Image Quality and Dose

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

doi:10.1007/978-3-642-11241-6_9

Cited by 7 publications

(6 citation statements)

References 31 publications

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“… 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 This increase is driven, at least in part by a desire to reduce quantum mottle as radiologists tend to express concern about underexposed images.…”

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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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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“…9.7 and Gajewski et al 1974;Aichinger et al 1994;S€ abel et al 1996;Bernhardt et al 2006 andWilliams et al 2008) by calculating this quantity, e.g. with the assumption of mono-energetic X-radiation as a theoretical ideal.…”

Section: Mammographymentioning

confidence: 98%

“…In mammography the possibility of adapting radiation quality to object thickness by selection of the tube voltage alone is very limited together with the conventional molybdenum anode-molybdenum filter system (Gajewski and Reiss 1974;Jennings et al 1981;Beaman et al 1982;Aichinger et al 1994;S€ abel and Aichinger 1996). The relative energy distribution of the X-ray photons (i.e.…”

Section: Mammographymentioning

confidence: 99%

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Optimisation of Image Quality and Dose

Aichinger¹,

Dierker²,

Joite-Barfuß³

et al. 2011

Radiation Exposure and Image Quality in X-Ray Diagnostic Radiology

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“…The image quality factor (IQF) is a measure of the image quality with respect to the dose, given by equation (4) where D is the dose [17]. (4) 3.…”

Section: Contrast and Signal To Noise Ratio (Snr)mentioning

confidence: 99%

A novel approach to scatter-free imaging for the improvement of breast cancer Detection

et al. 2014

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Compton scattering is one of the main causes of image degradation in X-ray imaging. This is particularly noticeable in mammography where details of interest feature low contrast in comparison to the surrounding tissue. This work shows the feasibility of obtaining scatter-free images by using a quasimonochromatic X-ray beam and a pixellated spectroscopic detector. This work presents characterisation of the imaging system and quantitative imaging data of a low contrast test object. An improvement in contrast by 8% was observed compared to images obtained including scattered radiation. Comparison with a conventional setup showed an increase in the image quality factor when scatter has been removed.

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Image Quality and Dose

Cited by 7 publications

References 31 publications

Digital radiography exposure indices: A review

Digital radiography exposure indices: A review

Optimisation of Image Quality and Dose

A novel approach to scatter-free imaging for the improvement of breast cancer Detection

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