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Year : 2008  |  Volume : 3  |  Issue : 3  |  Page : 98-100

Comparison of MRI and X-ray in detection of erosions in RA

Department of Medicine, SMS Medical College, Jaipur, Rajasthan, India

Correspondence Address:
R Saigal
Department of Medicine, SMS Medical College, Jaipur, Rajasthan
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Source of Support: None, Conflict of Interest: None

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Objective: To compare magnetic resonance imaging (MRI) of hands with conventional radiographs in detection of erosions in rheumatoid arthritis (RA) patients. Methods: The study was conducted on 42 RA patients. X-ray and MRI of both hands were done and findings were compared. Results: Out of 42 patients, MRI detected erosions in 41 patients (97.6%). However, X-ray detected erosions only in 19 patients (45.2%). No patient had erosion detected on X-ray, which was not visualized by MRI. Mean numbers of erosions detected by X-rays were 2.09 ± 2.97 and by MRI were 11.30 ± 10.03 (P < 0.0001). In early RA (disease duration less than 3 months), MRI could detect erosions in some patients, whereas X-rays were unable to detect erosions in any. Conclusions: In RA, MRI is superior to conventional radiographs in detecting erosions, especially in patients with early disease.

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