On Fri, 29 Jan 1999, Sergio Carvalho wrote:
> Hi,
>
> Does anyone have experience on the results of spatial normalization on
> stroke patients? I have a scan of a stroke patient, where a reduced
> perfusion area is easily perceivable. However, after spatial
> normalization the dark area completely vanishes. Why?
Hi Sergio,
Are you using non-linear normalisation? If so it is possible this might
happen and we have seen this in SPECT. What is your image modality?
Regards - Mike
--
_____________________________________________________________________
Mike Glabus PhD, Principal Physicist
MRC Brain Metabolism Unit Tel Intl: 44-(0)131 537 6818/6282
Royal Edinburgh Hospital FAX Intl: 44-(0)131 537 6110
Morningside Park Pager : 5236, via 0131 537 6000
Edinburgh, EH10 5HF, SCOTLAND
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