Does low-field dedicated extremity MRI (E-MRI) reliably detect bone erosions in rheumatoid arthritis? A comparison of two different E-MRI units and conventional radiography with high-resolution CT scanning

Annals of the Rheumatic Diseases
Anne Duer-JensenMikkel Østergaard

Abstract

To compare the ability of two different E-MRI units and conventional radiography (CR) to identify bone erosions in rheumatoid arthritis (RA) metacarpophalangeal (MCP) and wrist joints with CT scanning as the standard reference method. 20 patients with RA and 5 controls underwent CR, CT and two E-MRI examinations (Esaote Biomedica Artoscan and MagneVu MV1000) of one hand during a 2-week period. In all modalities, each bone of the wrist and MCP joints was blindly evaluated for erosions. MagneVu images were also assessed for the proportion of each bone being visualised. 550 bones were examined. CT, Artoscan, MagneVu and CR detected 188, 116, 55 and 45 bones with erosions, respectively. The majority were located in the carpal bones. The sensitivity of the Artoscan for detecting erosions was higher than that of the MagneVu and CR (MCP joints: 0.68, 0.54 and 0.57, respectively; wrists: 0.50, 0.23 and 0.29). Corresponding specificities for detecting erosions were 0.94, 0.93 and 0.99, respectively, in the MCP joints and 0.92, 0.98 and 0.98 in the wrist. The MagneVu allowed visualisation of 1.5 cm of the ventral-dorsal diameter of the bone. In the wrist, 31.6% of bones were visualised entirely and 37.9% of bones were 67-99% visualised. ...Continue Reading

Citations

Aug 19, 2011·Skeletal Radiology·Ulrich WeberWalter P Maksymowych
Nov 7, 2009·Zeitschrift für Rheumatologie·B OstendorfUNKNOWN Kommission Bildgebende Verfahren der DGRh
Aug 25, 2011·Zeitschrift für Rheumatologie·H Kellner, W Kellner
Sep 21, 2012·Annals of the Rheumatic Diseases·Andreas AlbrechtGeorg Schett
Jul 24, 2012·Rheumatic Diseases Clinics of North America·Orrin M TroumEwa Olech
Jun 15, 2011·Magnetic Resonance Imaging Clinics of North America·Jennifer L Demertzis, David A Rubin
May 30, 2009·European Journal of Radiology·Mikael BoesenHenning Bliddal
Dec 8, 2010·Arthritis Care & Research·Stanley B CohenMikkel Ostergaard
Apr 1, 2011·Topics in Magnetic Resonance Imaging : TMRI·Michael C ForneyJean P Schils
Mar 18, 2021·Der Radiologe·Matthias Bollow

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