Visual and Quantitative Assessments of Regional Xenon-Ventilation Using Dual-Energy CT in Asthma-Chronic Obstructive Pulmonary Disease Overlap Syndrome: A Comparison with Chronic Obstructive Pulmonary Disease
Hye Jeon Hwang, Sang Min Lee, Joon Beom Seo, Jae Seung Lee, Namkug Kim, Sei Won Lee, Yeon‐Mok Oh
Abstract
OBJECTIVE: To assess the regional ventilation in patients with asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) using xenon-ventilation dual-energy CT (DECT), and to compare it to that in patients with COPD. MATERIALS AND METHODS: test. RESULTS: = 0.041); however, EI was not significantly different between the two groups. CONCLUSION: The ventilation abnormalities on the visual and quantitative assessments of xenon-ventilation DECT differed between patients with ACOS and patients with COPD. Xenon-ventilation DECT may demonstrate the different physiologic changes of pulmonary ventilation in patients with ACOS and COPD.
Topics & Concepts
MedicinePulmonary diseaseAsthmaDiseaseCOPDCardiologyInternal medicineVentilation (architecture)Dual energyRadiologyBone mineralMechanical engineeringOsteoporosisEngineeringAdvanced X-ray and CT ImagingAtomic and Subatomic Physics ResearchRadiation Dose and Imaging