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Ultrasonography in the evaluation of bone erosions
  1. W Grassi,
  2. E Filippucci,
  3. A Farina,
  4. F Salaffi,
  5. C Cervini
  1. Department of Rheumatology, University of Ancona, Italy
  1. Professor W Grassi, Clinica Reumatologica, Università degli Studi di Ancona, Ospedale “A Murri”, Via dei Colli 52, 60035 Jesi (AN), Italyreuman{at}


OBJECTIVE To demonstrate the diagnostic efficacy of ultrasonography in depicting erosions in patients with rheumatoid arthritis and to compare sonographic and radiographic findings.

METHODS Sonographic images were obtained with an AU-4 Idea Esaote Biomedica (Genoa, Italy) equipped with a 13 MHz linear transducer.

RESULTS The images reported in this essay are representative examples of the ability of ultrasonography to detect and characterise even minimal bone margin changes in rheumatoid arthritis.

CONCLUSION Ultrasonography with very high frequency transducers can depict bone erosions in early target areas of bone resorption. However, further studies are needed to validate this technique and to evaluate the relation between sonographic findings and those obtained with other imaging techniques (standard radiology, magnetic resonance).

  • ultrasonography
  • rheumatoid arthritis
  • bone erosions
  • small joints
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  • Supported by Università degli Studi di Ancona grant Ref. n.601 17–03–1999.

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