Hi All
I have 3dretroicor working with both resp and card data, as long as the 4D data set is in the original dimensions.
When I upsample or downsample isotropically ( 4 or 5mm using flirt ), retroicor throws the error:
*** Error transforming resp data
I diffed the headers and can't understand why non-time dimension inforamtion should make any difference.
My data sets are fMRI 4D nifti files,.
I tried matching everything but the i,j,k and x,y,z dim values to match. The card data always works....
Thank you in advance,
dpc
EDIT: I also tried making the dtype of the image int16. That did not help and there was a warning that the data was being
cast into float32.
### WORKING data set Header
[$ fslhd bold_native.nii
filename bold_native.nii
sizeof_hdr 348
data_type INT16
dim0 4
dim1 64
dim2 64
dim3 32
dim4 274
dim5 1
dim6 1
dim7 1
vox_units mm
time_units s
datatype 4
nbyper 2
bitpix 16
pixdim0 0.0000000000
pixdim1 3.7500000000
pixdim2 3.7500000000
pixdim3 5.0000000000
pixdim4 1.0000000000
pixdim5 0.0000000000
pixdim6 0.0000000000
pixdim7 0.0000000000
vox_offset 352
cal_max 11573.0000
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 Scanner Anat
qform_code 1
qto_xyz:1 -3.750000 0.000000 0.000000 115.530998
qto_xyz:2 0.000000 -3.750000 0.000000 145.613007
qto_xyz:3 0.000000 0.000000 5.000000 -62.979599
qto_xyz:4 0.000000 0.000000 0.000000 1.000000
qform_xorient Right-to-Left
qform_yorient Anterior-to-Posterior
qform_zorient Inferior-to-Superior
sform_name Scanner Anat
sform_code 1
sto_xyz:1 -3.750000 0.000000 0.000000 115.530998
sto_xyz:2 0.000000 -3.750000 0.000000 145.613007
sto_xyz:3 0.000000 0.000000 5.000000 -62.979599
sto_xyz:4 0.000000 0.000000 0.000000 1.000000
sform_xorient Right-to-Left
sform_yorient Anterior-to-Posterior
sform_zorient Inferior-to-Superior
file_type NIFTI-1+
file_code 1
descrip FSL5.0
aux_file
#NOT WORKING
fslhd bold_5mm_cal.nii
filename bold_5mm_cal.nii
sizeof_hdr 348
data_type FLOAT32
dim0 4
dim1 47
dim2 47
dim3 31
dim4 274
dim5 1
dim6 1
dim7 1
vox_units mm
time_units s
datatype 16
nbyper 4
bitpix 32
pixdim0 0.0000000000
pixdim1 5.0000000000
pixdim2 5.0000000000
pixdim3 5.0000000000
pixdim4 2200.0000000000
pixdim5 0.0000000000
pixdim6 0.0000000000
pixdim7 0.0000000000
vox_offset 352
cal_max 11573.0000
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 Scanner Anat
qform_code 1
qto_xyz:1 -5.000000 0.000000 0.000000 109.280998
qto_xyz:2 0.000000 -5.000000 0.000000 145.613007
qto_xyz:3 0.000000 0.000000 5.000000 -62.979599
qto_xyz:4 0.000000 0.000000 0.000000 1.000000
qform_xorient Right-to-Left
qform_yorient Anterior-to-Posterior
qform_zorient Inferior-to-Superior
sform_name Scanner Anat
sform_code 1
sto_xyz:1 -5.000000 0.000000 0.000000 109.280998
sto_xyz:2 0.000000 -5.000000 0.000000 145.613007
sto_xyz:3 0.000000 0.000000 5.000000 -62.979599
sto_xyz:4 0.000000 0.000000 0.000000 1.000000
sform_xorient Right-to-Left
sform_yorient Anterior-to-Posterior
sform_zorient Inferior-to-Superior
file_type NIFTI-1+
file_code 1
descrip FSL5.0
aux_file
Edited 1 time(s). Last edit at 01/13/2014 07:41PM by danielcuneo.
