Dear FSL users,
I have a question about topup and problem with applytopup.
1. I would like to ensure that my exam protocol and post processing are correct. I have one sequence of multi b DWI in A>P phase dir. and second sequence with only b = 0 in P>A phase dir. My idea is run topup only to b = 0 images from both sequences and then run applytopup only to first sequence (multi b). Is this idea correct? I cannot do both b= 0 A>P and P>A in one sequence so some motion registration will be need.
2. I did topup only to b = 0 images and the results looks good. But when I tried to run applytopup to multi b values sequences the error message appeared: “ Invalid combination od phase-encode vectors for least-squares restoration”. Could you help me how can I fix this error?
Thank you
Marek
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