Joint | Exercise 1, n = 300 Images | Exercise 2, n = 28 images | |||
---|---|---|---|---|---|
ICC (95% CI)a | |||||
B Mode | PD Mode | B Mode | PD Mode | ||
Elbow | Anterior humeroradial and humeroulnar joint recesses in longitudinal view | 0.97 (0.96-0.98) | 0.89 (0.84-0.92) | N/A | N/A |
Posterior humeroulnar joint recess in longitudinal view | 0.96 (0.94-0.97) | 0.90 (0.86-0.92) | N/A | N/A | |
Wrist | Distal radioulnar joint recess in transverse view | 0.94 (0.92-0.96) | 0.96 (0.94-0.97) | N/A | N/A |
Dorsal radiocarpal joint recess in midline longitudinal view | 0.93 (0.91-0.94) | 0.97 (0.96-0.98) | N/A | N/A | |
Dorsal radiocarpal joint recess in ulnar longitudinal view | 0.87 (0.81-0.93) | 0.83 (0.61-0.91) | N/A | 0.96 (0.94-0.97) | |
Extensor tendons in transverse viewb | 0.67 (0.53-0.81) | 0.51 (0.37-0.65) | N/A | 0.72 (0.61-0.83) | |
Finger | MCP dorsal joint recess in longitudinal view | 0.93 (0.91-0.97) | 0.97 (0.96-0.98) | N/A | N/A |
MCP volar joint recess in longitudinal view | 0.93 (0.91-0.94) | 0.87 (0.84-0.90) | N/A | N/A | |
PIP volar long joint recess in longitudinal view | 0.96 (0.95-0.97) | 0.89 (0.86-0.91) | N/A | N/A | |
PIP dorsal long joint recess in longitudinal view | 0.96 (0.94-0.97) | 0.95 (0.93-0.97) | N/A | N/A |
↵a Intraclass correlation coefficient (ICC) was based on a 2-way random effects model for a single measure. ICC was defined as excellent 0.75-1.00, good 0.60-0.74, fair 0.40-0.59, and poor < 0.40.18
↵b values of 0.0-0.2 indicate slight agreement, 0.21-0.40 fair agreement, 0.41-0.60 moderate agreement, 0.61-0.80 substantial agreement, and 0.81-1.0 almost perfect or perfect agreement.17 ICC: intraclass correlation coefficient; MCP: metacarpophalangeal joint; N/A: not applicable; PD: power Doppler; PIP: proximal interphalangeal joint.