Fig. 1
From: A formula for predicting emphysema extent in combined idiopathic pulmonary fibrosis and emphysema
Correlation between CPFE Index and emphysema extent Correlation between predicted emphysema extent (CPFE Index) and observed emphysema extent (on HRCT) for patients with IPF and emphysema in (A) the clinical trial test cohort and (B) the real-world test cohort. CPFE combined pulmonary fibrosis and emphysema; HRCT high-resolution computed tomography; IPF idiopathic pulmonary fibrosis CPFE, combined pulmonary fibrosis and emphysema; HRCT, high-resolution computed tomography; IPF, idiopathic pulmonary fibrosis