Quantitative computed tomography (QCT) can provide reliable and valid measures of lung
structure and volumes. Similar to lung function measured by spirometry, lung measures …

The fundamental importance of calibration for any measuring device is indisputable, but
computed tomography (CT) calibration in longitudinal lung densitometry studies is largely …

BACKGROUND: The role of computerised tomography (CT) lung density measurements in
objective quantification of emphysema is uncertain. The aim of this study was to determine …

Quantitative computed tomography is being increasingly used to quantify the features of
chronic obstructive pulmonary disease, specifically emphysema, air trapping, and airway …

Objectives: The objectives of this study were to investigate whether computed tomography
(CT) densitometry can be applied consistently in different centers; and to evaluate the …

Rationale: There is limited knowledge about the relationship between respiratory symptoms
and quantitative high-resolution computed tomography measures of emphysema and airway …

OBJECTIVE. Emphysema is a disease of the lung characterized by the destruction of the
alveolar sac walls. Several quantitative densitometric measures of emphysema from …

Lung densitometry in drug evaluation trials can be confounded by changes in inspiration
levels between computed tomography (CT) scans, limiting its sensitivity to detect changes …

Purpose: To determine how to adjust lung density measurements for the volume of the lung
calculated from computed tomography (CT) scans in patients with emphysema. Material and …

Accurate diagnosis and quantification of pulmonary emphysema in vivo is important to
understand the natural history of the disease, to assess the extent of the disease, and to …