Table 4.
Mean volume, intra- and inter-observer conformation number, stratified by anatomic site (95% CI in parentheses)
| GTV ROI volume (cm3, mouse–keyboard) | GTV ROI volume (cm3, pen–tablet) | GTV ROI intra-observer CN | GTV ROI inter-observer CN (mouse–keyboard) | GTV ROI inter-observer CN (pen–tablet) | |
|---|---|---|---|---|---|
| All | – | – | 0.77 (0.75–0.80) | 0.69 (0.65–0.71) | 0.69 (0.64–0.71) |
| Brain | 210.8 (191–228) | 205.7 (191–220) | 0.85 (0.83–0.97) | 0.79 (0.77–0.82) | 0.80 (0.78–0.82) |
| Prostate | 43.4 (39–48) | 43.0 (37–49) | 0.76 (0.72–0.81) | 0.68 (0.66–0.70) | 0.67 (0.64–0.70) |
| Lung | 377.8 (345–409) | 408.3 (373–442) | 0.79 (0.77–0.81) | 0.67 (0.66–69) | 0.66 (0.64–0.68) |
| Head and neck | 20.2 (15–25) | 18.9 (14–24) | 0.61 (0.56–0.66) | 0.47 (0.42–0.52) | 0.47 (0.40–0.54) |
CN = 1 indicates 100% volume overlap, CN = 0 denotes complete disagreement