Reply-To: | | [log in to unmask][log in to unmask]> > Subject: Re: Coregistration and normalisation > > On Tue, 22 Apr 2008 00:38:50 +0100, Vivien Tsen <[log in to unmask] > >=20 > wrote: > > >Based on previous posts, the advantage of using structural (T1-weighted)= > =20 > >image for co-registration and spatial-normalization as opposed to=20 > >normalizing functional images directly to the EPI template is that: > > 1. T1-weighted images have higher spatial resolution which should=20= > > allow=20 > >better overlap with the corresponding structures in the template. > > 2. there is the issue of EPI distortion variability in subjects > and=20= > > >that of the template (which would be less of an issue in structurals). > > > >My question is: > >if the EPI images are prone to distortion, it is quite likely that > the=20= > > >functional image (EPI) and the structural image (T1-weighted) cannot > be=20= > > BRm |