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Reduced joint assessment vs comprehensive assessment for ultrasound detection of synovitis in juvenile idiopathic

Paz Collado1, Esperanza Naredo, Cristina Calvo

  • 1Department of Rheumatology, Pediatric Rheumatology Unit, Severo Ochoa University Hospital, Av. Orellana s/n. 28910 Madrid, Spain. paxcollado@yahoo.es

Rheumatology (Oxford, England)
|April 27, 2013
PubMed

Insights

A simplified 10-joint power Doppler ultrasound (PDUS) assessment effectively evaluates synovitis in juvenile idiopathic arthritis (JIA). This reduced PDUS method is valid, feasible, and reliable for clinical practice.

Area of Science:

  • Pediatric Rheumatology
  • Musculoskeletal Ultrasound
  • Inflammatory Arthritis

Background:

  • Juvenile idiopathic arthritis (JIA) requires accurate assessment of synovitis.
  • Current comprehensive ultrasound assessments can be time-consuming.
  • A validated, reduced joint assessment is needed for efficient clinical evaluation.

Purpose of the Study:

  • To propose and validate a reduced joint power Doppler ultrasound (PDUS) assessment for synovitis in JIA.
  • To compare its feasibility, reliability, and sensitivity to change against a comprehensive 44-joint PDUS assessment.

Main Methods:

  • A multicentre study involving 42 children with active JIA.
  • Blinded clinical and PDUS assessments of joints using greyscale (GS) and power Doppler.
  • Development of a reduced 10-joint PDUS assessment based on joint involvement frequency.

Main Results:

  • The 10-joint PDUS assessment identified 100% of children with synovitis.
  • High correlation between the reduced and comprehensive PDUS assessments.
  • The reduced model demonstrated superior responsiveness to change with good intra- and interobserver agreement.

Conclusions:

  • The 10-joint PDUS assessment is a valid and feasible tool for evaluating synovitis in JIA.
  • This reduced approach offers a practical alternative for clinical settings.
Abstract

Keywords:
Dopplerdiagnostic imaginginflammationjuvenile idiopathic arthritissynoviumultrasonographyvalidity

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