Table 1.

PET findings in the area of seizure focus in patients with epilepsy

PET study	Findings
Interictal 18F-FDG	Usually reduced metabolism
Ictal 18F-FDG	Increased and decreased metabolism (complex pattern)*
Post-ictal 18F-FDG metabolism**	Complex pattern, increased or decreased
GABAA-cBZR receptor	Reduced binding
Opioid receptor	Increased mu and delta receptor bindings
Serotonin receptor	Reduced binding
Dopamine receptor	Reduced binding
11C-alpha-methyl-L-tryptophan	Increased uptake
Interictal 15O-H2O	Usually reduced perfusion
Ictal 15O-H2O	Increased perfusion

^*due to long brain uptake period of FDG;

^**depending on the time of injection after seizure.