THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD USING RADIOCHROMIC FILM AND FILM-FOLDING PHANTOM.

Film Dosimetry Monte Carlo Method Phantoms, Imaging Tomography, X-Ray Computed X-Ray Film X-Rays

Journal

Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958

Informations de publication

Date de publication:
29 Jan 2021
Historique:
received: 06 08 2020
revised: 22 11 2020
accepted: 15 02 2021
pubmed: 1 4 2021
medline: 24 6 2021
entrez: 31 3 2021
Statut: ppublish

Résumé

In this paper, we propose a novel radiochromic film (RCF)-based computed tomography (CT) dosimetry method, which is different from the method based on CT dose index. RCF dosimetry using Gafchromic QA2 films was performed using two lengths of film-folding phantoms. The phantom was exposed to X-ray CT through a single scan, while the RCF was sandwiched between the phantoms. We analysed the dose profile curve in two directions to investigate the dose distribution. We observed a difference in the dose distribution as the phantom size changed. Our results contradict with the results of previous studies such as Monte Carlo simulation or direct measurement. The ability to visually evaluate 2D dose distributions is an advantage of RCF dosimetry over other methods. This research investigated the ability of 2D X-ray CT dose evaluation using RCF and film-folding phantom.

Identifiants

DOI: 10.1093/rpd/ncab033 PMID: 33786601
pubmed: 33786601
pii: 6204790
doi: 10.1093/rpd/ncab033
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

96-104

Informations de copyright

© The Author(s) 2021. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Auteurs

Nobuyoshi Tanki (N)

Department of Radiological Technology, Graduate School of Health Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
Brain Activity Imaging Center, ATR-Promotions Inc., 2-2-2 Hikaridai, Sorakugun Seika-cho, Kyoto 619-0288, Japan.

Toshizo Katsuda (T)

Department of Medical Radiation Sciences, Shizuoka College of Medicalcare Science, 2000 Hiraguchi, Hamakita-ku, Hamamatsu, 434-0041 Shizuoka, Japan.

Rumi Gotanda (R)

Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki, 701-0193 Okayama, Japan.

Tatsuhiro Gotanda (T)

Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki, 701-0193 Okayama, Japan.

Shinya Imai (S)

Department of Radiological Science, Faculty of Health Science, Morinomiya University of Medical Sciences, 1-26-16 Nankou-kita, Suminoe-ku, 559-8611 Osaka, Japan.

Yasuyuki Kawaji (Y)

Department of Radiological Science, Faculty of Health Sciences, Junshin Gakuen University, 1-1-1 Chikushioka, Minami-ku, 815-8510 Fukuoka, Japan.

Atsushi Noguchi (A)

Aoi Hospital, Medical Incorporated Association Seishokai, 6-14-2 Aramaki, Itami, 664-0001 Hyogo, Japan.

Tadao Kuwano (T)

Osaka Center for Cancer and Cardiovasucular Disease Prevention, 1-6-107 Morinomiya, Joutou-ku, 536-8588 Osaka, Japan.

Hideki Fujita (H)

Department of Radiation Oncology, Osaka Saiseikai Nakatsu Hospital, 2-10-39 Shibata, Kita-ku 530-0012 Osaka, Japan.

Yoshihiro Takeda (Y)

Department of Radiological Technology, Graduate School of Health Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.

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Classifications MeSH

questionsmedicales.fr › Environnement et santé publique › Santé publique › Hygiène radiologique › Contrôle des radiations › Dosimétrie photographique › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Statistiques comme sujet › Méthode de Monte Carlo › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...
questionsmedicales.fr › Équipement et fournitures › Fantômes en imagerie › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...
questionsmedicales.fr › Diagnostic › Techniques et procédures diagnostiques › Imagerie diagnostique › Tomographie › Tomographie à rayons X › Tomodensitométrie › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...
questionsmedicales.fr › Équipement et fournitures › Film radiographique › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...
questionsmedicales.fr › Phénomènes physiques › Rayonnement › Rayonnement ionisant › Rayons X › THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD...