Table 2 Comparison between skin ultrasound examination at baseline and at the one-year follow-up
From: High frequency ultrasound of skin involvement in systemic sclerosis – a follow-up study
Measurement | normal valuesa | baseline | follow-up | change | p |
|---|---|---|---|---|---|
(95 % CI) | median (IQR) | median (IQR) | median (IQR) | ||
Skin thickness | (mm) | (mm) | (MM) | ||
Phalanx | (1.15–2.11) | 2.14 (1.92–2.37) | 2.05 (1.88–2.33) | −0.02 (−0.22 – 0.13) | 0.28 |
Hand | (0.98–1.47) | 1.51 (1.39–1.71) | 1.50 (1.34–1.66) | −0.040 (−0.18 – 0.12) | 0.14 |
Forearm | (1.05–1.75) | 1.61 (1.44–1.76) | 1.55 (1.30–1.76) | −0.080 (−0.23 – 0.10) | 0.052 |
Leg | (1.02–1.64) | 1.47 (1.33–1.62) | 1.43 (1.29–1.55) | −0.040 (−0.16 – 0.06) | 0.060 |
Chest | (1.04–1.89) | 1.63 (1.50–1.92) | 1.58 (1.44–1.79) | −0.12 (−0.30 – 0.15) | 0.024 |
TST | (5.62–8.59) | 8.53 (7.94–9.03) | 8.28 (7.47–8.94) | −0.22 (−0.79 – 0.30) | 0.011 |
Skin echogenicity | (pixels) | ||||
Phalanx | (15.0–44.0) | 25.0 (20.0–30.0) | 24.5 (21.0–31.0) | 0.0 (−4.0 – 4.0) | 0.78 |
Hand | (19.0–47.0) | 29.0 (22.5–34.0) | 28.0 (22.0–35.0) | 0.0 (−5.0 – 6.0) | 0.59 |
Forearm | (22.0–51.0) | 38.0 (33.0–45.5) | 37.5 (31.5–46.0) | 1.0 (−7.0 – 7.0) | 0.49 |
Leg | (31.0–55.0) | 47.0 (42.4–56.0) | 47.0 (42.4–56.0) | −0.80 (−6.0 – 9.0) | 0.94 |
Chest | (30.0–54.0) | 48.0 (41.5–53.0) | 48.0 (41.5–53.5) | 0.50 (−6.0 – 6.5) | 0.53 |
TSE | (136.0–240.0) | 188 (168–212) | 187 (166–213) | −2.5 (−23.5 – 30.0) | 0.82 |