Hi, >find the 64-channel is a really tight fit for many subjects, so we?re >inclined to use a 32-channel to fit the most subjects.
You are not talking about the Siemens 64-channel head/neck coil, are you? I would be surprised because I think it is actually less tight than the 32 channel headcoil. Having said that, I would do a formal SNR and coil quality check and pick the coil which gives you the better signal in the areas you are most interested in (and that fits most subjects;). Cheers, Andreas Am 14.11.14 19:00 schrieb "[email protected]" unter <[email protected]>: >Send HCP-Users mailing list submissions to > [email protected] > >To subscribe or unsubscribe via the World Wide Web, visit > http://lists.humanconnectome.org/mailman/listinfo/hcp-users >or, via email, send a message with subject or body 'help' to > [email protected] > >You can reach the person managing the list at > [email protected] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of HCP-Users digest..." > > >Today's Topics: > > 1. mb sequence options (Mark A. Pinsk) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Thu, 13 Nov 2014 15:24:35 -0500 >From: "Mark A. Pinsk" <[email protected]> >Subject: [HCP-Users] mb sequence options >To: [email protected] >Message-ID: > <caddgxgq4vcwt5rcau4aypkaoqpdhqzgqfs3iuegdvn-i3wb...@mail.gmail.com> >Content-Type: text/plain; charset="utf-8" > >Hi all, > >We're trying to decide which mb sequences to use at our new Prisma, and >are >looking for advice. > >Our options currently are: >a- HCP mb bold and diffusion sequences via C2P >b- MGH mb bold sequence (http://www.nmr.mgh.harvard.edu/software/c2p/sms) >via C2P >c- Siemens WIP mb diffusion sequence > >Would there be any reasons to choose the HCP mb sequences over the other >mb >sequences? > >We noticed that the HCP sequences have an MB factor that the user can set, >but the MGH and Siemens sequences also have an additional "shift" >parameter. Why is that ? Do the HCP sequences automatically choose the >optimal shift? > >Also, given the choice of a 20, 32, and 64 channel coil on our Prisma, >does >anyone have a particular recommendation? We do find the 64-channel is a >really tight fit for many subjects, so we?re inclined to use a 32-channel >to fit the most subjects. Will mb perform better with the 64-ch coil? > >Thanks (apologies if this is the wrong forum to ask such questions), >Mark >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: >http://lists.humanconnectome.org/pipermail/hcp-users/attachments/20141113/ >e888b44f/attachment-0001.html > >------------------------------ > >_______________________________________________ >HCP-Users mailing list >[email protected] >http://lists.humanconnectome.org/mailman/listinfo/hcp-users > > >End of HCP-Users Digest, Vol 24, Issue 13 >***************************************** _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
