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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)