[Camino-users] schemefile generation -problem is solved

[stefania oliviero]

Hi Uran,
Thank you so much! 
I did not know Stejskal-Tanner version of schemefile and now the problem is solved.

Cheers 
Stefania Oliviero
From: uran.ferizi.10 at ucl.ac.uk
To: stefania.oliviero at hotmail.it; camino-users at www.nitrc.org
Subject: RE: [Camino-users] schemefile generation
Date: Mon, 24 Mar 2014 08:39:47 +0000








Hello Stefania,





If you asked about how to write a Stejskal-Tanner scheme file, which is a text file, you could use Matlab.





After constructing the matrix, e.g.: 

ST_scheme=[directions; |G|;  DELTA; delta TE];

you can write it out via:





scheme_str=strcat('data.scheme');

dlmwrite(scheme_str, ST_scheme, 'delimiter', ' ', 'precision', '%.6f');

% write first line

dlmwrite('output.txt', 'VERSION: STEJSKALTANNER', 'delimiter', '');

% append rest of file

dlmwrite('output.txt', fileread(scheme_str), '-append', 'delimiter', '');

% overwrite on original file

movefile('output.txt', scheme_str);











From: camino-users-bounces at www.nitrc.org <camino-users-bounces at www.nitrc.org> on behalf of stefania oliviero <stefania.oliviero at hotmail.it>

Sent: 24 March 2014 7:35 AM

To: camino-users at www.nitrc.org

Subject: [Camino-users] schemefile generation
 



Hi All, 

I have a question about the generation of a schemefile. I have an acquisition scheme like this:



nx ny nz  delta  DELTA  G      TE



0   0   0     0       0          0     30

5   10 0     8       20        80   50

... 



with nx, ny and nz as gradient directions. 

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?

The only scheme file version explained in the DTI tutorial is the BVECTOR one. 

VERSION: BVECTOR
nx_1 ny_1 nz_1 b1
Thanks a lot

Cheers



Stefania Oliviero

Università degli Studi di Napoli Federico II

ITAB, Università degli Studi G. d'Annunzio di Chieti





 		 	   		  
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