Dear FSL experts,
Would you describe how to extract the AIF and replicate it for every voxel or alternatively which tools can be used to for automated extraction of AIF? Thanks.
John
-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Michael Chappell
Sent: Monday, June 27, 2016 3:38 AM
To: [log in to unmask]
Subject: Re: [FSL] How to get "AIF.nii" when using verbena command
There are various ways to get an AIF, the simplest being to identify a major artery in your image and then using that time series. You would need to extract that and then replicate it to every voxel - as verbena gives you the option to specify a ‘local’ AIF for every voxel if you have one. There are other tools that specifically provide automated methods for the extraction of an AIF for DSC.
Michael
> On 24 Jun 2016, at 20:41, SUBSCRIBE FSL Anonymous <[log in to unmask]> wrote:
>
> Dear FSL experts,
> I am using Verbena command to calculate DSC perfusion map.
> According to the guideline, https://urldefense.proofpoint.com/v2/url?u=http-3A__fsl.fmrib.ox.ac.uk_fsl_fslwiki_verbena_UserGuide&d=CwIGaQ&c=6vgNTiRn9_pqCD9hKx9JgXN1VapJQ8JVoF8oWH1AgfQ&r=wkVIGngRcoC1dQihrNIdlbsL-rELVLqzVzKqHJjctn0&m=ciS4sOdQpbVL1iJwUaCOgHveZGgE4-27EsoHlOBDHUU&s=HDWQuerhPEPLXdFntulfltOuHAem0LEOIvgQjARiORo&e=
> we need to provide AIF.nii file. I am wondering how can I make it?
>
> We only have raw perfusion images from scanner.
>
> Thanks
> Lawrence
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