Hi,
Thank you for additional information about the data conversion.
I have additional question related to DR_BUDDI module. I’ve successfully preprocessed blip_down and blip_up datasets with DIFPREP command as described on this page:
[
afni.nimh.nih.gov]
It is mentioned in the tutorial that DR_BUDDI performs EPI distortion correction and then combines both datasets into one. As I understood, after the correction it performs averaging of 4D images and b-matrix files. In my case the blip_down dataset starts with b=1000 images and blip_up dataset starts with b=300 images. The order of the values in the b-matrix files corresponds to the order of DWI images in 4D nifti files. Does the order of DWI volumes in blip_up and blip_down datasets have to be the same and one have to rearrange the files?
Regards,
Maksym