Evaluation of bone erosion in rheumatoid arthritis patients by high‐resolution peripheral quantitative computed tomography scans: Comparison between two semi‐automated programs in a three‐dimensional setting. (20th June 2021)

• Record Type: Journal Article
• Authors: Figueiredo, Camille Pinto; Perez, Mariana Ortega; Sales, Lucas Peixoto; Caparbo, Valeria de Falco; Pereira, Rosa Maria Rodrigues
• Is Part Of: International journal of rheumatic diseases. Volume 24:Number 7(2021)
• Page Start: 948
• Page End: 953
• Publication Date: 2021-06-20
• Subjects: computed tomography -- joint diseases -- metacarpophalangeal joints -- OsiriX software -- rheumatoid arthritis; Rheumatology -- Periodicals; Rheumatology -- Asia -- Periodicals; Rheumatology -- Pacific Area -- Periodicals; Rheumatic Diseases -- Periodicals; Connective Tissue Diseases -- Periodicals; Immune System Diseases -- Periodicals; 616.723
• DOI: 10.1111/1756-185X.14157
• Languages: English
• ISSNs: 1756-1841

Abstract

Abstract: Aim: The aim of this study was to compare OsiriX software with the previous published Medical Image Analysis Framework (MIAF) method to assess the volume of erosion in patients with rheumatoid arthritis (RA). Methods: Forty RA patients underwent high‐resolution peripheral quantitative computed tomography scans of the second and third metacarpophalangeal joints, and thirty‐four patients with any bone erosion were enrolled. Two techniques were applied to erosion evaluation: (a) semi‐automated MIAF software, and (b) semi‐automated segmentation by free open‐source Digital Imaging and Communications in Medicine viewer, OsiriX software. MIAF has been published before, but this is the first time that OsiriX has been used in this way in rheumatology. Bland & Altman plots described agreement between methods. Results: Forty‐eight erosions from 34 patients were analyzed. Mean age was 40.74 ± 5.32 years and mean disease duration was 10.68 ± 4.96 years. Both methods demonstrated a strong correlation regarding erosion volume ( r = 0.96, P < 0.001). Median (interquartile range) of erosion volume was 12.14 (4.5–36.07) when MIAF was considered, and 11.80 (3.45–29.42) when the OsiriX tool was used ( P = 0.139). MIAF and OsiriX showed good agreement when the Bland & Altman plot was performed. Evaluation by MIAF took 22.69 ± 6.71 minutes, whereas OsiriX took only 2.62 ± 1.09 minutes ( P < 0.001). Conclusion: The three‐dimensional segmentation of bone erosions can be done by both MIAF and OsiriX software with good agreement. However, because OsiriX is a widespread tool and faster, its method seems to be more feasible for evaluating peripheral bone damage, especially bone erosions.