Hello Freesurfers,

I have  6 runs of DTI data per subject in a sample of 50, and I want to unpack the dicoms, so it outputs the bval bvec values, to use in dt_recon.
I realized I can use either dcm2nii or mri_convert to do this.
Could you please let me know what the command should be? and also should I do it separately for each run? subject’s scan info is attached.
I used the below command in dev environment but didn’t get any bval bvec values. 

mri_convert /${subj}/IMAGES/IM01113 /${subj}/DTI/IM_13.nii

Appreciate your help.
Mona


1            Localizer  ok  512 512  13   1 IM00269
  2      SagT2FLAIRSPACE  ok  512 512 176   1 IM00273
  3      SagT2FLAIRSPACE  ok  512 512 171   1 IM02084
  4 SagT1MPRAGE1mmiso_P3  ok  256 256 176   1 IM00449
  5      SagT2FLAIRSPACE  ok  512 512 227   1 IM02311
  6 SagT1MPRAGE1mmiso_P3  ok  256 256 171   1 IM02482
  7 SagT1MPRAGE1mmiso_P3  ok  256 256 239   1 IM02721
  8            AxWaveSWI  ok  288 252  88   1 IM00793
  9            AxWaveSWI  ok  288 252  88   1 IM00881
 10            AxWaveSWI  ok  288 252  81   1 IM00705
 11            AxWaveSWI  ok  288 252  88   1 IM00969
 12            Diffusion  ok  990 990   1  70 IM00970
 13            Diffusion  ok  110 110  74   1 IM01113
 14            Diffusion  ok  110 110  74   1 IM01187
 15            Diffusion  ok  110 110  74   1 IM01261
 16            Diffusion  ok  110 110  74   1 IM01335
 17            Diffusion  ok  110 110   1  74 IM01336


Zahra (Mona) Nasiriavanaki, M.D.
Postdoctoral Research Fellow
Department of Psychiatry | MGH/HMS
149 13th Street, 149-2615
Boston, MA, USA, 02129