Table 1 Clinical features, EEG and MRI findings, and histopathology.
CLINICAL FEATURES (n = 15) | |||
|---|---|---|---|
Male, n (%) | 9 (60%) | ||
Age at MRI in y, median (IQR) | 11.5 (2.0–13.7) | ||
Age at epilepsy onset in y, median (IQR) | 1.2 (0.3–5.8) | ||
Epilepsy duration in y, median (IQR) | 1.1 (0.8–4.5) | ||
Seizure frequency | Seizure free* | 5 (33%) | |
< 30 seizures | 5 (33%) | ||
≥ 30 seizures | 5 (33%) | ||
History of status epilepticus, n (%) | 5 (33%) | ||
Sedation for MRI acquisition (n = 18), n (%) | 10 (56%) | ||
ASM at MRI (n = 18), n (%) | No ASM | 3 (17%) | |
One ASM | 6 (33%) | ||
Two or more ASM | 9 (50%) | ||
EEG FINDINGS (n = 18) | |||
Focal slowing, n (%) | 11 (61%) | ||
Spikes, n (%) | 15 (83%) | ||
Frequent spikes, n (%) | 8 (44%) | ||
MRI FINDINGS | |||
Anatomical images (n = 15) | |||
Left lateralisation, n (%) | 8 (53%) | ||
Lobar localisation, n (%) | Frontal | 8 (53%) | |
Temporal | 3 (20%) | ||
Posterior | 3 (20%) | ||
Multilobar | 1 (7%) | ||
FCD volume (n = 18) | Lesion volume in mm3, median (IQR) | 11,191 (1231–23,078) | |
Perfusion images (n = 18) | |||
Perfusion pattern (n = 18) | |||
Isoperfused, n (%) | 2 (11%) | ||
Hypoperfused, n (%) | 10 (56%) | ||
Hyperperfused, n (%) | 6 (33%) | ||
Perfusion extent (n = 16) | |||
Larger, n (%) | 9 (56%) | ||
Equal, n (%) | 7 (44%) | ||
HISTOPATHOLOGY (n = 7) | |||
FCD I | 3 (43%) | ||
FCD IIa | 1 (14%) | ||
FCD IIb | 2 (29%) | ||
FCD III$ | 1 (14%) | ||
