Hamied, I wouldn't necessarily expect what we call the "paint index" from the surface/node-based paint file to match the paint index in the LUT_NAMES list.
But I would expect the LUT_NAMES to accurately map the paint name from its ordinal position. This post explains how that works: http://www.mail-archive.com/[email protected]/msg00712.html If you think your paint volume has mislabeled some voxels, then upload it here: http://pulvinar.wustl.edu/cgi-bin/upload.cgi ... and tell us exactly how you generated it. The LUT_NAMES should be reliable. But if you're expecting paint indices to remain constant across paint files, mappings, etc., then don't. Donna On 07/27/2009 11:54 AM, Hamied Haroon wrote: > > Hi, > > > > Following the kind advice provided by Donna and David, et al, > previously, I have taken each of the Paint Columns available for the > Macaque F99UA1 (i.e. Lobes, LVE00, Felleman-VE all, PHT 00, etc) and > converted these to Paint Volumes in CARET, which I have then saved as > AFNI image volumes on my local disk. This has allowed me to apply the > various parcellations to MRI data that I have in the same species of > macaque. > > > > I originally assumed that the signal intensities in the AFNI (.BRIK) > Paint Volume would correspond to the list of anatomical labels under > LUT_NAMES in the header (.HEAD). However this correspondence does not > seem to hold true for all the labels. For example, in LVE00, the > region that has a signal intensity of 18 is certainly V1, but in the > LUT_NAMES list 18 corresponds to V4. > > > > Could there be any errors in the LUT_NAMES lists in the AFNI .HEAD > files, or is there another way to (easily) get a reliable list of the > anatomical labels that correspond to the signal intensities in the > Paint Volume image file? > > > > I look forward to hearing from you. > > > > Many thanks. > > > > Best wishes, > > > > Hamied > > > > _________________________________________________________ > > > > Hamied A Haroon, PhD > > Research Associate in MR Neuroimaging > > Imaging Science and Biomedical Engineering Research Group > > Research School of Cancer and Imaging Sciences > > Faculty of Medical and Human Sciences > > The University of Manchester > > Room G.603, Stopford Building, Oxford Road, M13 9PT > > Tel: 0161 275 6871 Fax: 0161 275 5145 > > Mobile: 07961 488 472 > > Email: [email protected] > <mailto:[email protected]> > > Web: http://personalpages.manchester.ac.uk/staff/hamied.haroon/ > > _________________________________________________________ > > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users > _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
