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Table 2 Relation between meningioma operative vascularity and different MRI parameters

From: Can magnetic resonance imaging predict preoperative consistency and vascularity of intracranial meningioma?

MRI parameters

Meningioma Operative vascularity

p

Highly vascular

(n = 27)

Intermediate vascularity

(n = 6)

Hypo vascular

(n = 7)

No

%

No

%

No

%

T2 signal

       

 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

       

 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

       

 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

    

 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

 
  1. ADC, apparent diffusion coefficient; ASL, arterial spin labeling; n, number of patients; nCBF, normalized cerebral blood flow; p, p value for association between different categories; p1, p value for association between hyper vascular and intermediately vascular; p2, p value for association between hyper vascular and hypo vascular; p3, p value for association between Intermediately vascular and hypo vascular meningioma; SD, standard deviation
  2. *Statistically significant at p ≤ 0. 05