Table 3.

Relationship of SPA occurrence and aetiology

Patients	Aetiology	Number of patients	Ratio of slices generating SPA (%, sum of slices with SPA/sum of all slices)	Ratio of slices generating SPA (% by patient, mean ± SD)
Epileptic	Dysgenesis	13	54.9	58.3 ± 28.6
	Hippocampal sclerosis	8	57.1	56.1 ± 17.5
	Other	5	52.0	50.3 ± 34.0
	Tumour	23	37.1	36.4 ± 29.0
	Total	49	46.6	46.8 ± 28.9
Tumour	Glial tumour	31	38.1	38.7 ± 28.6
	Carcinoma metastasis	18	23.7	20.6 ± 21.3
	Other tumour	7	35.9	35.0 ± 29.0
	Total	56	33.5	32.4 ± 27.4