Table 3.
Descriptive metrics
| Internal evaluation | No correction | Thickness correction | Both corrections |
|---|---|---|---|
| Full dataset (n = 199) | |||
| R | 0.90 (0.88, 0.93) | 0.96 (0.88, 0.93) | 0.96 (0.95, 0.97) |
| μd | 1.21 (−0.01, 2.43) | 0.43 (−0.38, 1.24) | 0.38 (−0.36, 1.12) |
| σ d | 8.79 (8.00, 9.75) | 5.81 (5.29, 6.45) | 5.32 (4.85, 5.90) |
| μm | 0.92 (−1.77, 3.62) | 13.99 (11.17, 16.80) | 22.83 (20.32, 25.34) |
| σ m | 19.41 (17.68, 21.53) | 20.25 (18.44, 22.46) | 18.08 (16.46, 20.02) |
| Different acquisition technique (n = 111) | |||
| R | 0.87 (0.83, 0.90) | 0.94 (0.92, 0.95) | 0.93 (0.91, 0.95) |
| μd | 1.58 (−0.33, 3.48) | 0.44 (−0.79, 1.66) | 0.35 (−0.78, 1.49) |
| σ d | 10.24 (9.05, 11.80) | 6.58 (5.82, 7.58) | 6.10 (5.39, 7.02) |
| μm | −1.37 (−4.92, 2.19) | 11.41 (8.04, 2.19) | 20.52 (17.52, 23.52) |
| σ m | 19.10 (16.88, 22.01) | 18.14 (16.03, 20.90) | 16.12 (14.24, 18.57) |
| Same acquisition technique (n = 88) | |||
| R | 0.95 (0.93, 0.96) | 0.98 (0.97, 0.98) | 0.98 (0.97, 0.98) |
| μd | 0.74 (−0.62, 2.11) | 0.42 (−0.57, 1.40) | 0.41 (−0.46, 1.28) |
| σ d | 6.54 (5.70, 7.68) | 4.70 (4.09, 5.52) | 4.18 (3.64, 4.91) |
| μm | 3.81 (−0.27, 7.89) | 17.24 (12.57, 21.90) | 25.74 (21.57, 29.92) |
| σ m | 19.53 (17.01, 22.93) | 22.31 (19.43, 26.20) | 19.99 (17.41, 23.47) |
This table gives descriptive metrics for the non‐corrected, thickness corrected, and combined thickness and attenuation anomaly corrected data. These include the right and left breast linear correlation coefficient (R), the right and left breast difference (μd) distribution mean (md) and standard deviation (σ d), right and left breast average distribution mean (ma), and standard deviation (σ a). Each quantity is provided with 95% confidence intervals.