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Table 5 Correlation of measurements of MR perfusion with final histopathological diagnosis

From: MR diffusion versus MR perfusion in patients with ovarian tumors; how far could we get?

  Pathological diagnosis P value
Benign (I) Borderline (II) Malignant (III)
N = 18 N = 4 N = 25
MRE 0.577
Range (50–190.8) (45–200.5) (39.7–141)
Mean ± SD 118.8 ± 49.8 118.2 ± 80.6 110.5 ± 31.3 I vs II I vs III II vs III
Median 139 113.6 118.5
0.966 0.284 0.752
SI max <0.001*
Range (66–1674.6) (1620.5–2630.5) (1299.6–3729)
Mean ± SD 560.8 ± 492.7 1949.8 ± 461.2 1973.1 ± 572.6
I vs II I vs III II vs III
Median 513.4 1774.1 1900.2
0.003* <0.001* 0.950
WIR     <0.001*
Range (1.7–76.2) (11.6–113.2) (14–33.5)
Mean ± SD 15.3 ± 15.7 41.6 ± 48 23.2 ± 5.4 I vs II I vs III II vs III
Median 13 20.9 22
0.125 <0.001* 0.704
WOR     
Range (0.6–6) (1–7.5) (6.5–17.2) <0.001*
Mean ± SD 3.7 ± 1.9 3.1 ± 3 10.7 ± 3.1  
Median 4.3 1.9 9.8 I vs II I vs III II vs III
0.670 <0.001* 0.003*
  1. Kruska-Wallis test for nonparametric quantitative data between the three groups followed by Mann-Whitney test between each two groups. Fisher exact test for qualitative data between the groups
  2. *Significant level at P value <0.05