sure, glad it's working
Bruce
On Mon, 13 May 2013, Jonathan DuBois wrote:

Sorry, I wasn't adjusting the overlay values so I couldn't see it. Thanks for 
your help!
Best, 
Jonathan


On Mon, May 13, 2013 at 11:09 AM, Bruce Fischl <fis...@nmr.mgh.harvard.edu> 
wrote:
      you should be able to load it into tksurfer as an overlay.

      cheers
      Bruce
      On Mon, 13 May 2013, Jonathan DuBois wrote:

            Hi Bruce, 
            Thanks for your help yesterday. I was able to create the .mgh file 
using the -output_type mgh option,
            but I am still unable to
            load it in tksurfer as label or anything else. If you or Doug have 
any other suggestions, I would really
            appreciate it. Thanks!

            Jonathan


            On Sun, May 12, 2013 at 4:55 PM, Bruce Fischl 
<fis...@nmr.mgh.harvard.edu> wrote:
                  Hi Jonathan

                  try -output_type mgh. It should create a "volume" that is 
nvertices long. Not sure if it can
            directly create a label
                  file, maybe Doug knows?

                  Bruce


                  On Sun, 12 May 2013, Jonathan DuBois wrote:

                  I used the following options: mri_vol2surf --hemi lh 
--regheader subject01
            --cortex --mov label.mgz --o ./label.mghIt ran without error, but I 
could
            not open the resulting file in tksurfer as either a label or an 
overlay:
            ---------
            /Applications/freesurfer/tktools/tksurfer.bin: no data in label file
            /Users/label.mgh
            tkmedit: Trying to open /Users/label.dat
            surfer: Interpreting overlay volume /Users/label.mgh as encoded 
scalar
            volume

            Best, 
            Jonathan


            On Sun, May 12, 2013 at 1:57 PM, Bruce Fischl 
<fis...@nmr.mgh.harvard.edu>
            wrote:
                  try using --regheader

                  cheers
                  Bruce
                  On Sun, 12 May 2013, Jonathan DuBois wrote:

                        Hi Bruce, 
                        I would like to convert the .mgz label volume to a
                        surface label for that
                        subject, but mri_vol2surf requires a registration
                        file.

                        Best, 
                        Jonathan



                        On Sunday, May 12, 2013, Bruce Fischl wrote:
                              Hi Jonathan

                              you don't need to register it if it's shown
                        properly in tkmedit
                              or freeview. Can you tell us more about what
                        you are trying to
                              do?
                              Bruce


                              On Sun, 12 May 2013, Jonathan DuBois wrote:

                                    Hi Bruce, 
                                    Thanks for the quick response. The label
                        is a
                                    manually traced area of the
                                    cortex. It is in subject scanner space
                        and has a
                                    single value, so it
                                    probably would not work with bbregister.
                        I can load
                                    it in tkmedit as a
                                    segmentation and the alignment is
                        correct. I
                                    attached a screenshot. Is there
                                    a way to select the values greater than
                        zero in
                                    tkmedit and save as a label
                                    that could be used in vol2surf? I have
                        other labels
                                    that are larger so I
                                    would prefer not to retrace them if
                        possible.

                                    Inline image 2
                                    Best, 
                                    Jonathan


                                    On Sun, May 12, 2013 at 10:11 AM, Bruce
                        Fischl
                                    <fis...@nmr.mgh.harvard.edu>
                                    wrote:
                                          Hi Jonathan

                                          what is the label? What space is
                        it in? If it
                                    has gray/white
                                          contrast you could try bbregister.

                                          cheers
                                          Bruce
                                          On Sat, 11 May 2013, Jonathan
                        DuBois wrote:

                                                Hi Freesurfer Experts, 
                                                I have a binary volume label
                        in subject
                                    space that I
                                                converted from MINC to MGZ.
                        I would like
                                    to register
                                                it to
                                                the surface of that subject
                        as a flat
                                    label. I
                                                thought I would be able to
                        do so with
                                    mri_vol2surf
                                                but I am not
                                                sure how to generate the
                        required
                                    registration file.
                                                Is that the correct command,
                        and if so,
                                    which
                                                registration
                                                file should I use?

                                                Thanks
                                                Jonathan




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