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  1. C100 医学部/医学系研究科
  2. C100b 紀要
  3. Nagoya journal of medical science
  4. 77(3)

Evaluation of the field-in-field technique with lung blocks for breast tangential radiotherapy

https://doi.org/10.18999/nagjms.77.3.339
https://doi.org/10.18999/nagjms.77.3.339
b5d88755-bae5-4d52-ad1e-820abb613b38
名前 / ファイル ライセンス アクション
12_Tanaka.pdf 12_Tanaka.pdf (315.2 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2015-09-04
タイトル
タイトル Evaluation of the field-in-field technique with lung blocks for breast tangential radiotherapy
著者 Tanaka, Hidekazu

× Tanaka, Hidekazu

WEKO 60297

Tanaka, Hidekazu

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Hayashi, Shinya

× Hayashi, Shinya

WEKO 60298

Hayashi, Shinya

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Kajiura, Yuichi

× Kajiura, Yuichi

WEKO 60299

Kajiura, Yuichi

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Kitahara, Masashi

× Kitahara, Masashi

WEKO 60300

Kitahara, Masashi

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Matsuyama, Katsuya

× Matsuyama, Katsuya

WEKO 60301

Matsuyama, Katsuya

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Kanematsu, Masayuki

× Kanematsu, Masayuki

WEKO 60302

Kanematsu, Masayuki

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Hoshi, Hiroaki

× Hoshi, Hiroaki

WEKO 60303

Hoshi, Hiroaki

Search repository
キーワード
主題Scheme Other
主題 breast cancer
キーワード
主題Scheme Other
主題 breast-conserving surgery
キーワード
主題Scheme Other
主題 breast radiotherapy
キーワード
主題Scheme Other
主題 field-in-field technique
キーワード
主題Scheme Other
主題 lung blocks
抄録
内容記述 Several studies have reported the advantages of the field-in-field (FIF) technique in breast radiotherapy, including dose reduction in the lungs by using lung field blocks. We evaluated the FIF technique with lung blocks for breast tangential radiotherapy. Sixteen patients underwent free breathing (FB) computed tomography (CT), followed by two CT procedures performed during breath hold after light inhalation (IN) and light exhalation (EX). Three radiotherapy plans were created using the FIF technique based on the FB-CT images: one without lung blocks (LB0) and two with lung blocks whose monitor units (MUs) were 5 (LB5) and 10 (LB10), respectively. These plans were copied to the IN-CT and EX-CT images. V20Gy, V30Gy, and V40Gy of the ipsilateral lung and V100%, V95%, and the mean dose (Dmean) to the planning target volume (PTV) were analyzed. The extent of changes in these parameters on the IN-plan and EX-plan compared with the FB-plan was evaluated. V20Gy, V30Gy, and V40Gy were significantly smaller for FB-LB5 and FB-LB10 than for FB-LB0; similar results were obtained for the IN-plan and EX-plan. V100%, V95%, and Dmean were also significant smaller for FB-LB5 and FB-LB10 than for FB-LB0. The extent of changes in V20Gy, V30Gy, and V40Gy on the IN-plan and EX-plan compared with the FB-plan was not statistically significant. Lung blocks were useful for dose reduction in the lung and a simultaneous PTV decrease. This technique should not be applied in the general population.
内容記述タイプ Abstract
出版者
出版者 Nagoya University Graduate School of Medicine, School of Medicine
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.18999/nagjms.77.3.339
ID登録タイプ JaLC
ISSN(print)
収録物識別子タイプ ISSN
収録物識別子 0027-7622
書誌情報 Nagoya Journal of Medical Science

巻 77, 号 3, p. 339-345, 発行日 2015-08
著者版フラグ
値 publisher
URI
識別子 http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/773.html
識別子タイプ URI
URI
識別子 http://hdl.handle.net/2237/22974
識別子タイプ HDL
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