Related Experiment Video
Updated: May 1, 2026
Automated Joint Space Detection Improves Bone Segmentation Accuracy
Published on: November 28, 2025
Assessing structural changes in axial spondyloarthritis using a low-dose biplanar imaging system
Anna Moltó1, Véronique Freire2, Antoine Feydy3
1Rheumatology B Department, Cochin Hospital, Medicine Faculty, APHP, Paris Descartes University, Paris, France, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain, INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, France, Department of Radiology, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada, Radiology B Department, Cochin Hospital, Medicine Faculty, APHP, Paris Descartes University, Paris, France and Department of Medicine, University of Alberta, Edmonton, AB, Canada, Physical Medicine and Rehabilitation Department, Cochin Hospital, Paris Descartes University, APHP, Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique and AP-HP, Dept of Rheumatology, Pitie Salpetriere University Hospital, Paris, France.Rheumatology B Department, Cochin Hospital, Medicine Faculty, APHP, Paris Descartes University, Paris, France, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain, INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, France, Department of Radiology, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada, Radiology B Department, Cochin Hospital, Medicine Faculty, APHP, Paris Descartes University, Paris, France and Department of Medicine, University of Alberta, Edmonton, AB, Canada, Physical Medicine and Rehabilitation Department, Cochin Hospital, Paris Descartes University, APHP, Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique and AP-HP, Dept of Rheumatology, Pitie Salpetriere University Hospital, Paris, France.Rheumatology B Department, Cochin Hospital, Medicine Faculty, APHP, Paris Descartes University, Paris, France, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain, INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, Franc
EOS imaging shows high agreement with conventional radiography for spinal ankylosis in axial SpA patients. Further research is needed to confirm its utility in sacroiliitis classification.
Area of Science:
- Radiology
- Rheumatology
- Medical Imaging
Background:
- Axial spondyloarthritis (SpA) requires frequent spine imaging, exposing patients to significant radiation.
- EOS imaging offers a low-dose alternative to conventional radiography (CR).
Purpose of the Study:
- To compare the performance of EOS imaging with CR for classifying and monitoring axial SpA.
- To evaluate intermodality agreement for sacroiliitis and spinal ankylosis assessment.
Main Methods:
- Observational, cross-sectional study comparing EOS and CR in 48 SpA patients and 48 controls.
- Blind assessment of sacroiliitis (mNY criteria) and spinal ankylosis (mSASSS).
- Intermodality agreement measured using kappa, weighted kappa, ICC, and Bland-Altman plots.
Main Results:
- High intermodality agreement for spinal ankylosis (mSASSS) between EOS and CR (0.97).
- Moderate agreement for sacroiliitis classification (0.50).
- CR was rated easier to interpret than EOS.
Conclusions:
- EOS imaging is suitable for monitoring spinal structural damage (ankylosis) in axial SpA, potentially replacing CR.
- The role of EOS in sacroiliitis classification requires further investigation.
More Related Videos
06:28Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
Published on: December 13, 2024
08:52Software-Assisted Quantitative Measurement of Osteoarthritic Subchondral Bone Thickness
Published on: March 18, 2022