Size-specific dose estimations for pediatric chest, abdomen/pelvis and head CT scans with the use of GATE.
CT
Computational phantoms
Database
External dosimetry
GATE
Monte Carlo simulations
Organ dose
Patient size
Pediatric
Journal
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
ISSN: 1724-191X
Titre abrégé: Phys Med
Pays: Italy
ID NLM: 9302888
Informations de publication
Date de publication:
Sep 2019
Sep 2019
Historique:
received:
16
05
2019
revised:
24
07
2019
accepted:
29
08
2019
pubmed:
9
9
2019
medline:
7
2
2020
entrez:
9
9
2019
Statut:
ppublish
Résumé
The purpose of this study is to create an organ dose database for pediatric individuals undergoing chest, abdomen/pelvis, and head computed tomography (CT) examinations, and to report the differences in absorbed organ doses, when anatomical differences exist for pediatric patients. The GATE Monte Carlo (MC) toolkit was used to model the GE BrightSpeed Elite CT model. The simulated scanner model was validated with the standard Computed Tomography Dose Index (CTDI) head phantom. Twelve computational models (2.1-14 years old) were used. First, contributions to effective dose and absorbed doses per CTDI The system was validated against experimental CTDI Big differences in absorbed doses are reported even for patients of similar age or same gender, when anatomical differences exist on internal organs of the body.
Identifiants
pubmed: 31494372
pii: S1120-1797(19)30200-5
doi: 10.1016/j.ejmp.2019.08.020
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
181-190Informations de copyright
Copyright © 2019 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.