Table 4.
Inter-reader agreement between the two radiologists
|
Qualitative assessment
|
Imaging
|
κ value (95%CI)
|
P value
|
| Sharpness of pancreas contour | FOCUS-DLR+ | 0.73 (0.52–0.95) | < 0.0011 |
| FOCUS-DLR- | 0.69 (0.45–0.93) | < 0.0011 | |
| FOCUS-conv | 0.66 (0.43–0.89) | < 0.0011 | |
| Image noise | FOCUS-DLR+ | 0.69 (0.46–0.92) | < 0.0011 |
| FOCUS-DLR- | 0.70 (0.50–0.90) | < 0.0011 | |
| FOCUS-conv | 0.64 (0.42–0.87) | < 0.0011 | |
| Distortion of pancreas | FOCUS-DLR+ | 0.61 (0.40–0.82) | < 0.0011 |
| FOCUS-DLR- | 0.71 (0.53–0.89) | < 0.0011 | |
| FOCUS-conv | 0.61 (0.41–0.82) | < 0.0011 | |
| Visualization of pancreas cystic lesion | FOCUS-DLR+ | 0.80 (0.56–1.03) | < 0.0011 |
| FOCUS-DLR- | 0.76 (0.60–0.93) | < 0.0011 | |
| FOCUS-conv | 0.71 (0.51–0.91) | < 0.0011 | |
| Visualization of MPD on ADC map | FOCUS-DLR+ | 0.67 (0.51–0.83) | < 0.0011 |
| FOCUS-DLR- | 0.75 (0.60–0.90) | < 0.0011 | |
| FOCUS-conv | 0.74 (0.54–0.94) | < 0.0011 |
1
A significant difference. P values were obtained by the weighted κ statistic.
κ values: < 0, no agreement; 0–0.20, slight agreement; 0.21–0.40, fair agreement; 0.41–0.60, moderate agreement; 0.61–0.80, substantial agreement; and 0.81–1.00, almost perfect agreement. 95%CI: 95% confidence intervals; DLR: Deep learning-based reconstruction; FOCUS: Field-of-view optimized and constrained undistorted single-shot; FOCUS-conv: Conventional field-of-view optimized and constrained undistorted single-shot; ADC: Apparent diffusion coefficient; MPD: Main pancreatic duct.