Hi,
We have recently been looking in detail at the NIFTI header format, and are currently a little confused over why it does not appear to show any slice timing information (all entries relating to slice timing in the header appear to be zero). Is this actually the case, and is it perhaps why you might not recommend applying slice timing correction in FSL?
Thanks in advance,
Carol
----- Original Message -----
From: "Steve Smith" <[log in to unmask]>
To: [log in to unmask]
Sent: 29 August 2007 04:21:43 o'clock (GMT) Africa/Casablanca
Subject: Re: [FSL] slice timing correction (coronal slices)
Hi,
As long as the data has not been re-oriented - i.e. that the "Z"
dimension still corresponds to the original slicings - then the slice
timing will work fine. Note that we generally don't recommend using
slice timing correction though.
Cheers.
On 29 Aug 2007, at 00:42, Jaymin Upadhyay wrote:
> Hi,
> I wanted to perform a slice timing correction of fMRI data obtained
> in the coronal orientation and
> also in an interleaved manner. I assume that the present slice
> timing correction method in fsl3.3. or
> fsl4.0 is optimal for fMRI data obtained axially. Is this
> correct? What is the best way to perfom the
> correction of coronal (interleaved) fMRI data.
> Thanks for your time,
> Jaymin
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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
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Dr Carol Docherty
Postdoctoral MRI Scientist
Department of Neurophysics
Max-Planck Institute for Human Cognitive and Brain Sciences
Stephanstraße 1A
04103 Leipzig
Germany
Tel: +49 (0)341 99 40 291
Fax: +49 (0)341 99 40 221
Email: [log in to unmask]
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