Epilepsy Focus Localisation PET/CT
18F-FDG≈ 15 min on the scanner
In simple words
Between seizures, the misbehaving patch of brain uses less sugar than the tissue around it, and shows up as a cool spot on PET. That is often the only visible sign of a focus that MRI cannot see, and it can be the difference between lifelong medication and a curative operation.
Questions this scan answers
- Where exactly in the brain are the seizures starting?
- Could surgery cure this epilepsy?
The Prismaa difference
Subtle asymmetries are easily lost in a noisy image. Higher counts and better resolution make the comparison between the two sides genuinely reliable.
Usually recommended for
- Seizures not controlled despite two or more appropriate drugs
- Pre-surgical work-up in an epilepsy programme
- MRI-negative focal epilepsy
How to prepare
- Fast for 6 hours.
- Continue your anti-epileptic medication exactly as prescribed — do not stop it.
- Tell us the time of your most recent seizure; a very recent one changes how the scan is interpreted.
Book this scan, or ask us whether it is the right one
We are happy to discuss the request with your treating doctor before you commit to an appointment.