Hi,
just to add to MJ's response:
The only other thing I can think of that you i) don't get simultaneous
magnitude / phase reconstructions and ii) specified the parameter slightly
different for the two acquisitions.
Quite unlikely though...
Cheers,
Andreas
Am 26.09.12 18:27 schrieb "Mark Jenkinson" unter <[log in to unmask]>:
>Hi,
>
>This is not something that we see and is a real problem.
>It is very difficult to register the phase image to the magnitude image
>and so all of our processing assumes that they are exactly in alignment
>from the outset (since they should be derived from the *same* complex
>images - and so I don't see how this could happen). I would investigate
>the dicom to nifti conversion at your end first.
>
>All the best,
> Mark
>
>
>On 26 Sep 2012, at 17:09, Daniel CM <[log in to unmask]> wrote:
>
>> Hi all
>>
>> I was wondering if it is a common problem with SIEMENS scanners to have
>>different sizes? In our case, from a SIEMENS Trio
>>
>> The magnitude is 96 x 96 x 50, 2 x 2 x 2.0816326141
>> The phase is 96 x 96 x 52, 2 x 2 x 2.
>>
>> I seem to remember something like this happening when I used to scan at
>>the OCMR, and I noticed in the fsl_prepare_fieldmap scripts in mentions
>>a fix_OCMR_fieldmap script, which I can't find on the web anywhere. Is
>>there a simple way to make the magnitude usable with the phase image?
>>
>> Cheers very much
>> Dan CM
>>
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