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Radiation Protection Dosimetry Advance Access originally published online on April 22, 2008
Radiation Protection Dosimetry 2008 129(1-3):316-320; doi:10.1093/rpd/ncn144
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Evaluation of exposure parameters in plain radiography: a comparative study with European guidelines

L. Lança1,*, A. Silva2, E. Alves3, F. Serranheira1 and M. Correia1

1 School of Health Technology, Lisbon Polytechnics, Lisbon, Portugal
2 Department of Electronic, Telecommunications and Informatics, Aveiro University, Aveiro, Portugal
3 Nuclear and Technological Institute, Physics Sector, Lisbon, Portugal

* Corresponding author: luis.lanca{at}estesl.ipl.pt

Typical distribution of exposure parameters in plain radiography is unknown in Portugal. This study aims to identify exposure parameters that are being used in plain radiography in the Lisbon area and to compare the collected data with European references [Commission of European Communities (CEC) guidelines]. The results show that in four examinations (skull, chest, lumbar spine and pelvis), there is a strong tendency of using exposure times above the European recommendation. The X-ray tube potential values (in kV) are below the recommended values from CEC guidelines. This study shows that at a local level (Lisbon region), radiographic practice does not comply with CEC guidelines concerning exposure techniques. Further national/local studies are recommended with the objective to improve exposure optimisation and technical procedures in plain radiography. This study also suggests the need to establish national/local diagnostic reference levels and to proceed to effective measurements for exposure optimisation.


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