341
Participants
Start Date
September 30, 1997
Primary Completion Date
June 5, 2015
Study Completion Date
June 5, 2015
Pulmonary Function Test
Spirometry, Diffusing Capacity of the Lungs (DLCO), Lung Volumes
CT Scans
volume scans, perfusion scan, ventilation scan
Questionnaires
Human Subjects Questionnaire, Baseline Dyspnea Index, Chronic Respiratory Questionnaire
MRI
proton scans, hyperpolarized 3-Helium scan
Xenon gas
ventilation CT scans
University of Iowa Hospitals and Clinics, Iowa City
National Institutes of Health (NIH)
NIH
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eric A. Hoffman
OTHER