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Table 1 Relation between meningioma operative consistency and different MRI parameters

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

MRI parameters Meningioma operative consistency p
Soft
(n = 19)
Intermediate
(n = 14)
Firm
(n = 7)
No % No % No %
T2 signal        
 Hyperintense 14 73.7 5 35.7 0 0.0 p = 0.001*
 Isointense 5 26.3 8 57.1 5 71.4
 Hypointense 0 0.0 1 7.1 2 28.6
Significance between groups p1 = 0.047*, p2 = 0.001*, p3 = 0.117  
Diffusion        
 Free diffusion 2 10.5 0 0.0 3 42.9 p < 0.001*
 Iso diffusion 2 10.5 4 28.6 4 57.1
 Restricted 15 78.9 10 71.4 0 0.0
Significance between groups p1 = 0.322, p2 = 0.001*, p3 = 0.001*  
ADC × 10−5 cm2/s × 10−5 cm2/s × 10−5 cm2/s  
 Min.–Max 0.60–1.30 0.70–1.20 0.90–1.40 p = 0.024*
 Mean ± SD 0.89 ± 0.19 0.88 ± 0.22 1.13 ± 0.21
 Median 0.85 0.80 1.10
Significance between groups p1 = 0.987, p2 = 0.031*, p3 = 0.031*  
TCTI ratio     
 Min.–Max 1.75–2.87 1.31–1.60 0.90–1.20 p < 0.001*
 Mean ± SD 1.99 ± 0.29 1.50 ± 0.10 1.09 ± 0.11
 Median 1.90 1.53 1.10
Significance between groups p1 < 0.001*, p2 < 0.001*, p3 = 0.001*  
  1. ADC, apparent diffusion coefficient; p, p value for association between different categories; n, number of patients; p1, p value for association between soft and intermediate; p2, p value for association between soft and firm; p3, p value for association between intermediate and firm; SD, standard deviation; TCTI, Tumor/cerebellar peduncle T2-weighted imaging intensity
  2. *Statistically significant at p ≤ 0.05