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Radiation Protection Dosimetry Advance Access originally published online on February 3, 2006
Radiation Protection Dosimetry 2005 117(1-3):143-147; doi:10.1093/rpd/nci728
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Image quality and dose management in digital radiography: a new paradigm for optimisation

H. P. Busch1 and K. Faulkner2,*

1 Department of Radiology, Krankenhaus der Barmherzigen Brudder, Nordalle, Trier, Germany
2 Quality Assurance Reference Centre, Unit 9, Kingfisher Way, Silverlink Business Park, Wallsend, Tyne and Wear NE28 9ND, UK

* Corresponding author: keith.faulkner{at}nhs.net

The advent of digital imaging in radiology, combined with the explosive growth of technology, has dramatically improved imaging techniques. This has led to the expansion of diagnostic capabilities, both in terms of the number of procedures and their scope. Throughout the world, film/screen radiography systems are being rapidly replaced with digital systems. Many progressive medical institutions have acquired, or are considering the purchase of computed radiography systems with strorage phosphor plates or direct digital radiography systems with flat panel detectors. However, unknown to some users, these devices offer a new paradigm of opportunity and challenges. Images can be obtained at a lower dose owing to the higher detective quantum efficiency (DQE). These fundamental differences in comparison to conventional film/screens necessitate the development of new strategies for dose and quality optimisations. A set of referral criteria based upon three dose levels is proposed.


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