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Digital chest radiography image quality assessment with dose reduction

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Australasian Physical & Engineering Sciences in Medicine Aims and scope Submit manuscript

Abstract

A retrospective study of digital chest radiography was performed to compare the image quality and dose parameters from two X-ray rooms in different areas of the same hospital using identical X-ray units but different local protocol for obtaining chest PA and lateral radiographs. Image quality of radiographs was assessed from the printed films using well established European guidelines and modified criteria. Patient entrance surface air kerma was calculated using technical data recorded for each radiograph and measured output of the X-ray unit. Effective dose and dose to radiosensitive organs was estimated using dose calculation software PCXMC. There was no statistical significant difference in the evaluated image quality using either technique, median entrance surface air kerma to the patient reduced significantly with added filtration technique and use of normal density setting. Phantom measurements indicated that an additional filtration of 0.1 mm Cu + 1 mm Al in the X-ray beam alone reduced the entrance surface air kerma by 35%.

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Acknowledgments

The authors would like to thank the radiographers for their help in collecting patients scan data. We would also like to thank our statistician, Karen Byth for helping in statistical analysis. In addition, the authors thank Dr. Don McLean for reading the manuscript and providing comments.

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Authors and Affiliations

  1. Department of Medical Physics, Westmead Hospital, P.O. Box 533, Westmead, Wentworthville, NSW, 2145, Australia

    R. K. Grewal & L. Collins

  2. Department of Radiology, Westmead Hospital, Westmead, Australia

    N. Young, N. Karunaratne & R. Sabharwal

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  1. R. K. Grewal
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  2. N. Young
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  3. L. Collins
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  4. N. Karunaratne
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Corresponding author

Correspondence to R. K. Grewal.

Additional information

Poster presented in part at RANZCR 2010, the 61st annual scientific meeting of the Royal Australasian and New Zealand College of Radiologists (RANZCR), Perth, Western Australia, 14–17 October 2010.

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Grewal, R.K., Young, N., Collins, L. et al. Digital chest radiography image quality assessment with dose reduction. Australas Phys Eng Sci Med 35, 71–80 (2012). https://doi.org/10.1007/s13246-012-0125-5

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  • DOI: https://doi.org/10.1007/s13246-012-0125-5

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