Table 3 Reproducibility of Semantics features and PIRADS scored between two radiologists on randomly selected prostate patients with 40 targeted biopsies (32 unique patients). A) Actual scores b) sorted scores
From: Radiological semantics discriminate clinically significant grade prostate cancer
Semantic Features | |||
# | Features | Kappa (CI) | |
1 | F1:shape | 0.56 [0.33, 0.80] | |
2 | F2:border | 0.74 [0.55, 0.93] | |
3 | F3:T2-intensity | 0.58 [0.33, 0.84] | |
4 | F4:ADC-intensity | 0.6 [0.369, 0.83] | |
5 | F5:homogeneity | 0.55 [0.30, 0.81] | |
6 | F6:enhacement-degree | 0.67 [0.48, 0.86] | |
7 | F7:early-enhancement | 0.86 [0.66, 1.05] | |
8 | F8:enhanced-homogenicity | 0.70 [0.47, 0.92] | |
9 | F9:capsule | 0.54 [0.04, 1.04] | |
10 | F10:cyst | 1 [1,1] | |
11 | F11:extraprostatic-extension | 0.69 [0.49, 0.9] | |
12 | F12:seminal-vesicles | NA | |
13 | F13:distal-sphincter | NA | |
14 | F14:bladder-neck | NA | |
15 | F15:lymph-adenopathy | NA | |
16 | F16:BPH | 0.72 [0.49, 0.95] | |
PIRADS | 0.69 [0.47, 0.90] | ||
| Â | Kappa range | # Features | Details |
1 | ≥0.7 | 4 | F10:Cyst, F7:Early-enhancement, F2:Border,F16:BPH |
2 | ≥0.6, < 0.7 | 4 | F8:Enhanced-homogenic, F11:extraprostatic-extension, F6:enhacement-degree, F4:ADC-intensity |
3 | ≥0.5, < 0.6 | 4 | F3:T2-intensity, F1:Shape,F5:homogeneity, F9:capsule |
4 | NA (can’t evaluate) | 4 | F12:seminal-vesicles, F13:distal-sphincter;F14:bladder-neck, F15:lymph-adenopathy. |