Thanks.
Does it matter if the b-value is not exactly zero but very low (e.g. 5
s/mm^2)?
Cheers,
Andreas
Am 22.12.12 18:43 schrieb "Saad Jbabdi" unter <[log in to unmask]>:
>d) doesn't matter - eddy knows where the b0s are from the bvals and knows
>what the PE direction is from the --acqp entry.
>
>Cheers
>Saad
>
>
>On 22 Dec 2012, at 17:32, Andreas Bartsch wrote:
>
>> Hi (Jesper?),
>>
>> I was wondering how the new eddy tool handles multiple B0 images given
>> that these are interspersed at regular intervals into the acquisition of
>> the diffusion-weighted scans.
>> Should the B0 images of identical phase encoding:
>> a) be left (in the 4th dimension) as recorded
>> b) be reordered so that all of them come first
>> c) motion-corrected and averaged and put first
>> d) does it matter for eddy at all?
>> Thanks and merry Xmas,
>> Andreas
>>
>
>--
>Saad Jbabdi
>University of Oxford, FMRIB Centre
>
>JR Hospital, Headington, OX3 9DU, UK
>(+44)1865-222466 (fax 717)
>www.fmrib.ox.ac.uk/~saad
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