• 1
    Elhai M, Guerini H, Bazeli R, Avouac J, Freire V, Drape JL, et al. Ultrasonographic hand features in systemic sclerosis and correlates with clinical, biologic, and radiographic findings. Arthritis Care Res (Hoboken) 2012;64:12449.
  • 2
    Cuomo G, Zappia M, Abignano G, Iudici M, Rotondo A, Valentini G. Ultrasonographic features of the hand and wrist in systemic sclerosis. Rheumatology (Oxford) 2009;48:14147.
  • 3
    Ingegnoli F, Boracchi P, Soldi A, Ingegnoli A, Gualtierotti R, Galbiati V, et al. The role of ultrasonography in the assessment of skeletal hand involvement in systemic sclerosis [letter]. J Med Ultrasound 2011;19:1412.
  • 4
    Cuomo G, Zappia M, Iudici M, Abignano G, Rotondo A, Valentini G. The origin of tendon friction rubs in patients with systemic sclerosis: a sonographic explanation. Arthritis Rheum 2012;64:12913.
  • 5
    Avouac J, Guerini H, Wipff J, Assous N, Chevrot A, Kahan A, et al. Radiological hand involvement in systemic sclerosis. Ann Rheum Dis 2006;65:108892.
  • 6
    Wakefield RJ, Balint PV, Szkudlarek M, Filippucci E, Backhaus M, D'Agostino MA, et al, for the OMERACT 7 Special Interest Group. Musculoskeletal ultrasound including definitions for ultrasonographic pathology. J Rheumatol 2005;32:24857.
  • 7
    Tagliafico A, Panico N, Serafini G, Ghio M, Martinoli C. The thickness of the A1 pulleys reflects the disability of hand mobility in scleroderma: a pilot study using HFUS. Eur J Radiol 2011;77:2547.
  • 8
    Stoenoiu M, Houssiau F, Lecouvet F. Tendon friction rubs in systemic sclerosis: a possible explanation. An ultrasound and magnetic resonance imaging study. Rheumatology (Oxford) 2013;52:52933.