Radiology
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Randomized Controlled Trial
Interstitial lung abnormalities in a CT lung cancer screening population: prevalence and progression rate.
To determine the prevalence of interstitial lung abnormalities (ILAs) at initial computed tomography (CT) examination and the rate of progression of ILAs on 2-year follow-up CT images in a National Lung Screening Trial population studied at a single site. ⋯ ILA is common in cigarette smokers. Nonfibrotic ILA improved in about 50% of cases, and fibrotic ILA progressed in about 37%.