Table 6 Comparison between the diagnostic accuracy of CESM, DW MRI and ADC value

True positive

28

70%

30

75%

True negative

3

7.5%

6

15%

False positive

6

15%

3

7.5%

False negative

3

7.5%

1

2.5%

Sensitivity

90.32%

96.77%

96.77%

Specificity

33.33%

66.67%

77.78%

Total accuracy

77.50%

90.00%

92.50%

Disease prevalence

77.50%

77.50%

77.50%

Positive predictive value (PPV)

82.35%

90.91%

93.75%

Negative predictive value (NPV)

50.00%

85.71%

87.50%

Positive likelihood ratio (LR+)

1.35

2.90

4.35

Negative likelihood ratio (LR-)

0.29

0.05

0.04