Ok.


bedpostx_datacheck gives the following response:

/home/fsl/Desktop/subject1/dti/nodif_brain_mask does not exist
num lines in /home/fsl/Desktop/subject1/dti/bvals
cat: /home/fsl/Desktop/subject1/dti/bvals: No such file or directory
0
 num words in /home/fsl/Desktop/subject1/dti/bvals
cat: /home/fsl/Desktop/subject1/dti/bvals: No such file or directory
0
 num lines in /home/fsl/Desktop/subject1/dti/bvecs
cat: /home/fsl/Desktop/subject1/dti/bvecs: No such file or directory
0
 num words in /home/fsl/Desktop/subject1/dti/bvecs
cat: /home/fsl/Desktop/subject1/dti/bvecs: No such file or directory
0

Ignacio

2010/12/6 Stamatios Sotiropoulos <[log in to unmask]>

Hi Ignacio,

what is the output of bedpostx_datacheck on the input directory?

Stam

On 6 Dec 2010, at 11:23, Ignacio Letelier wrote:

Hi Stamatios

I recieved this message after doing BEDPOSTX:

Errors: child process exited abnormally

But there's also a new file in the directory called bedpostcom_log.tcl wich contains the whole directory name plus  -n2 -w1 -b 1000

Thanks Stamatios

2010/12/3 Stamatios Sotiropoulos <[log in to unmask]>

Could you please run bedpostx_datacheck on the directory containing the data and bvecs, bvals files? What is the output?

 

Cheers,

Stam

----- Original Message -----

From: [log in to unmask]" href="mailto:[log in to unmask]" target="_blank">Ignacio Letelier

To: [log in to unmask]" href="mailto:[log in to unmask]" target="_blank">[log in to unmask]

Sent: Friday, December 03, 2010 6:38 PM

Subject: Re: [FSL] DTIFIT Error

Stamatios thanks for your reply

I've just checked the number of entries in bvals and bvecs files and there are 33 entries in each one wich means 33 directions. My acquisition parameters are: TR/TE 9000/65 ms,  80 slices, Nr b-values=2 and 33 directions (inc b=0),  so I guess it might be not the problem.

Any idea about what would be the problem?

By the way what software do you use to extract bvals and bvecs files?

 Thanks.

2010/12/3 Stamatios Sotiropoulos <[log in to unmask]>

Hi Ignacio,

 

the first thing I would try is to check that the number of entries in bvals and bvecs files is the same as the number of volumes in the data file.

 

Hope this helps,

Stam

 

----- Original Message -----

From: [log in to unmask]" href="mailto:[log in to unmask]" target="_blank">Ignacio Letelier

To: [log in to unmask]" href="mailto:[log in to unmask]" target="_blank">[log in to unmask]

Sent: Friday, December 03, 2010 5:12 PM

Subject: [FSL] DTIFIT Error

Hi everyone.

I'm working with the DTIFIT Reconstruct diffusion tensors tool and I recieved the following message after
pressing the 'Go'  button:

Errors: terminate called after throwing an instance of 'NEWMAT::Incompatible Dimensions Exception'

I've never recieved this message before, so I'm not pretty sure what this could mean.

Any help will be greatly appreciated

Thanks in advance
--
ignacio

--
Ignacio Letelier Aguirre
Ingeniero Civíl Biomédico
Clinica Santa María.
Teléfono: 97139955

--
Ignacio Letelier Aguirre
Ingeniero Civíl Biomédico
Clinica Santa María.
Teléfono: 97139955

--
Ignacio Letelier Aguirre
Ingeniero Civíl Biomédico
Clinica Santa María.
Teléfono: 97139955