[Intl_DxMedPhys] Discovery IQ PET/CT Protocol help

[Mike Nimmo]

Hello,

I have a customer who has received delivery of a GE Discovery IQ PET/CT 5
ring system. Their PET radiologist is unhappy with the BGO system's PET
image quality for medium to large patients. I was hoping someone out there
with a 3 or 5 ring PET/CT system could share their experience and maybe
some protocol details with me to pass along.

Particular concerns involve SUV overshoot when detecting small
lesions. Also the image quality on medium to large adults is noisy and
unsatisfactory. Some things we've been trying to improve image quality are
below:

1. Try turning on Q.Clear with Beta values of 200, 250, and 300
2. Increase bed overlap from 19 slices to 35 slices.
3. Changing bedstop acquisition time to 200 seconds or 400 seconds per bed
stop for medium to large patients.
4. Using Z-axis standard for small to medium patients and Heavy for larger
patients.
5. using Sharp IR

They are still struggling with image quality and SUV accuracy.

Additionally the radiologist appears doubtful whether this scanner will be
effective for imaging PSMA or Dotatate studies.

I do not have much experience on this scanner platform so I would
appreciate any assistance.

Thanks,

-- 
Mike Nimmo
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osu.edu/pipermail/intl_dxmedphys_wd_osu_list/attachments/20260514/a364fd7e/attachment.html>