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Table 4 Quantitative analysis of the PASL-MRI results of both cerebral hemispheres of the studied patients (n = 26)

From: Arterial spin-labelling and magnetic resonance spectroscopy as imaging biomarkers for detection of epileptogenic zone in non-lesional focal impaired awareness epilepsy

Selected ROIs

rCBF (ml/100 g/min.)

ANOVA

ASLAI%

Ipsilateral hemisphere

Contralateral hemisphere

F

P value

Epileptogenic zone and its mirrored non-epileptic contralateral regions

66.22–76.45 (73.67 ± 4.55)

78.68–88.50 (82.62 ± 5.54)

135.402

< 0.001*

14.34–29.76 (18.65 ± 10.12)

The thalamus

68.15–77.08 (72.62 ± 4.46)

71.15–80.09 (76.62 ± 5.47)

1.462

0.023*

7.71–10.64 (9.23 ± 1.17)

The basal ganglia

72.01–79.09 (75.05 ± 3.04)

73.01–79.10 (76.05 ± 3.05)

1.104

0.279

3.82–8.21 (5.98 ± 1.22)

The cerebellum

72.05–78.27 (74.16 ± 3.11)

72.39–78.63 (74.50 ± 3.11)

0.572

0.456

0.51–4.05 (2.2 ± 1.4)

Apparently normal brain tissue

70.21–79.33 (75.21 ± 4.01)

71.22–79.34 (75.22 ± 4.01)

0.650

0.568

0.01–1.195 (1.1 ± 0.09)

  1. ROIs regions of interest, rCBF regional cerebral blood flow, ml milliliter, g grams, min minute, ASLAI% arterial spin labelled asymmetry index (percent), F Fischer’s exact test value, * significant (P < 0.05). Data are expressed in range (mean ± standard deviation)