Hi, sorry for the many months to get back to you. I have just updated the documentation on https://surfer.nmr.mgh.harvard.edu/fswiki/PetSurfer to indicate how to use your own segmentations. I'm assuming that you have a volume with choroid plexus labeled that you want to merge into the stream. Take a look and see if that does what you want.

On 9/26/2023 2:42 PM, Emma Tinney wrote:

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Hi

I am reaching out to ask some questions about PetSurfer. I am working with an open access dataset (ADNIDOD) to analyze neurobiological differences in veterans with a history of TBI. I am hoping to use the PET data (there are the raw dicoms and preprocessed PET data) to segment the choroid plexus using a specific segmentation software. I have already done the segmentation on the T1 images, but am hoping to apply the masks to the preprocessed PET images. I was looking at using the “mri_gtmpvc” command to segment the choroid plexus using the mask I already created but was hoping for some guidance.

There are also several options of preprocessed PET data I can chose from, including “co-registered averaged standardized image and voxel” including “co-registered averaged standardized image and voxel with unform resolution” and “co-registered averaged” or “co-registered dynamic”.

If anyone are willing to help or can connect me to someone how might have time to reply or quickly chat, that would be great. I appreciate the support and am looking forward to using PetSurfer.
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