Clinical Rheumatology

, Volume 13, Issue 4, pp 589–592

Microwave thermography as a noninvasive assessment of disease activity in inflammatory arthritis

  • A. G. Macdonald
  • D. V. Land
  • R. D. Sturrock


Microwave thermography is the technique of measuring natural thermal radiation from body tissues of clinical interest. It is safe, requires no control of environmental conditions and exposes the patient to no ionising radiation. In this study, we found that microwave thermography of the knee joints showed weak correlation with some global parameters of disease activity. Bed rest alone for three days had no significant effect on microwave thermographic index (MTI). Intra-articular steroid injection, however, was associated with a marked fall in MTI both in the injected knee and the contra-lateral knee. We conclude that microwave thermography can measure inflammatory activity in the knee joints of patients with inflammatory arthritis and can respond to clinical change brought about by major treatment intervention.

Key words

Microwave Thermography Intra-articular Steroid Injection Inflammatory Arthritis 


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  1. 1.
    Barrett, A.H., Myers, P.C. Microwave thermography, a model of detecting sub-surface thermal patterns. Proceedings of the First European Congress, Amsterdam. Biol Radiol 1975, 6, 45–46.Google Scholar
  2. 2.
    Eldrich, J., Smyth, C.J. Millimetre wave thermography as subcutaneous indicator of joint inflammation. In: Proceedings of the 7th European Microwave Conference, Copenhagen, 1977, 713.Google Scholar
  3. 3.
    Land, D.V. A clinical microwave thermography system. IEE Proceedings 1987, 13, 2, Pt.A.Google Scholar
  4. 4.
    Fraser, S.M., Land, D.V., Sturrock, R.D. Microwave thermography-an index of inflammatory joint disease. Br J Rheumatol 1987, 26, 37–39.Google Scholar
  5. 5.
    Whittaker, E.T., Robinson, G. The calculus of observation, a treatise on numerical mathematics, London, Blackie & Son, 1924.Google Scholar
  6. 6.
    Arnett, F.C., Edworthy, S.M., Bloch, D.A. et al. The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum 1988, 31(3), 315–324.Google Scholar
  7. 7.
    Pinals, R.S. Miscellaneous methods for assessment of articular disease. Clin Rheum Dis 1983, 9, 323–332.Google Scholar
  8. 8.
    Will, R.K., Ring, E.F.J., Clarke, A.K., Maddison, P.J. Infrared thermography: what is its place in the 1990s. Br J Rheumatol 1992, 31, 337–344.Google Scholar
  9. 9.
    Bacon, P.A., Ring, E.F.J., Collins, A.J. Thermography in the assessment of anti-rheumatic agents. In: Rheumatoid Arthritis. Eds.: Gordon, G., Hazelman, B. Amsterdam, Elsevier, 1977, 463–475.Google Scholar
  10. 10.
    Hall, N.D., Bird, H.A., Ring, E.F.J., Bacon, P.A. A combined clinical and immunological assessment of four cyclophosphamide regimens in rheumatoid arthritis. Agents Actions 1979, 9, 97–102.Google Scholar
  11. 11.
    Land, D.V. The generation of the microwave thermographic image. Journal of Photographic Science 1989, 37, 157–160.Google Scholar
  12. 12.
    Fraser, S.M., Land, D.V., Sturrock, R.D. Microwave thermography in rheumatic disease. MEP Ltd. 1987, 16(4), 209–212.Google Scholar

Copyright information

© Clinical Rheumatology 1994

Authors and Affiliations

  • A. G. Macdonald
    • 1
  • D. V. Land
    • 2
  • R. D. Sturrock
    • 1
  1. 1.Centre for Rheumatic Diseases, Glasgow Royal InfirmaryUSA
  2. 2.Department of PhysicsUniversity of GlasgowUSA
  3. 3.Department of RheumatologyRoyal Liverpool University HospitalUK

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