COMPARISON OF EXPERIMENTAL AND NUMERICAL METHODS OF PATIENT DOSE ESTIMATIONS IN CT USING ANTHROPOMORPHIC MODELS.
Journal
Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958
Informations de publication
Date de publication:
03 Aug 2020
03 Aug 2020
Historique:
received:
20
02
2020
revised:
20
02
2020
accepted:
05
04
2020
entrez:
4
8
2020
pubmed:
4
8
2020
medline:
24
6
2021
Statut:
ppublish
Résumé
The common methods for patient dose estimations in computed tomography (CT) are thermoluminescence dosemeter (TLD) measurements or the usage of software packages based on Monte Carlo simulations like CT-Expo or the newer CTVoxDos, which uses the ICRP Reference Adult Male (ICRP 110). Organ (OD) and effective doses of a CT protocol of the upper abdomen are compared. Compared to CTVoxDos, ODs inferred by TLD measurement using an anthropomorphic phantom differ by $\mathbf{(19\pm 16)\,\%}$ inside the primary radiation field, $\mathbf{(14\pm 2)\,\%}$ for partially primary irradiated organs and $\mathbf{(34\pm 38)\,\%}$ in the scattered radiation field. ODs estimated by CT-Expo show a mean deviation of $\mathbf{(16\pm 9)\,\%}$ (primary irradiated) and $\mathbf{(28\pm 31)\,\%}$ (scatter irradiated) from ODs estimated by CTVoxDos.
Identifiants
pubmed: 32744624
pii: 5858445
doi: 10.1093/raddos/ncaa070
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
71-83Informations de copyright
© The authors 2020. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.