Hi doug, Thanks doug. I used this DAT file,and the command termination without any problem.However the mask file dosenot overlay the rIPL area but frontal area when the mask file and fsaverage file were loaded in the freeview. Here are my scripts for creating the mask. mri_vol2surf --hemi rh --reg $FREESURFER_HOME/average/mni152.register.dat --mov ./rIPL.nii --o ./rIPL_mask.mgh --trgsubject fsaverage Source file volume-based mask ROI "rIPL.nii" is in the MNI152 space, and two snapshot can be got in the attachment. Also registrated surface ROI mask rIPL_mask.mgh snapshot can be got in the attachment. Here is its output in the command window. ========================================================================================= srcvol = ./rIPL.nii srcreg = /mnt/sdb1/psylab16/BACKUP/freesurfer/freesurfer/average/mni152.register.dat srcregold = 0 srcwarp unspecified surf = white hemi = rh trgsubject = fsaverage surfreg = sphere.reg reshape = 0 interp = nearest float2int = round GetProjMax = 0 INFO: float2int code = 0 INFO: changing type to float Done loading volume WARNING: the voxel resolution in the source volume (2,2,2) differs from that listed in the registration file (1,1,1) Reading surface /mnt/sdb1/psylab16/BACKUP/freesurfer/freesurfer/subjects/fsaverage/surf/rh.white Done reading source surface Mapping Source Volume onto Source Subject Surface 1 0 0 0 using old Done mapping volume to surface Number of source voxels hit = 21146 Writing to ./rIPL_mask.mgh Dim: 163842 1 1 ================================================================================================= Thanks All the best Rujing Zha 2014-04-24
charujing123
发件人：Douglas N Greve greve@nmr.mgh.harvard.edu 发送时间：2014-04-22 23:53 主题：Re: [Freesurfer] convert volume-based mni152 space into fsaverage surface space(MNI305) 收件人："freesurfer"freesurfer@nmr.mgh.harvard.edu 抄送：
Use mri_vol2surf with $FREESURFER_HOME/average/mni152.register.dat On 04/21/2014 10:20 PM, charujing123 wrote:
Hi FS experts and users, I created a mask volume, whose space is in MNI152 space. And I want to convert this volume into surface-based in fsaverage. How can I realize this? Thanks All the best. Rujing Zha 2014-04-22
charujing123
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