Prevalence, agreement, and intraobserver reliability results of elementary lesions of subtalar synovitis.
| US Abnormality | Prevalence, %, Range | Weighted κ (95% CI), Range | κ Max, Range | Agreement, Range |
|---|---|---|---|---|
| SH (0–3) | 0.62 (0.34–0.77)–0.98 (0.87–1) | 0.76–0.98 | 0.65 (0.51–0.76)–0.98 (0.9–1) | |
| Score 0 | 53 (41–71) | |||
| Score 1 | 23 (11–33) | |||
| Score 2 | 10 (5–15) | |||
| Score 3 | 14 (10–17) | |||
| PD (0–3) | 0.48 (0.26–0.67)–0.73 (0.3–0.95) | 0.86–1.0 | 0.8 (0.67–0.88)–0.96 (0.86–1) | |
| Score 0 | 81–93 | |||
| Score 1 | 2–15 | |||
| Score 2 | 0–8 | |||
| Score 3 | 0 | |||
| JE (0–1) | 0.36 (0.08–0.59)–0.67 (0.38–0.85) | 0.67–0.96 | 0.72 (0.58–0.8)–0.88 (0.75–0.93) | |
| Score 0 | 65 (46–80) | |||
| Score 1 | 35 (20–54) |
US: ultrasound; SH: synovial hypertrophy; PD: power Doppler; JE: joint effusion.