Table 5.
IOA (Cohens’ k coefficient) among the three radiologists in the evaluation of single imaging parameters. IOA = Interobserver Agreement. PER = Pancreatic Expert Radiologist. GR = Middle-expert General Radiologist. YR = Young Radiologist.
| Parameters | PER vs. GR (k) | PER vs. YR (k) | GR vs. YR (k) | |
|---|---|---|---|---|
| Major Axis | >15 mm | −0.03 | 0.31 | −0.07 |
| >20 mm | 0.18 | 0.39 | 0.32 | |
| >25 mm | 0.33 | 0.55 | 0.46 | |
| >30 mm | 0.48 | 0.53 | 0.54 | |
| Homogeneous pattern | Arterial | −0.03 | 0.17 | 0.24 |
| Venous | 0.08 | 0.08 | 0.02 | |
| Equilibrium | 0.09 | 0.24 | 0.18 | |
| Enhancement | Venous | −0.03 | −0.04 | −0.04 |
| Equilibrium | −0.09 | −0.29 | 0.21 | |
| Retroperitoneal infiltration | −0.03 | 0.28 | 0.39 | |
| Fibrosis | 0.28 | −0.11 | 0.27 | |
| Perivascular Cuff | 0.29 | 0.59 | 0.46 | |
| Tumor Persistence | 0.28 | 0.48 | 0.38 | |