Re: [Freesurfer] rcbf-prep outputting negative values

2014-10-22 Thread Douglas N Greve
I'm not sure that anyone is maintaining this code any more. However, you can try running mri_convert --nskip 1 asl.nii asl.skip.nii and then use asl.skip.nii as input. This just removes the 1st frame so that the tag/control will be in the expected order doug On 10/22/2014 10:29 AM, Asif Jam

[Freesurfer] rcbf-prep outputting negative values

2014-10-22 Thread Asif Jamil
Hello, I have pcASL data from a Siemens 3T scanner which I would like to process using the provided rcbf-prep command. The process completes smoothly without error. However when I inspect my roi.dat file, I observe that all the ROI values are actually negative, and seem to be beyond physiologic