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Yes that would also work. We have actually found that the FA often gives a better registration than the b0 to T1 images, but that would require running DTIFIT. Peace, Matt. -----Original Message----- From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Yoshiko Yamada Sent: Monday, October 01, 2007 12:39 PM To: [log in to unmask] Subject: Re: [FSL] overlaying DTI b0 images onto structural images Thank you for your information, Steve. My understanding is that the registration option in FDT requires BEDPOST directory, so this means that we need to run BEDPOST to run the registration option. Am I right? I'm wondering if, in FLIRT GUI, we could choose the "Low res image --> High res image --> Reference image" opetion, enter a b0 image as the Low res image and structural as the High res image, and have the b0 and structural registered (without running BEDPOST, which requires a long processing time). Thank you again for your advice! -Yoshiko On Sat, 29 Sep 2007 08:03:06 +0100, Steve Smith <[log in to unmask]> wrote: > Hi - if you use the registration option in the FDT GUI, you will end > up with transformations between diffusion space and structural space > (and standard space). > You can use ApplyXFM GUI to apply the relevant transform to get the > B0 image into the right space for overlaying on top of the structural > for validation. > Cheers. > > > On 28 Sep 2007, at 20:50, Yoshiko Yamada wrote: > > > Dear List, > > > > I'm wondering if there is a way to overlay DTI b0images onto the > > structural image of the same > > subject. I'd like to check data quality (especially subtle EPI > > distortion) before starting full analysis. I > > understand that, in FSL View, b0 images have to have the same > > resolution and FOV as the > > structural image to be overlaid. Is there any other way we can > > overlay these two types of images? > > > > Thank you for your input! > > > > -Yoshiko > > > > > > -- > > Yoshiko Yamada, Ph. D > > Research Associate > > Brain Development Lab > > Psychology Department > > 1227 University of Oregon > > Eugene, OR 97403-1227 > > Phone: 541-346-4841 > > Fax: 541-346-4271 > > > ------------------------------------------------------------------------ > --- > Stephen M. Smith, Professor of Biomedical Engineering > Associate Director, Oxford University FMRIB Centre > > FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve > ------------------------------------------------------------------------ > --- >