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Rheumatology 2000; 39: 1206-1213
© 2000 British Society for Rheumatology

Assessment of microvascular changes in Raynaud's phenomenon and connective tissue disease using colour Doppler ultrasound

M. Keberle, H.-P. Tony1, R. Jahns1, M. Hau, R. Haerten2 and M. Jenett

Institut für Röntgendiagnostik, University of Würzburg, Würzburg,
1 Medizinische Poliklinik, University of Würzburg, Würzburg and
2 Siemens AG, Medical Engineering Group, Erlangen, Germany

Objective. We used colour Doppler ultrasound (CDU) to differentiate primary from secondary Raynaud's phenomenon (pRP and sRP, respectively) and to assess digital vascular damage in patients with connective tissue disease (CTD).

Methods. Vascularity in the nailbeds of 15 healthy controls and 35 patients with CTD (systemic sclerosis or systemic lupus erythematosus) was quantified using a multi-D array transducer before and after cold and warm challenge, respectively. The results were compared with the clinically evaluated initial skin lesions. Vascularity was compared similarly between 10 pRP and 22 sRP patients.

Results. Vascularity at ambient temperature differed between healthy subjects and sRP patients as well as between healthy subjects and CTD patients without initial skin lesions. Patients with pRP had normal vascularity at ambient temperature but differed from healthy controls in response to a dynamic temperature challenge. CDU confirmed the clinical evaluation in 89.4% of the patients with RP and in 78.0% of the skin lesions.

Conclusion. The novel CDU technique presented here makes it possible to discriminate between pRP and sRP and to quantify vascular changes in CTD patients.

KEY WORDS: Connective tissue disease, Raynaud's phenomenon, Ultrasound, Doppler studies.

Correspondence to: M. Keberle, Institut für Röntgendiagnostik der Universität Würzburg, Josef-Schneider-Strasse 2, D-97080 Würzburg, Germany.


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