Table 4 MRI-based characteristics of study patients

ADC value, (× 10⁻³ mm²/s) mean ± SD

1.16 ± 0.36

0.77 ± 0.28

 < 0.001 ^a

-0.107

0.842 ^b

T1WI

0.059 ^a

0.016

0.785

 Hypointensity

5 (15.6%)

3 (14.3%)

 Isointensity

26 (81.3%)

12 (57.1%)

 Hyperintensity

0 (0.0%)

3 (14.3%)

 Mixed

1 (3.1%)

3 (14.3%)

T2WI

0.205 ^a

0.000

0.877

 Hypointensity

10 (31.3%)

1 (4.8%)

 Isointensity

3 (9.4%)

1 (4.8%)

 Hyperintensity

7 (21.9%)

15 (71.4%)

 Mixed

12 (37.5%)

4 (19.0%)

DWI

0.277 ^a

0.081

0.814

 Hypointensity

5 (15.6%)

0 (0.0%)

 Isointensity

3 (9.4%)

0 (0.0%)

 Hyperintensity

12 (37.5%)

16 (76.2%)

 Mixed

12 (37.5%)

5 (23.8%)

Contrast enhancement

 Arterial phase

 < 0.001 ^a

0.000

0.911

  Minimal

26 (81.3%)

4 (19.0%)

  Mild

 5 (15.6%)

7 (33.3%)

  Moderate

1 (3.1%)

9 (42.9%)

  Severe

0 (0.0%)

1 (4.8%)

 Venous phase

 < 0.001 ^a

0.267

0.930

  Minimal

19 (59.4%)

0 (0.0%)

  Mild

12 (37.5%)

10 (47.6%)

  Moderate

1 (3.1%)

10 (47.6%)

  Severe

0 (0.0%)

1 (4.8%)

 Delayed phase

 < 0.001 ^a

0.000

0.913

  Minimal

17 (53.1%)

0 (0.0%)

  Mild

14 (43.8%)

10 (47.6%)

  Moderate

1 (3.1%)

10 (47.6%)

  Severe

0 (0.0%)

1 (4.8%)