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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]
  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.
  1. NA: Not enough examples to compute kappa score