Hi everyone. I’ve been preprocessing a DWI subjects recently, and I’ve come across this kind of errors:
dwifslpreproc: [ERROR] eddy* --imain=eddy_in.nii --mask=eddy_mask.nii --acqp=eddy_config.txt --index=eddy_indices.txt --bvecs=bvecs --bvals=bvals --topup=field --slm=linear --out=dwi_post_eddy --verbose (app.py:196)
dwifslpreproc: [ERROR] Information from failed command:
dwifslpreproc:
=========
eddy_cuda
=========
===========
eddy_openmp
===========
eddy: msg=--bvecs should contain a 3xN or Nx3 matrix where N is the number of volumes in --imain
eddy: msg=Error when attempting to read --bvecs file
=========
eddy_cuda
=========
eddy_cuda: error while loading shared libraries: libcudart.so.7.5: cannot open shared object file: No such file or directory
===========
eddy_openmp
===========
terminate called after throwing an instance of 'EDDY::EddyException'
what(): eddy: msg=Error when attempting to read --bvecs file
I’ve been changing the bvals and bvecs, I’ve been checking the DICOM and the DWI to assert whether the header was correct, and I am not able to get the problem of the analysis.
The dirstat is this:
results/Suj_X.nii.gz.mif (b=0) [ 2 directions ]
Bipolar electrostatic repulsion model:
nearest-neighbour angles: mean = 90, range [ 90 - 90 ]
energy: total = inf, mean = inf, range [ 1.79769e+308 - inf ]
Unipolar electrostatic repulsion model:
nearest-neighbour angles: mean = 90, range [ 90 - 90 ]
energy: total = inf, mean = inf, range [ 1.79769e+308 - inf ]
Spherical Harmonic fit:
condition numbers for lmax = 2 -> 0: [ ]
Asymmetry of sampling:
norm of mean direction vector = 0
The mrinfo -dwgrad of the Suj_X is this:
mrinfo results/Suj_X.nii.gz.mif -dwgrad
0 0 0 0
0 0 0 0
Does someone know what is going on, and how to solve this problem?
Cheers!