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Table 4 Comparison between the two studied groups according to different MRI perfusion parameters

From: Arterial spin labeling in the grading of brain gliomas: could it help?

MR perfusion Low grade (n = 14) High grade (n = 21) χ2 MCp
ASL-CBF
 Hypo 9 (64.3%) 0 (0%) 19.057 < 0.001*
 ISO 1 (7.1%) 2 (9.5%)
 Hyper 4 (28.6%) 19 (90.5%)
DSC-CBF
 Hypo 12 (85.7%) 0 (0%) 39.641* < 0.001*
 ISO 2 (14.3%) 0 (0%)
 Hyper 0 (0%) 21 (100%)
DSC-CBV
 Hypo 12 (85.7%) 0 (0%) 37.087 < 0.001*
 ISO 2 (14.3%) 1 (4.8%)
 Hyper 0 (0%) 20 (95.2%)
  1. χ2 chi-square test, MC Monte Carlo, U Mann-Whitney test, p p value for comparing between the studied groups, *statistically significant at p ≤ 0.05