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Comparison of experimental and numerical methods of patient dose estimations in CT using anthropomorphic models.
Radiat. Prot. Dosim. 190, 71-83 (2020)
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 (19 +/- 16)% inside the primary radiation field, (14 +/- 2)% for partially primary irradiated organs and (34 +/- 38)% in the scattered radiation field. ODs estimated by CT-Expo show a mean deviation of (16 +/- 9)% (primary irradiated) and (28 +/- 31)% (scatter irradiated) from ODs estimated by CTVoxDos.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Conversion Coefficients; Adult Male; Phantoms; Program; Female
ISSN (print) / ISBN
0144-8420
e-ISSN
1742-3406
Journal
Radiation Protection Dosimetry
Quellenangaben
Volume: 190,
Issue: 1,
Pages: 71-83
Publisher
Oxford University Press
Publishing Place
Oxford
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Medicine (IRM)