Assessment of the skin with 2D-shear wave elastography in the systemic scleroderma and its correlation with pulmonary involvement.
JOURNAL OF CLINICAL ULTRASOUND : JCU 2023;
51:1205-1211. [PMID:
37199062 DOI:
10.1002/jcu.23488]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 05/19/2023]
Abstract
PURPOSE
The purpose of this study was to assess the skin involvement in systemic scleroderma patients (SSc) with 2D-Shear Wave Elastography (2D-SWE) and to review the corelation between skin elasticity and pulmonary involvement.
METHODS
Thirty SSc patients and 30 controls were examined using 2D-SWE. The demographics matched both groups. B-mode ultrasound (US) and 2D-SWE assessed skin thickness and elastography from the ventral side of the right forearm in each subjective. ROC analysis determined optimal group separation cut-off values. A rheumatologist applied mRSS for SSc patients. US, mRSS, and pulmonary involvement correlations were reviewed.
RESULTS
US parameter values (skin thickness, median kPa, median m/s) were higher in the SSc patient group (1.78 ± 0.36 mm, 22.15 ± 16.26, 2.60 ± 0.82, respectively) compared to the control group (1.55 ± 0.2 mm, 7.45 ± 1.84, 1.56 ± 0.2, respectively, p < 0.05). When the optimal cut-off SWE values for separating groups was determined as 10.5 kPa and 1.87 m/s, the sensitivity was 93% and the specificity was 97%. Pearson's correlation analysis showed a strong positive correlation between mRSS and median SWE values (kPa, r = 0.626, p = 0.001; m/s, r = 0.638, p < 0.001). There was no correlation between pulmonary involvement of SSc patients with mRSS and US parameters.
CONCLUSION
2D-SWE is a promising non-invasive method to evaluate skin involvement in SSc patient group. For pulmonary involvement we need more data with bigger patient groups.
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