Interobserver agreement and differences of delineation using EPI- and HASTE-DWI determined pretreatmenta
| Agreement in % | Weighted κ (95% CI) | Differences of Means | Wilcoxon Signed Rank (P Value) | |
|---|---|---|---|---|
| EPI-DWI observer 1 versus EPI-DWI observer 2 | 98% | 0.52 (0.16–0.76) | 0.09 | .07 |
| HASTE-DWI observer 1 versus HASTE-DWI observer 2 | 90% | 0.54 (0.34–0.73) | 0.17 | .18 |
↵a The delineation of primary tumors and lymph nodes is determined by using a 3-point scale: score 1 = poor delineation, score 2 = moderate delineation, and score 3 = good delineation.