Just to add to my previous message (see below), I also applied a separate step in smoothing the EPI images after "Normalization to MNI space." Is that why I got the ssw images? Does Dartel Normalization automatically give a set of smoothed images?
Thanks for your help.
From: Xu, Ben (NIH/NINDS) [E]
Sent: Thursday, December 23, 2010 9:33 AM
To: [log in to unmask]
Subject: Dartel normalization of EPI images
I'm new to using Dartel to normalize EPI images. I'd like to confirm if what I did is correct. Here's what I did. (All subjects' T1 images are coregistered with the subject's own EPI images.)
1. For all subjects' T1 images: Run New Segment > Create Templates (with rc1 images) > Normalise to MNI space (with flow fields and c1 images).
2. For EPI images: Run Normalise to MNI space with Template_6 and the subject's own u_rc1 flow field from Step 1 above.
Are these correct steps?
Also, at the end, I got three sets of EPI images from Step 2: w..nii, sw..nii, and ssw..nii. What are the ssw images? What's the difference between the sw and ssw images?
Thank you very much for your help.