Hi - if you're using the "tbss_2_reg -T" option then this is
straightforward, yes.
When you run tbss_3_postreg, if you use the -S option it will create a
mean_FA and skeleton using the data you have, so you may want to
combine all the new data and rerun that, alternatively if you use the -
T option then you can just run tbss_3_postreg separately on each
batch, as well as tbss_4_prestats, and then just combine the
all_FA_skeletonised files later (e.g. with fslmerge -t). Note though
that as the numbers grow you will need a 64-bit machine with large RAM
to run the tbss_4_prestats and randomise stages.
Cheers.
On 29 Apr 2008, at 21:53, Mithra wrote:
> Hello,
>
> We have an ongoing study and analyzing the DTI data using TBSS.
> This is a long term ongoing study. We get about 60-70 subjects
> every 4 months. I analyze the DTI data in groups. Will that be a
> problem. I ran TBSS ( The first 3 steps of registration) on subjects
> 1-70 and got the FA values etc. Can I run TBSS in another folder for
> subjects 71-140 and compare the FA values with the previous group.
>
>
> Thanks.
> --
> Regards,
> Mithra
>
> Imaging Research Center
> University of Texas, Austin
> 3925-B W Braker Lane
> Austin. TX - 78759
> Tel: (512) 232-5725
> Fax: (512) 232-4202
>
> www.irc.utexas.edu
---------------------------------------------------------------------------
Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
---------------------------------------------------------------------------
|