Derivation of new diagnostic reference levels for neuro-paediatric computed tomography examinations in Switzerland.

Details

Ressource 1Download: 29786616_cover.pdf (1577.16 [Ko])
State: Public
Version: Author's accepted manuscript
License: CC BY-NC-ND 4.0
Serval ID
serval:BIB_78B50D3B4C11
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Derivation of new diagnostic reference levels for neuro-paediatric computed tomography examinations in Switzerland.
Journal
Journal of radiological protection
Author(s)
Wagner F., Bize J., Racine D., Le Coultre R., Verdun F., Trueb P.R., Treier R.
ISSN
1361-6498 (Electronic)
ISSN-L
0952-4746
Publication state
Published
Issued date
09/2018
Peer-reviewed
Oui
Volume
38
Number
3
Pages
1013-1036
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Definition of new national diagnostic reference levels (DRLs) for volume computed tomography dose index (CTDI <sub>vol</sub> ) and dose length product (DLP) for neuro-paediatric CT examinations depending on the medical indication.
Paediatric cranial CT data sets acquired between January 2013 and December 2016 were retrospectively collected between July 2016 and March 2017 from eight of the largest university and cantonal hospitals that perform most of the neuro-paediatric CTs in Switzerland. A consensus review of CTDI <sub>vol</sub> and DLP was undertaken for three defined anatomical regions: brain, facial bone, and petrous bone, each with and without contrast medium application. All indications for cranial CT imaging in paediatrics were assigned to one of these three regions. Descriptive statistical analysis of the distribution of the median values for CTDI <sub>vol</sub> and DLP yielded values in the minimum, maximum, 25th percentile (1st quartile), median (2nd quartile), and 75th percentile (3rd quartile). New DRLs for neuro-paediatric CT examinations in Switzerland were based on the 75th percentiles of the distributions of the median values of all eight centres. Where appropriate, values were rounded such that the DRLs increase or at least remain constant as the age of the patient increases.
Our results revealed DRLs for CTDI <sub>vol</sub> and DLP up to 20% lower than the DRLs used so far in Switzerland and elsewhere in Europe.
This study provides Swiss neuro-paediatric CT DRL values to establish optimum conditions for paediatric cranial CT examinations. Periodic national updates of DRLs, following international comparisons, are essential.
Keywords
CT, CTDIvol, DLP, DRL, neuro-paediatrics, radiation monitoring, radiation protection
Pubmed
Web of science
Open Access
Yes
Create date
24/05/2018 16:44
Last modification date
20/08/2019 14:35
Usage data