Table 7 Comparison of the features of active PTB and inactive PTB on LDCT images

Tree-in-bud^a

7

0

Cavity^a

2

0

Patchy opacity

10

34

Calcification^a

1

33

Nodules

13

75

Ground glass opacity

4

1

Lymph node enlargement

1

1

Fibrous shadow^a

8

85

Total

19

109