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Inter- and intra-observer reliability of contrast-enhanced magnetic resonance imaging parameters in children with suspected juvenile idiopathic arthritis of the hip

Inter- and intra-observer reliability of contrast-enhanced magnetic resonance imaging parameters... Background Previous work at our institution demonstrated discrepancies between radiologists in interpretation of contrast- enhanced magnetic resonance imaging (MRI) in suspected hip arthritis. Objective To assess inter- and intra-observer reliability of selected MRI parameters (effusion, marrow oedema and synovial thickness and enhancement) used in the diagnosis of juvenile idiopathic arthritis. Materials and methods A retrospective cohort study was conducted of patients with confirmed or suspected juvenile idiopathic arthritis who underwent hip contrast-enhanced MRI between January 2011 and September 2014. Three pediatric musculoskeletal radiologists independently assessed all scans for effusion, marrow oedema, measurement of synovial thickness, synovial en- hancement and subjective assessment of synovium. Categorical variables were analysed using the Cohen κ,and measurement using Bland-Altman plots. Results Eighty patients were included. Interobserver reliability was moderate for effusion (κ=0.5–0.7), marrow oedema (κ=0.6), subjective synovial assessment (κ=0.4–0.5) and synovial enhancement (κ=0.1–0.5). Intra-observer reliability was highest for marrow oedema (κ=0.6–0.8) and lowest for effusion (κ=0.4–0.7). Intra-observer reliability for synovial enhancement (κ= −0.7- 0.8) and subjective synovial assessment (κ=0.4–1.0) ranged from poor to excellent. For synovial thickness, intra- and interob- server Bland-Altman plots were well clustered around the mean suggesting good agreement. Conclusion There were large differences across variables and only moderate agreement between http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pediatric Radiology Springer Journals

Inter- and intra-observer reliability of contrast-enhanced magnetic resonance imaging parameters in children with suspected juvenile idiopathic arthritis of the hip

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References (27)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Medicine & Public Health; Imaging / Radiology; Pediatrics; Neuroradiology; Nuclear Medicine; Ultrasound; Oncology
ISSN
0301-0449
eISSN
1432-1998
DOI
10.1007/s00247-018-4216-7
Publisher site
See Article on Publisher Site

Abstract

Background Previous work at our institution demonstrated discrepancies between radiologists in interpretation of contrast- enhanced magnetic resonance imaging (MRI) in suspected hip arthritis. Objective To assess inter- and intra-observer reliability of selected MRI parameters (effusion, marrow oedema and synovial thickness and enhancement) used in the diagnosis of juvenile idiopathic arthritis. Materials and methods A retrospective cohort study was conducted of patients with confirmed or suspected juvenile idiopathic arthritis who underwent hip contrast-enhanced MRI between January 2011 and September 2014. Three pediatric musculoskeletal radiologists independently assessed all scans for effusion, marrow oedema, measurement of synovial thickness, synovial en- hancement and subjective assessment of synovium. Categorical variables were analysed using the Cohen κ,and measurement using Bland-Altman plots. Results Eighty patients were included. Interobserver reliability was moderate for effusion (κ=0.5–0.7), marrow oedema (κ=0.6), subjective synovial assessment (κ=0.4–0.5) and synovial enhancement (κ=0.1–0.5). Intra-observer reliability was highest for marrow oedema (κ=0.6–0.8) and lowest for effusion (κ=0.4–0.7). Intra-observer reliability for synovial enhancement (κ= −0.7- 0.8) and subjective synovial assessment (κ=0.4–1.0) ranged from poor to excellent. For synovial thickness, intra- and interob- server Bland-Altman plots were well clustered around the mean suggesting good agreement. Conclusion There were large differences across variables and only moderate agreement between

Journal

Pediatric Radiology – Springer Journals

Published: Aug 3, 2018

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