Objectives To determine the relationship between lung function impairment and quantitative
computed tomography (CT) measurements of air trapping and emphysema in a population …

OBJECTIVE. This study evaluates the relationships between quantitative CT (QCT) and
spirometric measurements of disease severity in cigarette smokers with and without chronic …

OBJECTIVE. The purpose of our study was to determine the attenuation threshold value for
the detection and quantification of air trapping using paired inspiratory and expiratory …

Emphysema, airway wall thickening and air trapping are associated with chronic obstructive
pulmonary disease (COPD). All three can be quantified by computed tomography (CT) of the …

Study objectives We determined whether emphysema demonstrated on high-resolution CT
(HRCT) scanning in apparently well smokers is associated with airflow obstruction …

Background CT is used to quantify abnormal changes in the lung parenchyma of smokers
that might overlap chronic obstructive pulmonary disease (COPD), but studies on the …

The severity of chronic obstructive pulmonary disease (COPD) is evaluated not only by
airflow limitation but also by factors such as exercise capacity and body mass index. Recent …

Background Chronic obstructive pulmonary disease (COPD) is characterized by airflow
limitation caused by emphysema and small airway narrowing. Quantitative evaluation of …

We studied 80 subjects (63 M, 17 F; 23-82 yrs) and related lung computerized tomography
(CT) density with age, height, spirometry, lung volumes, diffusing capacity and arterial blood …

Objectives To determine the correlation between CT measurements of emphysema or
peripheral airways and airflow obstruction in chronic obstructive pulmonary disease …