help > RE: ROI problem (csf)
Nov 30, 2015  04:11 PM | Alfonso Nieto-Castanon - Boston University
RE: ROI problem (csf)
Hi Sherihane,

The error message indicates that for that there are no remaining CSF voxels in that mask after erosion (in order to minimize spillage from nearby regions CONN applies one-voxel erosion to the white/CSF masks). Normally this error message would simply indicate that there was some problem in the normalization/segmentation step of that subject's structural data, but in your case the file names might seem to indicate that you are using a template mask instead, so, if you prefer to simply skip the erosion step you can do that typing the following in Matab's command window before running the Setup step:

 conn_batch('Setup.cwthreshold',[0 0]);

Hope this helps
Alfonso
 
Originally posted by sherihane Bensemmane:
Hi,
I can't run the set up phase apparently it's unable to read my csf mask, but i don't understand why, it s a binary image in the same space as the anatomical and made the same way as the wm and gm. The error message i get is :

Error using conn_process (line 557)
No suprathreshold voxels in ROI file /data/local/sherihane/connectivity_conn/new_analysis/template/clean_template/clean_to_use/csf_clean_thr_bin.nii after erosion (original file contained 13623 suprathreshold voxels)

Error in conn_process (line 12)
case 'setup', disp(['CONN: RUNNING SETUP STEP']); conn_process([0:5]);
Error in conn (line 2377)
conn_process('setup');
Error in conn_menumanager (line 109)
feval(CONN_MM.MENU{n0}.callback{n1}{1},CONN_MM.MENU{n0}.callback{n1}{2:end});
CONN v.15.a
SPM8 + Beamforming DEM FieldMap MEEGtools marsbar spmss vbm8
Matlab v.2012b
storage: 983.1Gb available

Thank you in advance

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TitleAuthorDate
sherihane Bensemmane Nov 30, 2015
RE: ROI problem (csf)
Alfonso Nieto-Castanon Nov 30, 2015
sherihane Bensemmane Dec 1, 2015
Alfonso Nieto-Castanon Dec 1, 2015
sherihane Bensemmane Dec 2, 2015
sherihane Bensemmane Dec 2, 2015
Alfonso Nieto-Castanon Dec 2, 2015
Jalmar Teeuw Dec 2, 2015
Alfonso Nieto-Castanon Dec 3, 2015
Jalmar Teeuw Feb 8, 2016
Alfonso Nieto-Castanon Feb 13, 2016
Jalmar Teeuw Feb 15, 2016
Alfonso Nieto-Castanon Feb 17, 2016
Bob Kraft Jun 14, 2016
Alfonso Nieto-Castanon Jun 14, 2016
Bob Kraft Jun 22, 2016
Jalmar Teeuw Dec 4, 2015
sherihane Bensemmane Dec 3, 2015