Rheumatoid arthritis bone erosion volumes on CT and MRI: reliability and correlations with erosion scores on CT, MRI and radiography

Objectives:To investigate intramodality and intermodality agreements of CT and MRI erosion volumes in metacarpophalangeal (MCP) joints in rheumatoid arthritis (RA), and to compare the volumes with erosion scores for CT, MRI and radiography.Methods:In total, 17 patients with RA and four healthy contr...

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Bibliographic Details
Published in:Annals of the rheumatic diseases 2007-10, Vol.66 (10), p.1388-1392
Main Authors: Døhn, Uffe Møller, Ejbjerg, Bo J, Hasselquist, Maria, Narvestad, Eva, Court-Payen, Michel, Szkudlarek, Marcin, Møller, Jakob, Thomsen, Henrik S, Østergaard, Mikkel
Format: Article
Language:English
Subjects:
Adult
Aged
Agreements
Arthritis, Rheumatoid - diagnostic imaging
Arthritis, Rheumatoid - pathology
Biological and medical sciences
bone erosions
Calcification
computed tomography
Concise Report
Diseases of the osteoarticular system
Female
Finger Phalanges - diagnostic imaging
Finger Phalanges - pathology
Hand Bones - diagnostic imaging
Hand Bones - pathology
Humans
Image Interpretation, Computer-Assisted - methods
Inflammatory joint diseases
magnetic resonance imaging
Magnetic Resonance Imaging - methods
Male
Medical sciences
Metacarpal Bones - diagnostic imaging
Metacarpal Bones - pathology
Metacarpophalangeal Joint - diagnostic imaging
Metacarpophalangeal Joint - pathology
Middle Aged
Patients
Radiography
Reading
Reproducibility of Results
rheumatoid arthritis
Sensitivity and Specificity
Studies
Tomography, X-Ray Computed - methods
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Description
Summary:Objectives:To investigate intramodality and intermodality agreements of CT and MRI erosion volumes in metacarpophalangeal (MCP) joints in rheumatoid arthritis (RA), and to compare the volumes with erosion scores for CT, MRI and radiography.Methods:In total, 17 patients with RA and four healthy controls underwent unilateral CT, MRI and radiography of second to fifth MCP joints in one hand. Erosion volumes (using OSIRIS software) and scores were determined from CT, MRI and radiography (scores only).Results:CT, MRI and radiography detected 77, 62 and 12 erosions, respectively. On CT, the mean erosion volume was 26 mm3 (median 10; range 0 to 248) and 30 mm3 (18; 1 to 163) on MRI. Total erosion volumes (per patient/control) were 97 mm3 (29; 0 to 485) on CT and 90 mm3 (46; 0 to 389) on MRI. For volumes, Spearman correlation coefficients were 0.96 to 0.99 (CT vs CT), 0.95 to 0.98 (MRI vs MRI) and 0.64 to 0.89 (CT vs MRI), all p
ISSN:0003-4967
1468-2060
DOI:10.1136/ard.2007.072520