Association of radiographic emphysema and airflow obstruction with lung cancer.

Rationale: To study the relationship between emphysema and/or airflow obstruction and lung cancer in a high-risk population.

Objective: We studied lung cancer related to radiographic emphysema and spirometric airflow obstruction in tobacco-exposed persons who were screened for lung cancer using chest computed tomography (CT).

Methods: Subjects completed questionnaires, spirometry, and low-dose helical chest CT.

Non-cardiac findings on coronary electron beam computed tomography scanning.

The objective of this study was to estimate the prevalence and significance of non-cardiac findings on Electron Beam Computed Tomography (EBT) scanning when used in population screening for the quantitative measurement of coronary artery calcium and estimate of coronary risk. Clinic files of 1366 subjects who underwent EBT scanning between September 1996 and December 1998 at the University of Pittsburgh affiliated Comprehensive Heart Care Center were abstracted. The files of 1356 subjects contained the calcium score and non-cardiac findings as reported by board-certified radiologists, who interpreted the scans during the period 1996-1998.