Table 4 Comparison between nodules type and size as described by final CAD system and the reference radiologist (N = 79)
From: Assessment of artificial intelligence-aided computed tomography in lung cancer screening
Variables | Final CAD system | Reference radiologist | p value |
|---|---|---|---|
No. of total nodules | |||
Median (range) | 1 (0–100) | 1 (0–15) | 0.852a |
Total nodules | |||
Absent | 22 (27.8%) | 22 (27.8%) | 1.00b |
Present | 57 (72.2%) | 57 (72.2%) | |
Size of total nodules | |||
≤ 6 mm | 30 (37.9%) | 29 (36.7%) | |
> 6 mm | 28 (35.5%) | 28 (35.5%) | 0.954b |
No. of solid nodules | |||
Median (range) | 1 (0–91) | 1 (0–13) | 0.773a |
Solid nodules | |||
Absent | 32 (40.5%) | 42 (53.1%) | 0.782b |
Present | 47 (59.5%) | 37 (46.9%) | |
Size of solid nodules | |||
≤ 6 mm | 23 (30.4%) | 19 (24.1%) | 0.817a |
> 6 mm | 24 (29.1%) | 18 (22.8%) | |
No. of subsolid nodules | |||
Median (range) | 0 (0–9) | 1 (0–2) | 0.978a |
Subsolid nodules (n, %) | |||
Absent | 54 (68.4%) | 54 (68.4%) | 1.00b |
Present | 25 (31.6%) | 25 (31.6%) | |
Size of subsolid nodules | |||
≤ 6 mm | 14 (17.7%) | 14 (17.7%) | 1.00b |
> 6 mm | 11 (13.9%) | 11 (13.9%) | |
No. of calcified nodules | |||
Median (range) | 0 (0–1) | 1 (0–1) | 0.993a |
Calcified nodules (n, %) | |||
Absent | 78 (98.7%) | 78 (98.7%) | 1.00c |
Present | 1 (1.3%) | 1 (1.3%) | |
Size of calcified nodules | |||
≤ 6 mm | 1 (1.3%) | 1 (1.3%) | 1.00c |
> 6 mm | 0 (0%) | 0 (0%) |