Table 2 Comparison of PWI parameters between medulloblastoma and ependymoma

 Relative enhancement (%)

39.42 (44.79)

15.74 (20.02)

0.019^a

 Maximum enhancement

329.66 (704.32)

66.83 (50.69)

0.006^a

 Maximum relative enhancement (%)

11.13 (57.51)

4.43 (2.23)

0.013^a

 Time to peak (s)

164.87 (32.14)

84.57 (105.26)

0.016^a

 Wash-in rate (s⁻¹)

18.10 (21.00)

19.20 (19.30)

0.776

 Wash-out rate (s⁻¹)

2.74 (6.24)

7.74 (6.95)

0.053

 Area under the curve

10,577.78 (102,680.84)

1,421.12 (3,316.47)

0.023^a

 Relative enhancement ratio

13.62 (16.81)

6.90 (9.03)

0.065

 Maximum enhancement ratio

9.00 (16.79)

1.65 (2.48)

0.016^a

 Maximum relative enhancement ratio

5.95 (20.71)

1.69 (1.77)

0.019^a

 Time to peak ratio

2.65 (2.98)

1.71 (2.08)

0.177

 Wash-in rate ratio

1.71 (4.61)

2.36 (7.85)

0.722

 Wash-out rate ratio

0.57 (1.03)

1.01 (0.96)

0.151

 Area under the curve ratio

39.12 (151.34)

3.68 (19.14)

0.088