Background The correlation between visual emphysema patterns and subsequent
progression of disease may provide a way to enrich a study population for treatment trials of …

Purpose To determine whether visually assessed patterns of emphysema at CT might
provide a simple assessment of mortality risk among cigarette smokers. Materials and …

Background The clinical significance of visually evident emphysema on CT images in
individuals without spirometric evidence of chronic obstructive pulmonary disease (COPD) …

Background Long-term studies of chronic obstructive pulmonary disease (COPD) can
evaluate emphysema progression. Adjustment for differences in equipment and scanning …

Background The relationship between emphysema progression and long-term outcomes is
unclear. Purpose To determine the relationship between emphysema progression at CT and …

Background Visual assessment remains the standard for evaluating emphysema at CT;
however, it is time consuming, is subjective, requires training, and is affected by variability …

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 …

Purpose Visual assessment of computed tomography (CT) of the lung is routinely employed
in the diagnosis of emphysema. Quantitative CT (QCT) can complement visual CT but must …

Rationale: Emphysema occurs in distinct pathologic patterns, but little is known about the
epidemiologic associations of these patterns. Standard quantitative measures of …

Background Pulmonary emphysema is divided into 3 major subtypes at autopsy:
centrilobular, paraseptal, and panlobular emphysema. These subtypes can be defined by …