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中心型肺癌に対する炭素イオン線治療における3次元治療計画の研究
https://repo.qst.go.jp/records/64240
https://repo.qst.go.jp/records/64240475b213c-b6ff-428c-8e77-086d3f015656
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-03-14 | |||||
| タイトル | ||||||
| タイトル | 中心型肺癌に対する炭素イオン線治療における3次元治療計画の研究 | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 |
馬場, 雅行
× 馬場, 雅行× 蓑原, 伸一× 土橋, 卓× 森, 慎一郎× 熊谷, 始紀× 稲庭, 拓× 中嶋, 美緒× 山本, 直敬× 須金, 紀雄× 神立, 進× 馬場 雅行× 蓑原 伸一× 土橋 卓× 森 慎一郎× 熊谷 始紀× 稲庭 拓× 中嶋 美緒× 山本 直敬× 須金 紀雄× 神立 進 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To study the range of intrafractional lung tumor motion and evaluate how much they were reduced in the use of immobilization, 10 patients of lung cancer fixed by an immobilization device underwent four-dimensional computed tomography (4DCT) for one cycle of respiration in free-breathing condition. The respiratory period was subdivided into 10 phases and intrafractional tumor motions were evaluated by identifying the center of mass of gross tumor volume (GTV) for each respiratory phase. The mean ranges of the tumor motion over 10 patients were 1.4 mm, 2.2 mm and 6.6 mm in left-right (LR), anterior-posterior (AP) and superior-inferior (SI) directions, respectively. A previous work which studied the lung tumor motion for freely breathing patients without immobilization by using 4DCT have reported that the movement averaged 1.9mm, 4.0mm and 10.3 mm in LR, AP and SI-directions, respectively. The immobilization reduces the range of the lung tumor motion by 0.5mm, 1.8mm and 3.7mm in each direction. This result shows that immobilization is effective not only for fixing patients to a couch, but also for reducing intrafractional tumor motion. |
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| 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 | H20年度HIMAC共同利用研究成果発表会 | |||||
| 発表年月日 | ||||||
| 日付 | 2009-04-13 | |||||
| 日付タイプ | Issued | |||||
