Article Text

SP0146 3D Doppler Ultrasound Findings in Healthy Wrist and Finger Tendon Sheaths – Can Feeding Vessels Lead To Misinterpretation in Doppler-Detected Tenosynovitis?
  1. M. Ammitzbøll-Danielsen
  1. Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark


Introduction To investigate the presence of feeding vessels in or in close proximity to extensor and flexor tendon sheaths at the wrists level and in finger flexor tendon sheaths in healthy controls, using 3D ultrasound (US), which may cause pitfalls in order to ensure correct interpretation of Doppler signals when diagnosing tenosynovitis.

Method Forty healthy participants (20 women and 20 men in the age 23–67 years) without prior history of arthritis, tendon diseases or present pain in their hands were included. Twenty participants had 3D Doppler US of the 2nd and 3rd finger and twenty of the right wrist. US was carried out using a GE Logiq E9 unit with a 3D US probe. The colour Doppler settings were according to published recommendation.

Results The feeding vessels in or in close proximity to the tendon sheaths were found in the flexor and extensor tendons sheaths at least once in each participant. No significant difference in feeding vessels was seen between the radial and carpal level in the wrist (p=0.06) or between the 2nd and 3rd flexor tendon sheath (p=0.84).

Conclusion Doppler findings in or in close proximity to the tendon sheaths were common in wrists and fingers in healthy participants. These feeding vessels can be a source of error, not only due to their presence but also because they may be interpreted as being inside the tendon sheath due to blooming and reverberations artefacts. These vessels should be taken into consideration when diagnosing Doppler tenosynovitis.

Disclosure of Interest None declared

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