Table 2 Comparison of ¹⁸F-FAPI and ¹⁸F-FDG PET/CT in the evaluation of all the mediastinal and hilar lymph nodes

True positive (No. of lymph nodes)

38

32

/

False positive (No. of lymph nodes)

7

30

/

False negative (No. of lymph nodes)

7

13

/

True negative (No. of lymph nodes)

85

62

/

Sensitivity (%)

84 [71, 93]

71 [57, 82]

0.031*

Specificity (%)

92 [85, 97]

67 [57, 76]

 <0 .001*

Accuracy (%)

90 [83, 94]

69 [60, 76]

 <0 .001*

PPV (%)

84 [71, 93]

52 [39, 64]

/

NPV (%)

92 [85, 97]

83 [72, 90]

/