Mike, Just as a heads up, when SUMA was first developed, Caret and SureFit were separate. (SureFit generated segmentations and surfaces; Caret displayed, flattened, and registered surfaces.) In those days, SureFit's origin was at the lower left corner of the cropped bounding box. When SureFit merged into Caret, there was a migration from voxel space to coordinate space, and the origin moved to the AC (or whatever the origin in the volume fed to Caret for segmentation). If SUMA translates the surface by some parameters defined in the .params file, you'll see major misalignment between surface and volume. I think Ziad has a work-around for this -- perhaps a flag added to the coord header to indicate it is post-SureFit. The F6 and F99 datasets are post-SureFit.
It is possible that you'll need to convert the surface shape file to ASCII ; strip the header; and extract the curvature column into a "1D" file. But it is worth posting to the AFNI message board. Donna On 10/01/2009 12:34 PM, Michael Arcaro wrote: > Thanks Donna, > > I'll use the F6.BOTH.withF99 dataset. I've had success loading > individual surfaces into SUMA (after converting the files to ASCII), > but haven't figured out how to load / display the curvature. Since > this is probably more related to SUMA and figuring out how to properly > load the data with SUMA, I'll follow up with the AFNI/SUMA folk for > more help. > > It also appears that SUMA is looking for a .params file. I generated > one in Caret from File-> save data file (after loading the atlas > spec). I assume this should be sufficient. > > Thanks! > Mike > > > On Oct 1, 2009, at 9:38 AM, Donna Dierker wrote: > > >> Hi Mike, >> >> 1) F6 dataset: Probably only David knows for sure, but >> Macaque.F6.BOTH.SURF-VOL.Std-MESH.73730 is dated 3/9/2007, while >> Macaque.F6.BOTH.withF99-Data.Std-MESH.73730 is dated 8/16/2007. Since >> they have many files in common, my guess is that the latter was >> based on >> the former, but has an important enhancement: >> Macaque.F99UA1.COMPOSITE_PartititioningSchemes.73730.borderproj. It >> has >> the partitioning schemes not only in paint form, but also border form. >> I'd use the latter. >> >> 2) SUMA interoperability: While John Harwell (our lab) has worked >> with >> Ziad Saad and Rick Reynolds (AFNI/SUMA orbit) on GIFTI, a neutral >> surface file format akin to what NIfTI does for volumes, I don't think >> you need to convert your surfaces to GIFTI in order for SUMA to read >> them. Ziad has worked pretty hard to make SUMA read Caret surfaces >> with >> little tweaking. We did uncover some issues recently with the way >> Caret >> was writing AFNI .HEAD files, but sticking with NIfTI, where possible, >> should avoid these problems. That said, both the datasets mentioned >> above have AFNI volumes, so if you run into any alignment issues >> between >> the volume and the surface in SUMA, let us know. I don't necessarily >> anticipate problems. >> >> Donna >> >> On 09/30/2009 03:15 PM, Michael Arcaro wrote: >> >>> Hello, >>> >>> I'm interested in mapping some macaque fMRI data onto the macaque >>> atlases, specifically the Lewis - Van Essen '00 atlas. I'm new to >>> Caret and have a couple of basic questions: >>> >>> First, is there a recommended atlas dataset to use? (F6 or F99) From >>> the tutorial, it sounds as if I would want to go with the F6 atlas. >>> Assuming I go with the F6, what are the differences between: >>> Macaque.F6.BOTH.SURF-VOL.Std-MESH.73730 >>> Macaque.F6.BOTH.withF99-Data.Std-MESH.73730 >>> Is there a reason to use one of these above the other? >>> >>> Second, I'm looking to import the atlas into SUMA to warp/align with >>> my data. I'm having a bit of difficulty with this. From what I have >>> read, SUMA can read Caret format. I was wondering if I need to >>> convert >>> any of the files into a different format for SUMA to read (or >>> possibly >>> rename the files). This may be more of a question for the SUMA folk, >>> but I thought I'd see if anyone here is familiar with importing the >>> atlases into SUMA. >>> >>> Thanks, >>> Mike Arcaro >>> _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
