Re: [Freesurfer] T2-space vs T2-space-FLAIR
Bruce has said the FLAIR might be a little better for FreeSurfer but it¹s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn¹t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
thanks matt, would like to be sure that your comments in relation to the T2-space-flair sequence and not the typical clinical TSE-FLAIR. is that the case? cheers, satra On Wed, Jul 30, 2014 at 2:23 PM, Matt Glasser m...@ma-tea.com wrote: Bruce has said the FLAIR might be a little better for FreeSurfer but it’s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn’t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
Yes we performed both on the same subject in the same session and then compared the myelin map results. Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:53 PM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] T2-space vs T2-space-FLAIR thanks matt, would like to be sure that your comments in relation to the T2-space-flair sequence and not the typical clinical TSE-FLAIR. is that the case? cheers, satra On Wed, Jul 30, 2014 at 2:23 PM, Matt Glasser m...@ma-tea.com wrote: Bruce has said the FLAIR might be a little better for FreeSurfer but it¹s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn¹t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list freesur...@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinf o/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
thanks matt. cheers, satra On Wed, Jul 30, 2014 at 2:58 PM, Matt Glasser m...@ma-tea.com wrote: Yes we performed both on the same subject in the same session and then compared the myelin map results. Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:53 PM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] T2-space vs T2-space-FLAIR thanks matt, would like to be sure that your comments in relation to the T2-space-flair sequence and not the typical clinical TSE-FLAIR. is that the case? cheers, satra On Wed, Jul 30, 2014 at 2:23 PM, Matt Glasser m...@ma-tea.com wrote: Bruce has said the FLAIR might be a little better for FreeSurfer but it’s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn’t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
Hi Satra I've been working on that this week, and I think the answer is yes, but not a lot. The FLAIR has worked better in our past tests, but I found some problems with the T2 code and it is working much better now, so I think the jury is out. We're happy to give you an alpha version if you want to test it and decide for yourself :) Bruce On Wed, 30 Jul 2014, Satrajit Ghosh wrote: hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
please don't count on the T2 and FLAIR options doing the same thing as I suspect that they won't in the near future! Bruce On Wed, 30 Jul 2014, Satrajit Ghosh wrote: thanks matt, would like to be sure that your comments in relation to the T2-space-flair sequence and not the typical clinical TSE-FLAIR. is that the case? cheers, satra On Wed, Jul 30, 2014 at 2:23 PM, Matt Glasser m...@ma-tea.com wrote: Bruce has said the FLAIR might be a little better for FreeSurfer but it’s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn’t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Re: [Freesurfer] T2-space vs T2-space-FLAIR
thanks bruce. we aren't collecting the flair currently but some of our clinical collaborators have asked for it. we are likely to collect both on our next few participants, so happy to test out the alpha version. cheers, satra On Wed, Jul 30, 2014 at 3:08 PM, Bruce Fischl fis...@nmr.mgh.harvard.edu wrote: please don't count on the T2 and FLAIR options doing the same thing as I suspect that they won't in the near future! Bruce On Wed, 30 Jul 2014, Satrajit Ghosh wrote: thanks matt, would like to be sure that your comments in relation to the T2-space-flair sequence and not the typical clinical TSE-FLAIR. is that the case? cheers, satra On Wed, Jul 30, 2014 at 2:23 PM, Matt Glasser m...@ma-tea.com wrote: Bruce has said the FLAIR might be a little better for FreeSurfer but it’s worse for myelin maps (has less CNR for the myelin, though you can still see the major areas). Currently, the T2 and FLAIR flags do exactly the same thing, so it doesn’t even matter what flag you use. I think it depends on what else you might want to do with the data (i.e. if myelin maps were important to your study you might go with T2w (like HCP), but if lesion detection were more important you might go with FLAIR (like biobank). Peace, Matt. From: Satrajit Ghosh sa...@mit.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, July 30, 2014 at 1:01 PM To: Freesurfer Mailing List freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] T2-space vs T2-space-FLAIR hi bruce, is there any difference from freesurfer's perspective of using T2-space or T2-space-flair? cheers, satra ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
