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

Détails

ID Serval
serval:BIB_EFE39B500CE9
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Patient doses in CT examinations in Switzerland: implementation of national diagnostic reference levels.
Périodique
Radiation Protection Dosimetry
Auteur(s)
Treier R., Aroua A., Verdun F.R., Samara E., Stuessi A., Trueb P.R.
ISSN
1742-3406 (Electronic)
ISSN-L
0144-8420
Statut éditorial
Publié
Date de publication
2010
Volume
142
Numéro
2-4
Pages
244-254
Langue
anglais
Résumé
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
Création de la notice
22/03/2011 13:08
Dernière modification de la notice
03/03/2018 22:35
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