Patient doses in CT examinations in Switzerland: implementation of national diagnostic reference levels.

Details

Ressource 1Download: serval:BIB_EFE39B500CE9.P001 (281.79 [Ko])
State: Public
Version: author
License: Not specified
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
Serval ID
serval:BIB_EFE39B500CE9
Type
Article: article from journal or magazin.
Collection
Publications
Title
Patient doses in CT examinations in Switzerland: implementation of national diagnostic reference levels.
Journal
Radiation Protection Dosimetry
Author(s)
Treier R., Aroua A., Verdun F.R., Samara E., Stuessi A., Trueb P.R.
ISSN
1742-3406 (Electronic)
ISSN-L
0144-8420
Publication state
Published
Issued date
2010
Volume
142
Number
2-4
Pages
244-254
Language
english
Abstract
Diagnostic reference levels (DRLs) were established for 21 indication-based CT examinations for adults in Switzerland. One hundred and seventy-nine of 225 computed tomography (CT) scanners operated in hospitals and private radiology institutes were audited on-site and patient doses were collected. For each CT scanner, a correction factor was calculated expressing the deviation of the measured weighted computed tomography dose index (CTDI) to the nominal weighted CTDI as displayed on the workstation. Patient doses were corrected by this factor providing a realistic basis for establishing national DRLs. Results showed large variations in doses between different radiology departments in Switzerland, especially for examinations of the petrous bone, pelvis, lower limbs and heart. This indicates that the concept of DRLs has not yet been correctly applied for CT examinations in clinical routine. A close collaboration of all stakeholders is mandatory to assure an effective radiation protection of patients. On-site audits will be intensified to further establish the concept of DRLs in Switzerland.
Pubmed
Web of science
Open Access
Yes
Create date
22/03/2011 13:08
Last modification date
01/10/2019 7:20
Usage data