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Effective and organ doses in helical 4DCT for thoracic and abdominal therapies
https://repo.qst.go.jp/records/48429
https://repo.qst.go.jp/records/48429914c4c36-9f14-4898-8c73-f46e8c560140
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-01-11 | |||||
タイトル | ||||||
タイトル | Effective and organ doses in helical 4DCT for thoracic and abdominal therapies | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Matsuzaki, Yuka
× Matsuzaki, Yuka× Fujii, Keisuke× Kumagai, Motoki× Tsuruoka, Ichirou× Mori, Shinichiro× 松崎 有華× 藤井 啓輔× 熊谷 始紀× 鶴岡 伊知郎× 森 慎一郎 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The capacity of 4DCT to quantify organ motion is beyond conventional 3DCT capability. Local control could be improved. However we are unaware of any reports of organ dose measurements for helical 4DCT imaging. We therefore quantified the radiation doses for helical 4DCT imaging. Organ and tissue dose was measured for thoracic and abdominal 4DCT in helical mode using an adult anthropomorphic phantom. Radiation doses were measured with thermoluminescence dosimeter chips inserted at various anatomical sites on the phantom. For the helical thoracic 4DCT, organ doses were 57.2 mGy for the lung, 76.7 mGy for the thyroids, 48.1 mGy for the breasts, and 10.86 mGy for the colon. The effective doses for male and female phantoms were very similar, with a mean value of 33.1 mSv. For abdominal 4DCT imaging, organ doses were 14.4 mGy for the lung, 0.78 mGy for the thyroids, 9.83 mGy for breasts, and 58.2 mGy for the colon (all obtained by using ICRP 103). We quantified the radiation exposure for thoracic and abdominal helical 4DCT. The doses for helical 4DCT were approximately 1.5 times higher than those for cine 4DCT, however the stepwise image artifact was reduced. 4DCT imaging should be performed with care in order to minimize radiation exposure, but the advantages of 4DCT imaging mandates its incorporation into routine treatment protocols. | |||||
書誌情報 |
Journal of Radiation Research 巻 54, p. 962-970, 発行日 2013-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0449-3060 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/jrr/rrt024 |