I tried using MRIread to look at the contents of the analysis files (using
Fressurfer 5.2.0 under OS X 10.8.3 and Matlab 2013a):
mri = MRIread('ces.nii.gz',0);
but I'm getting one-dimensional vectors:
>> mri
mri =
srcbext: ''
analyzehdr: []
bhdr: []
vol: [1x163842 double]
niftihdr: [1x1 struct]
fspec: 'ces.nii.gz'
pwd: '/Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/CS-v-OTHERS'
flip_angle: 0
tr: 2000
te: 0
ti: 0
vox2ras0: [4x4 double]
volsize: [1 163842 1]
height: 1
width: 163842
depth: 1
nframes: 1
vox2ras: [4x4 double]
nvoxels: 163842
xsize: 1.0000
ysize: 1.0000
zsize: 1.0000
x_r: -0.9999
x_a: 0.0067
x_s: -0.0150
y_r: 4.1714e-08
y_a: 0.9131
y_s: 0.4078
z_r: -0.0164
z_a: -0.4077
z_s: 0.9130
c_r: -6.8259e+04
c_a: 465.0319
c_s: -995.9002
vox2ras1: [4x4 double]
Mdc: [3x3 double]
volres: [1.0000 1.0000 1.0000]
tkrvox2ras: [4x4 double]
It's fine when I read one of the functional files (f.nii.gz).
Am I doing something wrong? Or if it is supposed to be like this, how do I
convert to XYZ coordinates? The vox2ras fields are expecting a
four-dimensional matrix.
Thanks!
Joe
--------------------------------------------------------------------------------
Joseph Dien,
Senior Research Scientist
University of Maryland
E-mail: jdie...@mac.com
Phone: 301-226-8848
Fax: 301-226-8811
http://joedien.com//
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