Table 2.
Continuous scale | Mean (SD) | Mean (SD) | Mean Difference (SD) |
P | LOA | SEM | MDC (%) | ICC (95% CI) |
Mean across tendon | ||||||||
Intra-rater | Rater 1 | Rater 1 | ||||||
RAW | 4.40 (0.55) | 4.36 (0.55) | 0.04 (0.14) | 0.09 | −0.24; 0.33 | 0.10 | 0.28 (6.36) | 0.97 (0.93 to 0.98) |
DELT (ratio) | 14.33 (3.07) | 14.23 (3.16) | 0.10 (1.48) | 0.66 | −2.81; 3.01 | 1.05 | 2.91 (20.37) | 0.89 (0.80 to 0.94) |
GEL (ratio) | 2.87 (1.28) | 2.59 (1.01) | 0.28 (0.82) | 0.04* | −1.33; 1.89 | 0.58 | 1.61 (58.82) | 0.73 (0.54 to 0.85) |
Inter-rater | Rater 1 | Rater 2 | ||||||
RAW | 4.40 (0.55) | 4.53 (0.61) | −0.13 (0.24) | 0.00* | −0.60; 0.34 | 0.17 | 0.47 (10.53) | 0.89 (0.75 to 0.95) |
DELT (ratio) | 14.33 (3.07) | 14.56 (2.60) | −0.22 (1.88) | 0.46 | −3.91; 3.46 | 1.33 | 3.69 (25.51) | 0.78 (0.63 to 0.88) |
GEL (ratio) | 2.87 (1.28) | 2.73 (1.00) | 0.14 (0.89) | 0.32 | −1.61; 1.90 | 0.63 | 1.75 (62.63) | 0.70 (0.50 to 0.83) |
*significant difference (p≤0.05) between measurements; DELT, reference area in the deltoid muscle; GEL, reference area in the gel pad; ICC (95% CI), intraclass correlation coefficient with 95% CI; LOA, limits of agreement; MDC, minimal detectable change; RAW, raw elastography data.