Does Tracula assume that the number of B0 scans, specified in Step 7.3 of the config file tutorial (below), are the first X number of volumes in the 4Dnii.gz file or will the Tracula routines know from the bvals file where the B0 scans are ordered in the file? For example, I have two runs of 16 directions + 2 B0s each for each of my subjects. I have merged the two runs together and the resulting file has the volumes ordered such that the bvals are entered into Tracula as follows:

My question pertains to the following part of the Tracula config file:

Step7.3: Specifying Number Of low-b Images The last step to set up if not using original DICOMs would be to specify the number of low-b images with the following variable:

set nb0 = *No. of low-b images*

Thank you in advance for your help.

Cheers,

Deryk

Deryk S. Beal, Ph.D., CCC-SLP, S-LP(C), Reg. CASLPO
Speech-Language Pathologist
C.I.H.R. Post Doctoral Research Fellow
Department of Cognitive and Neural Systems Speech Laboratory
Boston University, 677 Beacon Street, Boston, MA 02215
dsbeal@bu.edu
http://blogs.bu.edu/dsbeal/about/
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