Table 4.
CTVA inter-observer surface distance, expressed as the 95% confidence interval of the group standard deviation from the median group isosurface, by regional subdivision, before and after atlas exposure.
| Anterior | Posterior | Lateral | ||
|---|---|---|---|---|
|
All observers Scan 1 (e.g. initial total inter-observer variation) |
Upper Lower |
0.6–1.4 cm 0.6–1.2 cm |
0.2–0.7 cm 0.3–1.2 cm |
0.3–1.1 cm 0.4–1.1 cm |
|
Group_A Scan 1 (e.g. initial inter-observer variation) |
Upper Lower |
0.5–1.4 cm 0.7–1.3 cm |
0.2–0.7 cm 0.4–1.4 cm |
0.2–1.0 cm 0.5–1.4 cm |
|
Group_A Scan 2 (e.g. post-atlas inter-observer variation) |
Upper Lower |
0.5–1.1 cm 0.6–1.1 cm |
0.1–0.7 cm 0.2–0.6 cm |
0.2–0.9 cm 0.3–0.8 cm |