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<p>Hello Stefania,</p>
<p><br>
</p>
<p>If you asked about how to write a Stejskal-Tanner scheme file, which is a text file, you could use Matlab.</p>
<p><br>
</p>
<p>After constructing the matrix, e.g.: </p>
<p><em>ST_scheme=[directions; |G|; DELTA; delta TE];</em></p>
<p>you can write it out via:</p>
<p><br>
</p>
<p><em>scheme_str=strcat('data.scheme');</em><br>
<em>dlmwrite(scheme_str, ST_scheme, 'delimiter', ' ', 'precision', '%.6f');</em><br>
<em>% write first line</em><br>
<em>dlmwrite('output.txt', 'VERSION: STEJSKALTANNER', 'delimiter', '');</em><br>
<em>% append rest of file</em><br>
<em>dlmwrite('output.txt', fileread(scheme_str), '-append', 'delimiter', '');</em><br>
<em>% overwrite on original file</em><br>
<em>movefile('output.txt', scheme_str);</em></p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> camino-users-bounces@www.nitrc.org <camino-users-bounces@www.nitrc.org> on behalf of stefania oliviero <stefania.oliviero@hotmail.it><br>
<b>Sent:</b> 24 March 2014 7:35 AM<br>
<b>To:</b> camino-users@www.nitrc.org<br>
<b>Subject:</b> [Camino-users] schemefile generation</font>
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<div dir="ltr">Hi All, <br>
I have a question about the generation of a schemefile. I have an acquisition scheme like this:<br>
<br>
nx ny nz delta DELTA G TE<br>
<br>
0 0 0 0 0 0 30<br>
5 10 0 8 20 80 50<br>
... <br>
<br>
with nx, ny and nz as gradient directions. <br>
How can I report all these information in a scheme file? I would like to explicit in the file.scheme the values of delta, DELTA, G and TE. Which schemefile version can I use, please?<br>
The only scheme file version explained in the DTI tutorial is the BVECTOR one. <br>
<pre class="escaped">VERSION: BVECTOR
nx_1 ny_1 nz_1 b1</pre>
Thanks a lot<br>
Cheers<br>
<br>
Stefania Oliviero<br>
Università degli Studi di Napoli Federico II<br>
ITAB, Università degli Studi G. d'Annunzio di Chieti<br>
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