The OMERACT MRI in Arthritis Working Group — Update on Status and Future Research Priorities

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.

From the Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; University of New South Wales, Sydney, Australia; Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC, Paris, France; Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Spire Sciences, Boca Raton, Florida, USA; Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark; Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine; and Seattle Rheumatology Associates, Seattle, Washington, USA; Department of Radiology, Charité University Hospital, Berlin, Germany; Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of California, San Francisco, and Synarc Inc., San Francisco, California, USA. M. Østergaard, MD, PhD, DMSc, Professor of Rheumatology, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital and Department of Clinical Medicine, University of Copenhagen; P. Bird, BMed (Hons), FRACP, PhD, Grad Dip MRI, Senior Lecturer, University of NSW; F. Gandjbakhch, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière, APHP, Université Paris 6-UPMC; I. Eshed, MD, Professor of Radiology, Sheba Medical Center, Tel Aviv University; I.K. Haugen, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; E.A. Haavardsholm, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital; S. Lillegraven, MD, PhD, Postdoctoral Researcher, Department of Rheumatology, Diakonhjemmet Hospital, University of Oslo; V. Foltz, MD, Practicing Rheumatologist, Department of Rheumatology, Pitié-Salpêtrière Hospital, APHP, Université Paris 6-UPMC; D. Glinatsi, MD, Research Fellow, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Glostrup Hospital, University of Copenhagen; C. Peterfy, MD, PhD, FRCP, Chief Executive Officer, Spire Sciences; B. Ejbjerg, MD, PhD, Consultant Rheumatologist, Department of Rheumatology, Slagelse Hospital; P. Bøyesen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; P.J. Mease, MD, Division of Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, and Seattle Rheumatology Associates; K.G. Hermann, MD, PhD, Consultant Radiologist, Department of Radiology, Charité University Hospital; P. Emery, MA, MD, FRCP, ARC Professor in Rheumatology, Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit; H.K. Genant, MD, FACR, FRCR, Professor Emeritus of Radiology, Medicine and Orthopedics, University of California, San Francisco, and Synarc Inc.; P.G. Conaghan, MB, BS, PhD, FRACP, FRCP, Professor of Musculoskeletal Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit.