MRI parameters | Meningioma Operative vascularity | p | |||||
---|---|---|---|---|---|---|---|
Highly vascular (n = 27) | Intermediate vascularity (n = 6) | Hypo vascular (n = 7) | |||||
No | % | No | % | No | % | ||
T2 signal | Â | Â | Â | Â | Â | Â | Â |
 Hyperintense | 18 | 66.7 | 1 | 16.7 | 2 | 28.6 | p = 0.003* |
 Isointense | 9 | 33.3 | 4 | 66.7 | 2 | 28.6 | |
 Hypointense | 0 | 0.0 | 1 | 16.7 | 3 | 42.9 | |
Significance between groups | p1 = 0.027*, p2 = 0.006*, p3 = 0.479 |  | |||||
Diffusion | Â | Â | Â | Â | Â | Â | Â |
 Free diffusion | 2 | 7.4 | 0 | 0.0 | 0 | 0.0 | p = 0.174 |
 Iso diffusion | 5 | 18.5 | 4 | 66.7 | 2 | 28.6 | |
 Restricted | 20 | 74.1 | 2 | 33.3 | 5 | 71.4 | |
ADC (× 10−5cm2/s) |  |  |  |  | |||
 Min.–Max | 0.60–1.30 | 0.70–1.20 | 0.70–1.20 | p = 0.244 | |||
 Mean ± SD | 0.89 ± 0.21 | 1.03 ± 0.23 | 0.85 ± 0.18 | ||||
 Median | 0.85 | 1.15 | 0.80 | ||||
ASL | Â | Â | Â | Â | Â | Â | Â |
 Hyper perfusion | 27 | 100.0 | 0 | 0.0 | 0 | 0.0 | p < 0.001* |
 Iso perfusion | 0 | 0.0 | 6 | 100.0 | 0 | 0.0 | |
 Hypo perfusion | 0 | 0.0 | 0 | 0.0 | 7 | 100.0 | |
Significance between groups | p1 < 0.001*, p2 < 0.001*, p3 = 0.001* |  | |||||
nCBF | Â | Â | Â | Â | |||
 Min.–Max | 2.10–14.20 | 1.50–1.60 | 0.70–0.90 | p < 0.001* | |||
 Mean ± SD | 3.93 ± 2.73 | 1.55 ± 0.04 | 0.82 ± 0.09 | ||||
 Median | 2.50 | 1.55 | 0.87 | ||||
Significance between groups | p1 = 0.002*, p2 < 0.001*, p3 = 0.313 |  |