Influence of recent exercise and skin temperature on ultrasound Doppler measurements in patients with rheumatoid arthritis-an intervention study
Influence of recent exercise and skin temperature on ultrasound Doppler measurements in patients with rheumatoid arthritis-an intervention study
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DOI:
10.1093/rheumatology/kep294
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发表时间:
2009-12-01
期刊:
影响因子:
5.5
通讯作者:
Bliddal, Henning
中科院分区:
文献类型:
--
作者:
Ellegaard, Karen;Torp-Pedersen, Soren;Bliddal, Henning
Objective. Use of ultrasound Doppler (USD) in diagnosing and treatment monitoring of patients with RA has increased considerably. Hyperaemia is an integral part of the inflammatory response, and the amount of USD activity in an inflamed synovium may therefore be used to quantify the inflammatory activity. It is unclear, however, whether the hyperaemia alone reflects the disease activity or may be influenced by other factors.Methods. Twenty-nine patients with RA underwent USD examination of the wrist before and immediately after three interventions. The interventions were carried out on three separate days. The interventions were (i) isometric exercise of the muscles of the hand and forearm, (ii) heating and (iii) cooling of the hand. The amount of Doppler in the wrist joint was quantified by measuring the percentage of colour in the synovium-the colour fraction (CF). The CF values estimated before and after each intervention were compared to see if any intervention affected the amount of Doppler in the synovium.Results. The CF decreased significantly after cooling of the hand (P=0.018 and