Inter- and intraobserver agreement for a WBCE-3D TSE T1WI and OCE-2D coronal T1WI when detecting optic nerve or optic chiasm enhancement
| Interobserver | Intraobserver | |||
|---|---|---|---|---|
| OCE-2D T1WI κ (95% CI) | WBCE-3D T1WI κ (95% CI) | OCE-2D T1WI κ (95% CI) | WBCE-3D T1WI κ (95% CI) | |
| Optic nerve enhancement | 0.80 (0.75–0.85) | 0.65 (0.60–0.71) | 0.75 (0.70–0.80) | 1 (1–1) |
| Localization of the enhancement | ||||
| Bilateral | 0.90 (0.78–1) | 0.53 (0.34–0.71) | 0.75 (0.58–0.92) | 1 (1–1) |
| Intraorbital segment | 0.76 (0.70–0.82) | 0.63 (0.57–0.70) | 0.81 (0.76–0.87) | 0.81 (0.76–0.87) |
| Canalicular segment | 0.64 (0.56–0.73) | 0.72 (0.65–0.79) | 0.71 (0.64–0.79) | 0.68 (0.58–0.75) |
| Cisternal segment | 0.58 (0.45–0.72) | 0.54 (0.37–0.72) | 0.49 (0.34–0.65) | 0.81 (0.76–0.87) |
| Optic chiasm | 0.44 (0.15–0.73) | 0.73 (0.51–0.96) | 0.33 (0.04–0.61) | 1 (1–1) |