Image Quality and Dose

Aichinger, Horst; Dierker, Joachim; Joite-Barfuß, Sigrid; Säbel, Manfred

doi:10.1007/978-3-662-09654-3_8

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…Due to the wide exposure latitude and post processing capabilities associated with DR,5 resultant images will have similar appearances in terms of contrast and density when compared to film-screen technologies independent of the exposure, however, if images are underexposed increased quantum mottle will be evident in the image 6. DR technologies have been described as having the potential to reduce patient radiation dose,7,8 however, due to their large dynamic range inadvertent overexposure is possible,9 since underexposure rather than overexposure is more likely to affect image quality 10,11. Dose creep or dose drift are terms used to describe unintended overexposure to the patient,11 following the introduction of digital imaging technologies 12.…”

Section: Introductionmentioning

confidence: 99%

Digital radiography exposure indices: A review

Mothiram

Brennan

Lewis

et al. 2014

J of Medical Radiation Sci

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Digital radiography (DR) technologies have the advantage of a wide dynamic range compared to their film-screen predecessors, however, this poses a potential for increased patient exposure if left unchecked. Manufacturers have developed the exposure index (EI) to counter this, which provides radiographers with feedback on the exposure reaching the detector. As these EIs were manufacturer-specific, a wide variety of EIs existed. To offset this, the international standardised EI has been developed by the International Electrotechnical Commission (IEC) and the American Association of Physicists in Medicine (AAPM). The purpose of this article is to explore the current literature relating to EIs, beginning with the historical development of the EI, the development of the standardised EI and an exploration of common themes and studies as evidenced in the research literature. It is anticipated that this review will provide radiographers with a useful guide to understanding EIs, their application in clinical practice, limitations and suggestions for further research.

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