TY - JOUR T1 - High frequency ultrasound measurement of digital dermal thickness in systemic sclerosis JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - 1140 LP - 1143 DO - 10.1136/ard.2009.114843 VL - 69 IS - 6 AU - Olga Kaloudi AU - Francesca Bandinelli AU - Emilio Filippucci AU - Maria Letizia Conforti AU - Irene Miniati AU - Serena Guiducci AU - Francesco Porta AU - Antonio Candelieri AU - Domenico Conforti AU - Genesio Grassiri AU - Walter Grassi AU - Marco Matucci-Cerinic Y1 - 2010/06/01 UR - http://ard.bmj.com/content/69/6/1140.abstract N2 - Background Currently, assessment of dermal thickness in systemic sclerosis (SSc) is performed by palpation and assessment using the modified Rodnan skin score (mRSS). Objective To verify whether high frequency ultrasound (US) may be a reliable and a reproducible method to measure digital dermal thickness. Methods In 70 patients with SSc, skin thickness was evaluated with US by 2 observers at 2 different sites on the second digit of the dominant limb to determine the interobserver variability. Patients and controls were examined twice by the first observer for intraobserver variability. Patients were divided into three subgroups according to the phase of the disease (oedematous, fibrotic or atrophic). Results At both examined areas, US showed a significant dermal thickening (p<0.001) in the whole group of patients with SSc. A low intraobserver and interobserver variability was found. A highly significant correlation between the global mRSS and the local dermal thickness at the two examined sites (p=0.032, p=0.021) was detected. Skin thickness was significantly higher in the oedematous than in the fibrotic group (p<0.001) and significantly higher in the fibrotic and the oedematous group (p<0.001) than in the atrophic group (p<0.002). Conclusions US is a reliable tool giving reproducible results, and is able to detect digital dermal thickening in SSc. ER -