Relationship between high-resolution computed tomography quantitative imaging analysis and physiological and clinical features in antisynthetase syndrome-related interstitial lung disease

作者：Sangmee Bae, Fereidoun Abtin, Grace Kim, Daniela Markovic, Cato Chan, Siamak Moghadam‐Kia, Chester V. Oddis, Daniel I. Sullivan, Galina Marder, Swamy Venuturupalli, Paul F. Dellaripa, Tracy J. Doyle, Gary Matt Hunninghake, Jeremy Falk, Christina Charles‐Schoeman, Donald P. Tashkin, Jonathan Goldin, Rohit Aggarwal · 发表于：RMD Open · 年份：2024 · DOI：10.1136/rmdopen-2024-004592 · 被引用次数：4 · 研究领域：Inflammatory Myopathies and Dermatomyositis、Systemic Sclerosis and Related Diseases、Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis

Objectives To explore the association between the extent of CT abnormalities by quantitative imaging analysis (QIA) and clinical/physiological disease parameters in patients with antisynthetase syndrome associated interstitial lung disease (ARS-ILD). Methods We analysed 20 patients with antisynthetase antibodies and active ILD enrolled in the Abatacept in Myositis-Associated Interstitial Lung Disease study. High-resolution chest CT was obtained at weeks 0, 24 and 48 and QIA scored the extent of ground glass (quantitative score for ground glass), fibrosis (quantitative score for lung fibrosis, QLF) and total ILD (quantitative ILD, QILD). Mixed-effects models estimated longitudinal QIA scores over time. Associations between QIA scores with clinical/physiological parameters were analysed longitudinally using repeated-measures mixed-effects models. Results Patients were median age 57 years, 55% males and 85% white. Higher (worse) baseline QIA scores correlated with lower baseline forced vital capacity (FVC) and diffusing capacity adjusted for haemoglobin (DLCO). Longitudinal QIA trajectories trended towards improving scores during the trial, and patients on O 2 at baseline had worsening QIA trajectories which were different from patients who were not on O 2 . Longitudinal QIA scores demonstrated strong associations with both FVC and DLCO over time. Higher QILD scores over time were also associated with worse dyspnoea scores, pulmonary visual analogue scale, physician and patient ...