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Mohajer B, Kwee RM, Guermazi A, Berenbaum F, Wan M, Zhen G, Cao X, Haugen IK, Demehri S. Metabolic Syndrome and Osteoarthritis Distribution in the Hand Joints: A Propensity Score Matching Analysis From the Osteoarthritis Initiative. J Rheumatol 2021; 48:1608-1615. [PMID: 34329188 DOI: 10.3899/jrheum.210189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To investigate the metabolic syndrome (MetS) association with radiographic and symptomatic hand osteoarthritis (HOA). METHODS Using 1:2 propensity score matching for relevant confounders, we included 2509 participants (896 MetS positive and 1613 MetS negative) from the Osteoarthritis Initiative dataset. MetS and its components, according to the International Diabetes Federation criteria, were extracted from baseline data, and included hypertension, abdominal obesity, dyslipidemia, and diabetes. We scored distinct hand joints based on the modified Kellgren-Lawrence (mKL) grade of baseline radiographs, with HOA defined as mKL ≥ 2. In the cross-sectional analysis, we investigated the association between MetS and its components with radiographic HOA and the presence of nodal and erosive HOA phenotypes using regression models. In the longitudinal analysis, we performed Cox regression analysis for hand pain incidence in follow-up visits. RESULTS MetS was associated with higher odds of radiographic HOA, including the number of joints with OA (OR 1.32, 95% CI 1.08-1.62), the sum of joints mKLs (OR 2.42, 95% CI 1.24-4.71), mainly in distal interphalangeal joints (DIPs) and proximal interphalangeal joints (PIPs; OR 1.52, 95% CI 1.08-2.14 and OR 1.38, 95% CI 1.09-1.75, respectively), but not metacarpophalangeal (MCP) and first carpometacarpal (CMC1) joints. Hand pain incidence during follow-up was higher with MetS presence (HR 1.25, 95% CI 1.07-1.47). The erosive HOA phenotype and joints' nodal involvement were more frequent with MetS (OR 1.40, 95% CI 1.01-1.97 and OR 1.28, 95% CI 1.02-1.60, respectively). CONCLUSION MetS, a potentially modifiable risk factor, is associated with radiographic DIP and PIP OA and longitudinal hand pain incidence while sparing MCPs and CMC1s. Nodal and erosive HOA phenotypes are associated with MetS, suggestive of possible distinct pathophysiology.
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Affiliation(s)
- Bahram Mohajer
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Robert M Kwee
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Ali Guermazi
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Francis Berenbaum
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Mei Wan
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Gehua Zhen
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Xu Cao
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Ida K Haugen
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
| | - Shadpour Demehri
- This research was supported by the National Institutes of Health (NIH) National Institute on Aging under award number P01AG066603. The Osteoarthritis Initiative (OAI), a collaborative project between public and private sectors, includes 5 contracts: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262. The OAI is conducted by the OAI project investigators and is financially supported by the National Institutes of Health (NIH). Private funding partners are Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer Inc. In preparing this manuscript, publicly available OAI project datasets were used. The results of this work do not necessarily reflect the opinions of the OAI project investigators, the NIH, or the private funding partners. B. Mohajer, MD, MPH, S. Demehri, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; R.M. Kwee, MD, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA, and Department of Radiology, Zuyderland Medical Center, Heerlen/Sittard/ Geleen, the Netherlands; A. Guermazi, MD, PhD, Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA; F. Berenbaum, MD, PhD, Department of Rheumatology, Sorbonne Université, INSERM CRSA, AP-HP Hospital Saint Antoine, Paris, France; M. Wan, PhD, G. Zhen, MD, X. Cao, PhD, Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. AG has received funding from MerckSerono, AstraZeneca, Galapagos, Pfizer, Roche, TissueGene ( for consultation), and Boston Imaging Core Lab (as the president and stockholder). SD has received funding from Toshiba Medical Systems ( for consultation) and grants from the GE Radiology Research Academic Fellowship and Carestream Health ( for a clinical trial study). IH has received funding from the Southeastern Norway Health Authority. None of the authors have any conflicting personal or financial relationships that could have influenced the results of this study. The other authors have no competing interests to declare. Address correspondence to Dr. B. Mohajer, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287, USA. . Accepted for publication June 2, 2021
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