TABLE 2

Patterns of BGH: Results of SPECT Subtraction

Basal gangliaGroup 1* (n = 18)Group 2 (n = 15)Total (n = 33)
Hyperperfusion11 (61.1)11 (73.3)22 (66.7)
    Ipsilateral6 (33.3)7 (46.7)13 (39.4)
    Contralateral§3 (16.7)1 (6.7)4 (12.1)
    Bilateral2 (11.1)3 (20)5 (15.2)
No hyperperfusion7 (38.9)4 (26.7)11 (33.3)
  • * Patients with only temporal lobe hyperperfusion.

  • Patients with temporal and frontal hyperperfusion.

  • Ipsilateral to epileptic focus.

  • § Contralateral to epileptic focus.

  • Values in parentheses are percentages.