THE CONCEPT OF X-RAY CT DOSE EVALUATION METHOD USING RADIOCHROMIC FILM AND FILM-FOLDING PHANTOM-Reference-Cited by-同舟云学术

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

Published:2021-01 Issue:2 Volume:193 Page:96-104
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Tanki Nobuyoshi¹²^ORCID,Katsuda Toshizo³,Gotanda Rumi⁴,Gotanda Tatsuhiro⁴,Imai Shinya⁵,Kawaji Yasuyuki⁶,Noguchi Atsushi⁷,Kuwano Tadao⁸,Fujita Hideki⁹,Takeda Yoshihiro¹

Affiliation:

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

2. Brain Activity Imaging Center, ATR-Promotions Inc., 2-2-2 Hikaridai, Sorakugun Seika-cho, Kyoto 619-0288, Japan

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

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

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

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

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

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

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

Abstract

Abstract 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.

Funder

JSPS

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Link

http://academic.oup.com/rpd/article-pdf/193/2/96/37313132/ncab033.pdf

Reference37 articles.

1. Risk of cancer from diagnostic X-rays: estimates for the UK and 14 other countries;González;Lancet,2004

2. Sources and effects of ionizing radiation

3. CT dosimetry: comparison of measurement techniques and devices;Bauhs;Radiographics,2008

4. A new TLD-phantom measurement system for determining dose distribution levels in the right and left breast from spiral CT chest imaging;Hall;J. Appl. Clin. Med. Phys.,2002

5. Evaluation of MVCT imaging dose levels during helical IGRT: comparison between ion chamber, TLD, and EBT3 films;Mege;J. Appl. Clin. Med. Phys.,2016

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