Multiscanner Comparison of UHCT for Small Airway Disease in Emphysema Patients Compared With Quantitative Expiratory CT Parameters

Ultra-high-resolution CT demonstrates superior capabilities in evaluating SAD in patients with emphysema, providing more precise and reproducible measurements compared with conventional CT systems. The strong correlations between structural and functional parameters validate the clinical relevance of these imaging biomarkers. The improved visualisation and quantification of distal airways, achieved with acceptable radiation exposure, represents an important advancement in SAD assessment.