On 8/13/2024 12:38 AM, WONG Wan Wa wrote:

External Email - Use Caution

Hi FS experts,

I want to do PET SUVR analysis using PetSurfer. When determining the FWHM of the PSF of the scanner, is it the same value for Siemens (Biograph40_mCT vs. Biograph128_mCT) or (Biograph64_Vision 600 vs. Biograph128_Vision 600 Edge)?

I don't know. Usually, there is some literature on a give system about what the PSF is.

We also have data collected with GE scanner. Are we able to use the ComBat to do harmonization for all calculated SUVR values across different sites/scanners with the use of same tracer (e.g. PiB)?

I don't know.

Thanks,

Angel

_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer