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Radiation Protection Dosimetry Advance Access originally published online on February 3, 2006
Radiation Protection Dosimetry 2005 117(1-3):139-142; doi:10.1093/rpd/nci727
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Dose optimisation in computed radiography

A. Schreiner-Karoussou*

Direction de la Santé, Division de la Radioprotection, Villa Louvigny, L-2120 Luxembourg

* Corresponding author: alexandra.schreiner{at}ms.etat.lu

After the installation of computed radiography (CR) systems in three hospitals in Luxembourg a patient dose survey was carried out for three radiographic examinations, thorax, pelvis and lumbar spine. It was found that the patient doses had changed in comparison with the patient doses measured for conventional radiography in the same three hospitals. A close collaboration between the manufacturers of the X-ray installations, the CR imaging systems and the medical physicists led to the discovery that the speed class with which each radiographic examination was to be performed, had been ignored, during installation of the digital imaging systems. A number of procedures were carried out in order to calibrate and program the X-ray installations in conjunction with the CR systems. Following this optimisation procedure, a new patient dose survey was carried out for the three radiographic examinations. It was found that patient doses for the three hospitals were reduced.


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