Shaoyu Zheng, Zexuan Zhou, Guangzhou Du, Qingzi Chen, Shaoqi Chen, Jianqun Lin, Shijian Hu, Weijin Zhang, Kedi Zheng, Jinghua Zhuang, Meigan Huang, Barbara Ruaro, Cosimo Bruni, Anna-Maria Hoffmann-Vold, Marco Matucci-Cerinic, Daniel E. Furst, Yukai Wang
{"title":"The diagnostic utility of lung ultrasound in the assessment of interstitial lung disease associated with rheumatoid arthritis","authors":"Shaoyu Zheng, Zexuan Zhou, Guangzhou Du, Qingzi Chen, Shaoqi Chen, Jianqun Lin, Shijian Hu, Weijin Zhang, Kedi Zheng, Jinghua Zhuang, Meigan Huang, Barbara Ruaro, Cosimo Bruni, Anna-Maria Hoffmann-Vold, Marco Matucci-Cerinic, Daniel E. Furst, Yukai Wang","doi":"10.1186/s13075-025-03626-4","DOIUrl":null,"url":null,"abstract":"To investigate the diagnostic accuracy of lung ultrasound (LUS) for interstitial lung disease (ILD) in patients with rheumatoid arthritis (RA). This retrospective study included patients over 18 years with RA evaluated at the Department of Rheumatology and Immunology of Shantou Central Hospital. All patients underwent chest high-resolution computed tomography (HRCT) and LUS within one month. The LUS was performed in a total of 50 scanning sites (ScS), and the number of B-lines present in each ScS was counted and summed up as B-lines score. A positive judgement was given on LUS when the B-lines score exceeded 10. The presence and patterns of ILD were defined by HRCT findings. ROC curve analysis was used to calculate the accuracy of LUS to detect ILD. A total of 120 RA patients (86 women, with a median age of 56.0 [50.0–64.0] years) were enrolled. Based on the HRCT, 76 patients were found to have radiographic ILD, with 63 exhibiting nonspecific interstitial pneumonia (NSIP) and 13 showing usual interstitial pneumonia (UIP). Sonographic ILD was detected in 76 patients who underwent LUS examination. The concordance rate between two modalities was 83.33% (Kappa value = 0.64, 95% CI 0.50–0.78). The diagnostic sensitivity and specificity of LUS were 86.84% and 77.27%, respectively. The positive predictive value, negative predictive value, a positive likelihood ratio and a negative likelihood ratio were 86.84%, 77.27%, 3.82, and 0.17, respectively. The number of B-lines in RA with ILD and without ILD on HRCT showed a significant difference (34.0 [15.0–96.5] vs. 6.5 [2.5–10.0], P < 0.001). The presence of 12 B-lines on 50 ScS was the optimal cutoff value for detecting RA-ILD (AUC = 0.89, 95% CI 0.82–0.94, sensitivity of 85.53%, specificity of 81.82%, P < 0.001). Lung ultrasound is a valuable diagnostic tool for RA-ILD and can be used as a screening method to identify patients who require further evaluation with chest HRCT.","PeriodicalId":8419,"journal":{"name":"Arthritis Research & Therapy","volume":"28 1","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arthritis Research & Therapy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s13075-025-03626-4","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
To investigate the diagnostic accuracy of lung ultrasound (LUS) for interstitial lung disease (ILD) in patients with rheumatoid arthritis (RA). This retrospective study included patients over 18 years with RA evaluated at the Department of Rheumatology and Immunology of Shantou Central Hospital. All patients underwent chest high-resolution computed tomography (HRCT) and LUS within one month. The LUS was performed in a total of 50 scanning sites (ScS), and the number of B-lines present in each ScS was counted and summed up as B-lines score. A positive judgement was given on LUS when the B-lines score exceeded 10. The presence and patterns of ILD were defined by HRCT findings. ROC curve analysis was used to calculate the accuracy of LUS to detect ILD. A total of 120 RA patients (86 women, with a median age of 56.0 [50.0–64.0] years) were enrolled. Based on the HRCT, 76 patients were found to have radiographic ILD, with 63 exhibiting nonspecific interstitial pneumonia (NSIP) and 13 showing usual interstitial pneumonia (UIP). Sonographic ILD was detected in 76 patients who underwent LUS examination. The concordance rate between two modalities was 83.33% (Kappa value = 0.64, 95% CI 0.50–0.78). The diagnostic sensitivity and specificity of LUS were 86.84% and 77.27%, respectively. The positive predictive value, negative predictive value, a positive likelihood ratio and a negative likelihood ratio were 86.84%, 77.27%, 3.82, and 0.17, respectively. The number of B-lines in RA with ILD and without ILD on HRCT showed a significant difference (34.0 [15.0–96.5] vs. 6.5 [2.5–10.0], P < 0.001). The presence of 12 B-lines on 50 ScS was the optimal cutoff value for detecting RA-ILD (AUC = 0.89, 95% CI 0.82–0.94, sensitivity of 85.53%, specificity of 81.82%, P < 0.001). Lung ultrasound is a valuable diagnostic tool for RA-ILD and can be used as a screening method to identify patients who require further evaluation with chest HRCT.
期刊介绍:
Established in 1999, Arthritis Research and Therapy is an international, open access, peer-reviewed journal, publishing original articles in the area of musculoskeletal research and therapy as well as, reviews, commentaries and reports. A major focus of the journal is on the immunologic processes leading to inflammation, damage and repair as they relate to autoimmune rheumatic and musculoskeletal conditions, and which inform the translation of this knowledge into advances in clinical care. Original basic, translational and clinical research is considered for publication along with results of early and late phase therapeutic trials, especially as they pertain to the underpinning science that informs clinical observations in interventional studies.