Table 5 Characteristics of the largest nodule as described by final CAD system and reference radiologist (N = 79)
From: Assessment of artificial intelligence-aided computed tomography in lung cancer screening
Variables | Final CAD system | Reference radiologist | p value |
|---|---|---|---|
Size | |||
Mean ± SD | 11.8 ± 16.6 | 15.4 ± 16.8 | 0.018*a |
Median (range) | 7 (1–63) | 8 (1–60) | |
Site | |||
Left side | 16 (20.3%) | 16 (20.3%) | 1.00b |
Upper lobe | 12 (15.2%) | 12 (15.2%) | |
Lower lobe | 4 (5.1%) | 4 (5.1%) | |
Right side | 41 (51.9%) | 41 (51.9%) | |
Upper lobe | 23 (29.1%) | 23 (29.1%) | |
Middle lobe | 3 (3.8%) | 3 (3.8%) | |
Lower lobe | 15 (19%) | 15 (19%) | |
Shape | |||
Irregular | 1 (1.3%) | 1 (1.3%) | |
Oval | 9 (11.4%) | 9 (11.4%) | 0.9842 |
Rounded | 33 (41.8%) | 37 (46.8%) | |
Speculated | 14 (17.7%) | 10 (12.6%) | |
Special feature | |||
Calcium | 1 (1.3%) | 1 (1.3%) | 1.002 |
Fat content | 3 (3.8%) | 3 (3.8%) | |
Lung-RADS | |||
1 | 26 (32.9%) | 35 (44.3%) | 0.5922 |
2 | 22 (27.8%) | 13 (16.5%) | |
3 | 8 (10.1%) | 8 (10.1%) | |
4a | 5 (6.3%) | 5 (6.3%) | |
4b | 14 (17.7%) | 14 (17.7%) | |
4x | 4 (5.1%) | 4 (5.1%) |