Hi Doug, As Bruce suggested, you may give me some help. My question is: I paint SPM results onto Freesurfer surface, is it possible to get the size and name of clusters on the surface?
Thanks Karry On Mon, Sep 3, 2012 at 10:16 PM, keepmoon <keepmoon1...@googlemail.com>wrote: > > Hi Bruce, > > Thanks for your answer! Yes. I would like to know the size of the cluster > after painting on the surface. > > Expecting Doug's reply! > > Thanks in advance! > > Karry > > > > > On Mon, Sep 3, 2012 at 7:51 PM, Bruce Fischl > <fis...@nmr.mgh.harvard.edu>wrote: > >> you mean the size of the cluster on the surface? Yes, you can do that, >> but you'll need to wait for Doug's return for the details >> >> cheers >> Bruce >> >> On Mon, 3 Sep 2012, keepmoon wrote: >> >> Hi Bruce, >>> >>> Thanks for your detailed explaination! >>> I have one more question about it! >>> Is it possible to get cluster size for being painted SPM results on >>> freesure >>> surface (like getting the cluster size of cortical thickness in QDEC )? >>> Is >>> there any command getting it? >>> >>> Any idea will be appreciated! >>> Thanks! >>> Karry >>> >>> >>> >>> On Mon, Sep 3, 2012 at 5:37 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu >>> > >>> wrote: >>> Hi Karry >>> >>> painting is done by mri_vol2surf and you can use it to specify >>> how you want the sampling to be done. We typically sample the >>> volume halfway our from the gray/white boundary, or sometimes a >>> bit lower to avoid vascular artifacts at the pial surface. That >>> said, it is quite flexible and you can use it to sample however >>> you wish (e.g. average over the bottom third of cortex, >>> etc....). When we sample we don't inspect the value, just grab >>> it from the volume and assign it to the surface so if there are >>> significant cluster that aren't intersected by the sampling band >>> you specify they will not appear on the surface. >>> >>> cheers >>> Bruce >>> >>> On Sun, 2 Sep 2012, keepmoon wrote: >>> >>> Hello everyone, >>> >>> I just read the information about "paintig SPM >>> results onto Freesurfer" >>> >>> (http://surfer.nmr.mgh.**harvard.edu/fswiki/SpmPainting<http://surfer.nmr.mgh.harvard.edu/fswiki/SpmPainting> >>> **). >>> It shows how to >>> painting SPM results from statistic step (ex. >>> spmT.img) to surface space. I >>> tested the procedure and it worked. But I don't >>> understand what is displayed >>> on Freesurfer surface. Are all the significant >>> differences from SPM >>> statistic results are displayed on this surface? or >>> some part of t values >>> are displayed (which part)? As cortical thickness >>> displayed on surface, each >>> thickness value is painted on each vertex. But here >>> t-value image from SPM >>> is volume image, how to paint it on surface? >>> >>> Someone could give a little detailed explaination?? >>> >>> Thanks in advance >>> >>> Karry >>> >>> >>> >>> >>> >>> >>> 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<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. >>> >>> >>> >>> >
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