The ssw images are the versions that you created. By default,
smoothing is combined with warping to give sw images. I don't know
where the w images came from though.
Best regards,
-John
On 23 December 2010 15:07, Xu, Ben (NIH/NINDS) [E] <[log in to unmask]> wrote:
> 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.
>
> Ben
>
> -----Original Message-----
> 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
>
> Hi,
>
> 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.
>
> Ben
>
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