hmmm, I guess you should upload the subject so that we can track it down On Mon, 7 Oct 2013, Marcos Martins da Silva wrote: > Hi, Bruce. > Thank you for your fast answer. > I used a script and It took less than 15 min to process all files from all subjects, except > the 3 files (surfaces) mris_smooth seems to enter a loop. When I tried to smooth > surfLeftHippobody I waited for more than 4 hours. Comparing to the total time I needed to > process all files I concluded something was wrong and esed control + C to interrupt the > process. I tested on 2 machines (mine is running CentOS 6 and the second is a Mac, both using > Freesurfer 5.3) and got the same result. Including they seem to stop at the same point. Do you > think it could need more time to finnish processing? > Alternatively, as I can use mris_smooth to process the whole left hippocampus (the problem > only appears when processing the body segment), I guess I could get a similar and perhaps > better result if I could make a label from each of the binary masks of the 3 segments (head, > body, tail), merge them in an annot file and finally load the whole surface and the annot file > so I get the 3 segments discriminated by color. I found on Freesurfer Wiki how to merge the > labels into an annot file but not how to make the labels from the binary masks. > Thank you for your attention. > > > 2013/10/4 Bruce Fischl <fischl@nmr.mgh.harvard.edu> > how long have you waited? > > On Fri, 4 Oct 2013, Marcos Martins da Silva wrote: > > > Hi, Freesurfers > I am getting some interesting hippocampal surfaces with the following > steps: > 1- recon-all -all -hippo-subfields > 2- mri-concat (only CA1, CA23, CA4DG and the tail complement volumes) > 3- a custom OCTAVE script to segment the concatenated volume from step > 2 > into Head, Body and Tail > 4- mri_binarize Head, Body and Tail volumes from step 3 > 5- mri_tessellate the binary masks from step 4 > 6- mri_smooth the surfaces from step 5 > > Using freeview I got a screenshot showing both hippocampi segmented > (hipposurf3d.png is attached). > This approach worked well for 16 subjects up to step 5. Step 6 was > completed > as well in 13 out 16 subjects. > > The only problem was during left hippocampal body smoothing in 3 > subjects > (all the other surfaces from all 16 subjects in were smoothed with no > problem). For these 3 surfaces, mris_smooth simply freezes, with no > error > message. I must press control + C to quit the program. During the > freezing I > noticed high CPU use. > It follows the exactly command I used and the screen output. > > mris_smooth -nw -g 5 2 -a 1 -n 1 surfLeftHippoBody lh.surfHippoBody > using Gaussian curvature smoothing with norm 5.00 with 2 smooth steps > averaging curvature for 1 iterations > smoothing for 1 iterations > smoothing surface tessellation for 1 iterations... > ------------------------------------------------------ > ------------------------------------------------------ > ------------------ pass 1 (num=2853) ------------------ > ------------------------------------------------------ > ------------------------------------------------------ > > If I supress the gaussian parameters and run just something like: > mris_smooth -nw -a 1 -n 1 surfLeftHippoBody lh.surfHippoBody > or even > mris_smooth -nw surfLeftHippoBody lh.surfHippoBody > > I got the smoothed surface with no errors but the final quality is not > as > good as when I use the gaussian parameters. > I am attaching one of the problematic surface files so you can check > it > (surfLeftHippobody). Intersting if I use a surface with all left > hippocampus > (including head, problematic body and tail and) smoothing completes > without > error > Thank you very much for any help. > Marcos > > > > > > The information in this e-mail is intended only for the person to whom it is > addressed. If you believe this e-mail was sent to you in error and the e-mail > contains patient information, please contact the Partners Compliance HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in error > but does not contain patient information, please contact the sender and properly > dispose of the e-mail. > > > >