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Optimum Gating Window for Gated Carbon-ion Beam Liver Treatment Planning using 4DCT Data
https://repo.qst.go.jp/records/64333
https://repo.qst.go.jp/records/643333434403a-f6c5-483c-b4c7-8d161541f59d
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2011-10-03 | |||||
タイトル | ||||||
タイトル | Optimum Gating Window for Gated Carbon-ion Beam Liver Treatment Planning using 4DCT Data | |||||
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_c94f | |||||
資源タイプ | conference object | |||||
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 |
Kumagai, Motoki
× Kumagai, Motoki× Mori, Shinichiro× Imada, Hiroshi× Kandatsu, Susumu× Yasuda, Shigeo× 熊谷 始紀× 森 慎一郎× 今田 浩史× 神立 進× 安田 茂雄 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | One of the important factors in liver radiotherapy is considering the intrafractional movement, especially in carbon-ion beam treatment, because respiratory induced liver motion is relative larger than other thoracic and abdominal sites. As a result, particle range variation could be expected significant large due to density variation by replacing lung and liver densities. We, therefore, evaluated the intrafractional carbon ion dose variation using a 4DCT data set. Patients with liver cancer were subject to the 4DCT examination under free-breathing conditions. Planning target volume (PTV) were defined by adding internal margin of 1.0 ~ 1.2 cm to GTV. Compensating bolus was designed for the PTV at peak-exhalation phase. Carbon ion dose distributions were calculated by applying the compensating bolus to the 4DCT data set. We assessed 4D dose volume histograms (4D-DVH) by using deformable registration. | |||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 6th Japan-Korea Joint Meeting on Medical Physics (JKMP) and 11th Asia-Oceania Congress of Medical Physics (AOCMP) | |||||
発表年月日 | ||||||
日付 | 2011-10-01 | |||||
日付タイプ | Issued |