The Radiologic Clinics of North America: High Resolution CT of the Lung II Vol. 40:1 January 2002

The Radiologic Clinics of North America: High Resolution CT of the Lung II Vol. 40:1 January 2002 

With the emergence of effective antibiotic therapy in the middle of the twentieth century, postinfectious bronchiectasis in North America became a relatively uncommon diagnosis. A resurgence of interest in the diagnosis of bronchiectasis likely reflects the influence of enhanced diagnostic capabilities provided by advances in CT technique, in particular the advent of high-resolution CT (HRCT), and its ability to document mild or unsuspected disease.
Since the introduction of CT into clinical practice in the 1970s, evaluation of the airways has shifted to use of CT as a first-line examination, with bronchoscopy relegated to a secondary role. Conventional CT allows a direct, noninvasive visualization of structural changes involving both large- and mediumsized airways. HRCT techniques now allow identification of findings associated with small airway disease, including both structural and physiologic abnormalities. Further advances in technology, specifically the advent of multislice detector CT, promises continued improvement in CT evaluation of the airways

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