Re: [Freesurfer] BVECS and BVALS file

2014-02-18 Thread Alan Francis
That helps a lot. Thanks Anastasia: best, Alan On Mon, Feb 17, 2014 at 11:04 PM, Anastasia Yendiki < ayend...@nmr.mgh.harvard.edu> wrote: > > Hi Alan - If you're using a standard MGH diffusion sequence and you have a > Martinos account, look for the appropriate gradient table in this directo

Re: [Freesurfer] BVECS and BVALS file

2014-02-17 Thread Anastasia Yendiki
Hi Alan - If you're using a standard MGH diffusion sequence and you have a Martinos account, look for the appropriate gradient table in this directory: $FREESURFER_HOME/diffusion/mgh-dti-seqpack/ You'll have to find out how many gradient directions are in your data (that's the number

Re: [Freesurfer] BVECS and BVALS file

2014-02-17 Thread Alan Francis
Hi Anastasia: Yes I am using a standard MGH diffusion sequence. thanks, Alan On Fri, Feb 14, 2014 at 10:20 PM, Anastasia Yendiki < ayend...@nmr.mgh.harvard.edu> wrote: > > Hi Alan - The gradient table is not saved in the nifti header. Are you > using a standard MGH diffusion sequence? > > a.y

Re: [Freesurfer] BVECS and BVALS file

2014-02-14 Thread Anastasia Yendiki
Hi Alan - The gradient table is not saved in the nifti header. Are you using a standard MGH diffusion sequence? a.y On Fri, 14 Feb 2014, Alan Francis wrote: Hi Anastasia: Hope all is well. I have DTI data for 65 brains. They are in nifti format. However, they do not have the bvecs and bvals

[Freesurfer] BVECS and BVALS file

2014-02-14 Thread Alan Francis
Hi Anastasia: Hope all is well. I have DTI data for 65 brains. They are in nifti format. However, they do not have the bvecs and bvals information. I searched the web but they only have the conversion information for dicom files. I opened the header on MRICRON but how does one convert these valu