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

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 DSC-PI findings in the studied groups

	Group 1 Low grade (n = 14)	Group 2 High grade (n = 21)	Test of sig.	p
DSC-CBF (lesion)
Mean ± SD.	11.9 ± 9.1	69.5± 82.6	U = 42.0^*	< 0.001^*
Median (min.–max.)	8.5 (4.5–33.5)	36 (1.3–310)	U = 42.0^*	< 0.001^*
DSC relative CBF (WM)
Mean ± SD.	0.63± 0.16	4.3 ± 2.8	U = 0.0^*	< 0.001^*
Median (min.–max.)	0.58 (0.40–0.90)	3 (2.1–12.1)	U = 0.0^*	< 0.001^*
DSC-CBV (lesion)
Mean ± SD.	1.5± 0.67	6.7 ± 3.7	U = 31.0	< 0.001^*
Median (min.–max.)	1.3 (0.8–3.1)	6.2 (0.35–13.3)	U = 31.0	< 0.001^*
DSC relative CBV (WM)
Mean ± SD.	0.73± 0.15	3.3± 1.2	U = 0.0^*	< 0.001^*
Median (min.–max.)	0.65 (0.60–1.1)	3.1 (1.4–5.7)	U = 0.0^*	< 0.001^*

U Mann-Whitney test, p p value for comparing between the studied groups, *statistically significant at p ≤ 0.05