Characteristics | Training dataset (N = 130) | Test dataset (N = 58) | ||||
---|---|---|---|---|---|---|
AMC (N = 74) | Thymoma (N = 56) | P | AMC (N = 32) | Thymoma (N = 26) | P | |
Age (years) | 54.19 ± 8.05 | 50.71 ± 9.17 | 0.110 | 55.81 ± 9.52 | 44.62 ± 13.04 | 0.013 |
Gender | Â | Â | 0.213 | Â | Â | 0.577 |
 Male | 34(45.9%) | 18(32.1%) |  | 20 (62.5%) | 12 (46.2%) |  |
 Female | 40 (54.1%) | 38 (67.9%) |  | 12(37.5%) | 14 (53.8%) |  |
Primary site | Â | Â | 0.301 | Â | Â | 0.041 |
 Left | 44 (59.5%) | 30 (53.6%) |  | 22 (68.7%) | 18 (69.2%) |  |
 Right | 30 (40.5%) | 26 (46.4%) |  | 10 (31.3%) | 8 (30.8%) |  |
Lesion size (cm) | 2.72 ± 1.40 | 3.41 ± 1.26 | 0.043 | 2.60 ± 1.34 | 3.52 ± 1.24 | 0.069 |
Unenhanced CT value | 33.14 ± 17.59 | 43.34 ± 9.76 | 0.004 | 27.90 ± 17.14 | 38.06 ± 9.21 | 0.053 |
Enhanced CT value | 35.26 ± 18.19 | 67.74 ± 16.34 | 0.000 | 34.40 ± 20.04 | 57.07 ± 16.61 | 0.003 |
Change of CT value | 2.13 ± 12.45 | 24.40 ± 12.67 | 0.000 | 6.50 ± 14.68 | 19.01 ± 13.25 | 0.025 |
Radscore | − 2.52 ± 2.22 | 2.30 ± 2.72 | 0.000 | − 2.41 ± 1.77 | 1.96 ± 2.66 | 0.000 |