Table 2 The Reliability of Dural Cross Sectional Area, Morphological Grade and Nerve Root Sedimentation Sign for lumbar spinal stenosis
Observer | Intra-reliability(ICC) | 95% CI | P | Inter-reliability(ICC) | 95% CI | P | |
|---|---|---|---|---|---|---|---|
Morphological Grade | 1 | 0.72 | 0.66–0.77 | < 0.01 | 0.61 | 0.55–0.66 | < 0.01 |
2 | 0.78 | 0.73–0.82 | < 0.01 | ||||
Nerve Root Sedimentation | 1 | 0.85 | 0.81–0.88 | < 0.01 | 0.75 | 0.72–0.79 | < 0.01 |
2 | 0.83 | 0.79–0.86 | < 0.01 | ||||
Dural Sac Cross- Sectional Area | 1 | 0.93 | 0.92–0.95 | < 0.01 | 0.90 | 0.89–0.92 | < 0.01 |
2 | 0.91 | 0.89–0.93 | < 0.01 |