Hi: I am trying out the recon-all command with the -stage1 workflow. The Cannonical Registration ( mri_ca_register) runs for many many hours. I have not found much reference regarding this step. It is not mentioned in the help in the -stage1 section, nor is it mentioned under step-wise directives. Is this a necessary step if I'd just like to have basic segmentation and being able to proceed to the manual editing procedure?
Thank you, Yuan-Fen Kuo Associate Imaging Processing Specialist Waisman Laboratory for Brain Imaging and Behavior University of Wisconsin - Madison