Scoring hip osteoarthritis with MRI (SHOMRI): A whole joint osteoarthritis evaluation system

Sonia Lee, Lorenzo Nardo, Deepak Kumar, Cory R. Wyatt, Richard B. Souza, John Lynch, Charles E. McCulloch, Sharmila Majumdar, Nancy E Lane, Thomas M. Link

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Background: To develop a semi-quantitative MR-based hip osteoarthritis (OA) evaluation system (Scoring hip osteoarthritis with MRI, SHOMRI), and to test its reproducibility and face validity. Methods: The study involved 98 subjects with informed consent. Three-Tesla MR imaging of hip was performed in three planes with intermediate-weighted fat saturated FSE sequences. Two radiologists assessed cartilage loss, bone marrow edema pattern, subchondral cyst in 10 subregions, and assessed labrum in 4 subregions. In addition, presence or absence of ligamentum teres integrity, paralabral cysts, intra-articular body, and effusion in the hip joint were analyzed using the SHOMRI system. The reproducibility was assessed with intra-class correlation coefficient (ICC), Cohen's Kappa values and percent agreement. SHOMRI scores were correlated with radiographic Kellgren-Lawrence (KL) and OARSI atlas gradings, and clinical parameters, the hip osteoarthritis outcome score (HOOS) and hip range of motion (ROM), using Spearman's rank correlation and ordinal logistic regression. Results: ICC values were in the excellent range, 0.91 to 0.97. Cohen's Kappa values and percent agreement ranged from 0.55 to 0.79 and 66 to 99%, respectively. SHOMRI demonstrated significant correlations with KL and OARSI gradings as well as with clinical parameters, HOOS and ROM (P < 0.05). Among the SHOMRI features, subchondral cyst and bone marrow edema pattern showed the highest correlation with HOOS and ROM. Conclusion: SHOMRI demonstrated moderate to excellent reproducibility and significant correlation with radiographic gradings and clinical parameters.

Original languageEnglish (US)
Pages (from-to)1549-1557
Number of pages9
JournalJournal of Magnetic Resonance Imaging
Volume41
Issue number6
DOIs
StatePublished - Jun 1 2015

Keywords

  • hip osteoarthritis, classification system
  • hip osteoarthritis, diagnosis
  • hip osteoarthritis, magnetic resonance imaging
  • hip osteoarthritis, pathology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Lee, S., Nardo, L., Kumar, D., Wyatt, C. R., Souza, R. B., Lynch, J., McCulloch, C. E., Majumdar, S., Lane, N. E., & Link, T. M. (2015). Scoring hip osteoarthritis with MRI (SHOMRI): A whole joint osteoarthritis evaluation system. Journal of Magnetic Resonance Imaging, 41(6), 1549-1557. https://doi.org/10.1002/jmri.24722