title: Power Doppler ultrasonography for assessment of rheumatoid synovitis: comparison with dynamic magnetic resonance imaging.
abstract: OBJECTIVE
  The aim of this study was to compare the effectiveness of power Doppler ultrasonography (PDUS) with that of dynamic magnetic resonance imaging (MRI) for detecting active synovitis in the hands of rheumatoid arthritis (RA) patients.
  
  
  METHODS
  PDUS and dynamic MRI were performed for a total of 220 finger joints with active RA. Each synovial blood flow by PDUS and dynamic MRI was measured and categorized into four grades.
  
  
  RESULTS
  Taking dynamic MRI as a reference, PDUS showed a sensitivity of 94%, a specificity of 95%, and an accuracy of 95%.
  
  
  CONCLUSIONS
  PDUS is useful for detection of active synovitis in the overall-grade RA patients.
authors.affiliation: Department of Radiology, Shimane University Faculty of Medicine, PO Box 00693-8501, 89-1 Enya Izumo, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Fukuba
authors.forename: Takeshi
authors.initials: T
authors.lastname: Yoshizako
authors.forename: Hajime
authors.initials: H
authors.lastname: Kitagaki
authors.forename: Yohko
authors.initials: Y
authors.lastname: Murakawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kondo
authors.forename: Nobue
authors.initials: N
authors.lastname: Uchida
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013585:Synovitis / Q000175:diagnosis* / Q000209:etiology*; D018608:Ultrasonography, Doppler / Q000379:methods*