The establishment of computed tomography diagnostic reference levels in Portugal

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Title: The establishment of computed tomography diagnostic reference levels in Portugal
Authors: Santos, Joana
Foley, Shane J.
Paulo, Graciano
McEntee, Mark F.
Rainford, Louise A.
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Date: Sep-2013
Online since: 2016-02-11T14:29:46Z
Abstract: The aims of this study were to investigate the frequency of Portuguese computed tomography (CT) examinations, identify protocol application and establish diagnostic reference levels (DRLs). CT departments (n=211) were surveyed nationally (June 2011–January 2012) and CT protocol information and dose data were collected, as were retrospective age-categorised paediatric CT data from three national paediatric centres. The proposed national CT DRLs (CTDIvol) for adults were 75, 18, 14, 18, 17, 36, 22, 27 and 16 mGy for head, neck, chest, abdomen, pelvis, cervical, dorsal, lumbar and joints, respectively. The levels for paediatric head and chest examinations were as follows: 48 and 2 mGy (newborns), 50 and 6 mGy (5 y olds), 70 and 6 mGy (10 y olds) and 72 and 7 mGy (15 y olds). A limited number of current paediatric protocols aligned to recommended international age categorisations. Portuguese DRLs were generally higher than European recommendations, suggesting potential for optimisation. The need for greater standardisation of age-categorised paediatric protocols was identified.
Type of material: Journal Article
Publisher: Oxford University Press
Journal: Radiation Protection Dosimetry
Volume: 158
Issue: 3
Start page: 307
End page: 317
Copyright (published version): 2013 the Authors
Keywords: Computed tomography (CT)Radiation dosageRadiation protection
DOI: 10.1093/rpd/nct226
Language: en
Status of Item: Peer reviewed
Appears in Collections:Medicine Research Collection

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