RT Journal Article SR Electronic T1 Associations of CT evaluations of antigravity muscles, emphysema and airway disease with longitudinal outcomes in patients with COPD JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 295 OP 297 DO 10.1136/thoraxjnl-2020-215085 VO 76 IS 3 A1 Naoya Tanabe A1 Susumu Sato A1 Kazuya Tanimura A1 Tsuyoshi Oguma A1 Atsuyasu Sato A1 Shigeo Muro A1 Toyohiro Hirai YR 2021 UL http://thorax.bmj.com/content/76/3/295.abstract AB Multiple CT indices are associated with disease progression and mortality in patients with COPD, but which indices have the strongest association remain unestablished. This longitudinal 10-year observational study (n=247) showed that the emphysema severity on CT is more closely associated with the progression of airflow limitation and that a reduction in the cross-sectional area of erector spinae muscles (ESMCSA) on CT is more closely associated with mortality than the other CT indices, independent of patient demographics and pulmonary function. ESMCSA is a useful CT index that is more closely associated with long-term mortality than emphysema and airway disease in patients with COPD.