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Table 2 EEG, PET, and surgical findings

From: 18F-FDG PET-guided diffusion tractography reveals white matter abnormalities around the epileptic focus in medically refractory epilepsy: implications for epilepsy surgical evaluation

Pt.

Clinical hypothesis

Scalp EEG

PET R1

PET R2

PET R3

AI mapping

PET/DTI

SEEG

Surgery

Engel Class

Histopathology

1

L temp/L front

L temp/L front

Bitemporal (L > R)

L temp

L temp

L temp

L temp

None

None

None

None

2

L front

Bifrontal

L temp/L front/L par

L temp/L front/L par

L front/L par

L front

L front

None

None

None

None

3

R front

Bifrontal

Unremarkable

Unremarkable

Unremarkable

L front

R front

R front

R front lobectomy

IA

GGM WHO I

4

L temp/L front

L temp

Unremarkable

L temp

Bitemporal

L temp

L temp

None

None

None

None

5

R temp

Bitemporal

R temp

R temp

Bitemporal

R temp

R temp

R temp

R temp lobectomy

IIIA

Gliosis

6

L temp/L front

L temp/L front

Bitemporal

L temp/R front

L temp

L front

Unremarkable

L temp

L temp lobectomy

IA

Gliosis

7

L temp

L temp/L front

Bitemporal

Bitemporal

L temp

L front

Unremarkable

None

None

None

None

8

R front

Bitemporal + extratemporal

R temp

R temp/L front

Bitemporal/Bifrontal

L front

Unremarkable

Bifrontal

R front lobectomy

IIIA

FCD Ib

9

L temp

L temp

Bitemporal

Bitemporal

Bitemporal

L temp

L temp

None

L temp lobectomy

IA

HS

10

R temp

R temp

R temp

R temp

R temp

L front

Unremarkable

None

R temp lobectomy

IV

Gliosis

11

R temp/R front

R temp

R temp

R temp/R par/L front

R temp

R temp

R temp

R temp

R temp lobectomy

IA

Gliosis

12

L temp

Bitemporal

L temp

L temp

L temp

L temp

L temp

None

None

None

None

13

R temp

Bitemporal + extratemporal

Bitemporal

Unremarkable

R temp

L temp/L front

R temp

None

None

None

None

14

R temp

Bitemporal

Unremarkable

R temp

R temp

L temp

R temp

None

R temp lobectomy

IA

Unremarkablea

  1. FDG-PET hypometabolism reports from three clinical readers are summarized under the headings PET R1, PET R2, and PET R3
  2. Abbreviations: FCD focal cortical dysplasia; front frontal lobe; GGM ganglioglioma; L left; par parietal lobe; Pt patient; R right; temp temporal lobe; WHO World Health Organization grade
  3. aNo specific structural changes that could explain the etiopathogenesis of patient’s epilepsy