RT Journal Article
SR Electronic
T1 A multireader reliability study comparing conventional high-field magnetic resonance imaging with extremity low-field MRI in rheumatoid arthritis.
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP 854
OP 856
VO 34
IS 4
A1 Bird, Paul
A1 Ejbjerg, Bo
A1 Lassere, Marissa
A1 Østergaard, Mikkel
A1 McQueen, Fiona
A1 Peterfy, Charles
A1 Haavardsholm, Espen
A1 O'Connor, Philip
A1 Genant, Harry
A1 Edmonds, John
A1 Emery, Paul
A1 Conaghan, Philip G
YR 2007
UL http://www.jrheum.org/content/34/4/854.abstract
AB The use of extremity low-field magnetic resonance imaging (E-MRI) is increasing, but relatively few data exist on its reproducibility and accuracy in comparison with high-field MRI, especially for multiple readers. The aim of this multireader exercise of rheumatoid arthritis wrist and metacarpophalangeal joints was to assess the intermachine (high vs low-field) agreement and to assess the interreader agreement on high and low-field images. Study findings suggested that E-MRI performs similarly to conventional high-field MRI regarding assessment of bone erosions. However, for synovitis and bone edema, considerable intermachine and interreader variability was found. Further studies are needed before recommendations on multireader E-MRI assessment of these pathologies can be given.