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FSL  June 2013

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Subject:

autoaq problem

From:

"Jacobs H (NP)" <[log in to unmask]>

Reply-To:

FSL - FMRIB's Software Library <[log in to unmask]>

Date:

Mon, 10 Jun 2013 11:17:16 +0200

Content-Type:

text/plain

Parts/Attachments:

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text/plain (97 lines)

Dear Anderson,

I have been using autoaq for my resting state analyses. Looking at the results in fslview, shows that the results are localized in posterior regions.
However the autoaq command shows that the results are in the frontal areas.
I think this difference stems from a difference in image dimensions.
In melodic I resampeled everything into 3mm. The dimensions of my dual regression images are provided below.
I created an atlas that fits these dimensions (with applying FLIRT on the Harvard Oxford atlas).
Unfortunately, autoaq does not provide me the correct output. I am not sure which atlas it uses or whether I can tell it to use the one that I created.

Any ideas how I can solve this? Should I warp my dual regression to fit the 1mm atlas? How can I do that?

Thanks!
Best
Heidi

sizeof_hdr     348
data_type      FLOAT32
dim0           3
dim1           60
dim2           72
dim3           60
dim4           1
dim5           1
dim6           1
dim7           1
vox_units      mm
time_units     s
datatype       16
nbyper         4
bitpix         32
pixdim0        0.0000000000
pixdim1        3.0000000000
pixdim2        3.0000000000
pixdim3        3.0000000000
pixdim4        1.0000000000
pixdim5        0.0000000000
pixdim6        0.0000000000
pixdim7        0.0000000000
vox_offset     352
cal_max        0.0000
cal_min        0.0000
scl_slope      1.000000
scl_inter      0.000000
phase_dim      0
freq_dim       0
slice_dim      0
slice_name     Unknown
slice_code     0
slice_start    0
slice_end      0
slice_duration 0.000000
time_offset    0.000000
intent         Unknown
intent_code    0
intent_name    
intent_p1      0.000000
intent_p2      0.000000
intent_p3      0.000000
qform_name     MNI_152
qform_code     4
qto_xyz:1      -3.000000  0.000000  -0.000000  90.000000
qto_xyz:2      0.000000  3.000000  -0.000000  -126.000000
qto_xyz:3      0.000000  0.000000  3.000000  -72.000000
qto_xyz:4      0.000000  0.000000  0.000000  1.000000
qform_xorient  Right-to-Left
qform_yorient  Posterior-to-Anterior
qform_zorient  Inferior-to-Superior
sform_name     MNI_152
sform_code     4
sto_xyz:1      -3.000000  0.000000  0.000000  90.000000
sto_xyz:2      0.000000  3.000000  0.000000  -126.000000
sto_xyz:3      0.000000  0.000000  3.000000  -72.000000
sto_xyz:4      0.000000  0.000000  0.000000  1.000000
sform_xorient  Right-to-Left
sform_yorient  Posterior-to-Anterior
sform_zorient  Inferior-to-Superior
file_type      NIFTI-1+
file_code      1
descrip        FSL4.1
aux_file       


================================================
Dr. Heidi Jacobs
Postdoc researcher
Faculty of Health, Medicine and Life Sciences
School for Mental Health and Neurosciences
Division Cognitive Neuropsychiatry and Clinical Neurosciences
Alzheimer Center Limburg
[log in to unmask]
www.maastrichtuniversity.nl
www.heidijacobs.nl

Dr. Tanslaan 12, 6229 ET Maastricht
P.O. Box 616, 6200 MD Maastricht, The Netherlands
T +31 43 38 84 090 F +31 43 38 84 092
================================================

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