Thank you for your quick reply
I have included the fslinfo reports below.
they both have the same dimensions, however the ASL image is only a 3D image where as the fmri data file is 4D. Is this the problem?
Many thanks
Martyn
ASL:
data_type FLOAT32
dim1 64
dim2 64
dim3 47
dim4 1
datatype 16
pixdim1 3.0000000000
pixdim2 3.0000000000
pixdim3 3.5000000000
pixdim4 1.0000000000
cal_max 0.0000
cal_min 0.0000
file_type NIFTI-1+
4D Data:
data_type INT16
dim1 64
dim2 64
dim3 47
dim4 267
datatype 4
pixdim1 3.0000000000
pixdim2 3.0000000000
pixdim3 3.5000000000
pixdim4 6.0000000000
cal_max 27888.0000
cal_min -608.0000
file_type NIFTI-1+
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