Hi Rick,
Thanks for the recommendations. I think there is not a problem with DICOM files in this case. Indeed, the information is the same if I compare the runs which did not have the motion problem with the ones with the motion problem. What can I do to handle this issue? I know that motion in general is a real problem and evidence shows that it can be mitigated until some point (doing alignment and regressing the motion parameters). But, this case is quite special since just one parameter is importantly higher than the orders. Are there any options to solve this?
Karel