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DOI: 10.1148/rg.273065075
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RadioGraphics 2007;27:675-686
© RSNA, 2007

EDUCATION EXHIBIT

Advances in Digital Radiography: Physical Principles and System Overview1

Markus Körner, MD, Christof H. Weber, MD, Stefan Wirth, MD, Klaus-Jürgen Pfeifer, MD, Maximilian F. Reiser, MD, and Marcus Treitl, MD

1 From the Department of Clinical Radiology, University Hospital Munich, Nussbaumstr 20, 80336 Munich, Germany. Presented as an education exhibit at the 2005 RSNA Annual Meeting. Received April 21, 2006; revision requested August 15 and received September 18; accepted September 18. All authors have no financial relationships to disclose. Address correspondence to M.K. (e-mail: markus.koerner{at}med.uni-muenchen.de).

During the past two decades, digital radiography has supplanted screen-film radiography in many radiology departments. Today, manufacturers provide a variety of digital imaging solutions based on various detector and readout technologies. Digital detectors allow implementation of a fully digital picture archiving and communication system, in which images are stored digitally and are available anytime. Image distribution in hospitals can now be achieved electronically by means of web-based technology with no risk of losing images. Other advantages of digital radiography include higher patient throughput, increased dose efficiency, and the greater dynamic range of digital detectors with possible reduction of radiation exposure to the patient. The future of radiography will be digital, and it behooves radiologists to be familiar with the technical principles, image quality criteria, and radiation exposure issues associated with the various digital radiography systems that are currently available.

© RSNA, 2007






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