Anil Roy wrote:
Hello All,
I wanted to convert the brainmask volume to analyze format. I'm not
very familiar with the analyze format and had two questions.
1) The wiki mentions that converting to SPM-Analyze format could
involve converting to multiple or single frames. What exactly are
multiple or single frames? Are they just different slices?
This refers to different time points. Eg, in a functional run, you
might have 100 time points. Each of these is a frame.
2) When converting, I get the message INFO: set
hdr.hist.orient to 'coronal flipped'. What does that refer to?
That is a field in the analyze header that is supposed to indicate the
orientation.
I have posted the output from mri_convert below.
Thanks,
Anil.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
[root@slr08 freesurfer]# mri_convert -ot spm
$SUBJECTS_DIR/O-06-002/mri/brainmask.mgz /root/test.img
mri_convert -ot spm
/mnt/win/MRI_data/MWIN4/Freesurfer//O-06-002/mri/brainmask.mgz
/root/test.img
$Id: mri_convert.c,v 1.146 2007/07/26 19:26:26 greve Exp $
reading from
/mnt/win/MRI_data/MWIN4/Freesurfer//O-06-002/mri/brainmask.mgz...
TR=2300.00, TE=3.36, TI=900.00, flip angle=9.00
i_ras = (-1, 0, 0)
j_ras = (0, 0, -1)
k_ras = (0, 1, 0)
writing to /root/test.img...
Analyze Output Matrix
-1.000 0.000 0.000 129.678;
0.000 0.000 1.000 -82.220;
0.000 -1.000 0.000 140.347;
0.000 0.000
0.000 1.000;
--------------------
INFO: set hdr.hist.orient to 'coronal flipped'
[root@slr08 freesurfer]#
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