Re: [Freesurfer] Getting combined bvals/bvecs

2016-11-21 Thread Yendiki, Anastasia
urfer-boun...@nmr.mgh.harvard.edu] on behalf of Marissa Pifer [marissapi...@gmail.com] Sent: Monday, November 14, 2016 1:44 PM To: Freesurfer support list Subject: Re: [Freesurfer] Getting combined bvals/bvecs Hi Anatasia, Thank you for your reply, I'm sorry for responding so later, I have b

Re: [Freesurfer] Getting combined bvals/bvecs

2016-11-14 Thread Marissa Pifer
Hi Anatasia, Thank you for your reply, I'm sorry for responding so later, I have been trying a few different things in order to get tracula to work. I did what you suggested and compiled the bvals and bvecs into one file, in the same order as the images. This got me further, but the trac-all -prep

Re: [Freesurfer] Getting combined bvals/bvecs

2016-09-14 Thread Anastasia Yendiki
Hi Marissa - You have to specify as many b-values and gradient vectors as there are volumes in your DWI data file. This means that, if you combine the AP and PA volumes, you also have to concatenate the bvals from the two into one file, and do the same with the bvecs. Make sure that the order

[Freesurfer] Getting combined bvals/bvecs

2016-09-14 Thread Marissa Pifer
Hello freesurfer experts, I am trying to run tracula on subjects that have separate AP/PA direction DTI files. We combined the data into one using topup, and would now like to run tracula on the subject. The problem is, the combined file doesn't have a bvals/bvecs file. When I try to use the origi