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DOI: 10.1148/radiol.2413051535
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(Radiology 2006;241:663-683.)
© RSNA, 2006

State of the Art

Recent Advances in Chest Radiography1

H. Page McAdams, MD, Ehsan Samei, PhD, James Dobbins, III, PhD, Georgia D. Tourassi, PhD and Carl E. Ravin, MD

1 From the Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center, Box 3808, Durham, NC 27710. Received September 14, 2005; revision requested October 24; revision received November 15; accepted January 2, 2006; final version accepted January 6. Supported by National Institutes of Health grant R01 CA80490 and a research agreement with from GE Healthcare. Address correspondence to H.P.M. (e-mail: Page.mcadams{at}duke.edu).

There have been many remarkable advances in conventional thoracic imaging over the past decade. Perhaps the most remarkable is the rapid conversion from film-based to digital radiographic systems. Computed radiography is now the preferred imaging modality for bedside chest imaging. Direct radiography is rapidly replacing film-based chest units for in-department posteroanterior and lateral examinations. An exciting aspect of the conversion to digital radiography is the ability to enhance the diagnostic capabilities and influence of chest radiography. Opportunities for direct computer-aided detection of various lesions may enhance the radiologist's accuracy and improve efficiency. Newer techniques such as dual-energy and temporal subtraction radiography show promise for improved detection of subtle and often obscured or overlooked lung lesions. Digital tomosynthesis is a particularly promising technique that allows reconstruction of multisection images from a short acquisition at very low patient dose. Preliminary data suggest that, compared with conventional radiography, tomosynthesis may also improve detection of subtle lung lesions. The ultimate influence of these new technologies will, of course, depend on the outcome of rigorous scientific validation.

© RSNA, 2006




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