AM, Glasser, Matthew <glass...@wusm.wustl.edu> wrote: > > We used ipat=2 MB=5 for 1.6mm isotropic data with TR=1s (for reasons of > improving temporal cleanup, I might be inclined to do 2mm and shorten the TR > further like the 3T HCP data, but there are still active investigations into > whether the 1.6mm data allow us to see finer details). The main trick with > the 7T HCP data is that we are using the 3T structural scans (T1w and T2w at > 0.7mm). The 3D T2w SPACE is hard to get at 7T because of SAR issues, and T1w > MPRAGEs are much more inhomgeneous in their flip angles than at 3T, though > hopefully it will be more possible when parallel transmit becomes more > standard. > > The grayordinatewise CNR is dramatically higher in the 7T HCP data, however. > > Peace, > > Matt. > > From: Marta Moreno <mmorenoort...@icloud.com> > Date: Tuesday, March 24, 2015 at 3:52 AM > To: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> > Subject: [HCP-Users] rsfMRI at 7 Tesla > > Hi users, > > I am studying preliminary data in order to define my protocol at 7 Tesla > following some comments I posted here some time ago. I am testing rsfMRI > 1.6x1.6x1.6: > 1. MB5 TR=962 vs MB4 TR=1090 > 2. B0Fieldmap vs Topups > High order and degree shimming (1st and 2nd), 24channel coil. > My conclusion is MB4 TR=1090 and Topups. > > Will test tomorrow high order and degree shimming (3rd and 4th degree), > quadrature. > > Wanted to here some expert opinions… I would like to acquire data to be > processed through the HCP whenever it is possible. > I attached very preliminary protocol just in case you can take a look and > give me some feedback. > > Thank you very much for your help in advance, > > Leah > > _______________________________________________ > HCP-Users mailing list > HCP-Users@humanconnectome.org > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > > _______________ > Marta Moreno-Ortega, Ph.D. > Postdoctoral Research Fellow > Division of Experimental Therapeutics > New York State Psychiatric Institute > Department of Psychiatry > Columbia University College of Physicians and Surgeons > > > > > > > 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
