WEKO3
アイテム
{"_buckets": {"deposit": "cf069c82-6c0c-4dd9-80d4-600e4e127eac"}, "_deposit": {"created_by": 1, "id": "47578", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "47578"}, "status": "published"}, "_oai": {"id": "oai:repo.qst.go.jp:00047578", "sets": ["1"]}, "author_link": ["773921", "773920", "773922", "773919", "773915", "773916", "773917", "773918"], "item_8_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2009-04", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "7", "bibliographicPageEnd": "2027", "bibliographicPageStart": "2015", "bibliographicVolumeNumber": "54", "bibliographic_titles": [{"bibliographic_title": "Physics in Medicine and Biology"}]}]}, "item_8_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The pencil-beam algorithm is valid only when elementary Gaussian beams are small enough compared to lateral heterogeneity of a medium, which is not always true in actual radiotherapy with protons and ions. This work addresses a solution for the problem. We found approximate self-similarity of Gaussian distributions, with which Gaussian beams can split into narrower and deflecting daughter beams when their sizes have overreached lateral heterogeneity in beam-transport calculation. The effectiveness was assessed in an carbon-ion beam experiment in the presence of steep range compensation, where the splitting calculation reproduced the detour effect amounting up to about 10% in dose or as large as the lateral particle disequilibrium effect. The efficiency was analyzed in calculations for carbon-ion and proton radiations with a heterogeneous phantom model, where the beam splitting increased computing times by factors of 4.7 and 3.2. The present method generally improves accuracy of the pencil-beam algorithm without severe inefficiency. It will therefore be useful for treatment planning and potentially other demanding applications.", "subitem_description_type": "Abstract"}]}, "item_8_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "IOP Publishing"}]}, "item_8_relation_13": {"attribute_name": "PubMed番号", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "19287085", "subitem_relation_type_select": "PMID"}}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1088/0031-9155/54/7/010", "subitem_relation_type_select": "DOI"}}]}, "item_8_relation_17": {"attribute_name": "関連サイト", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1088/0031-9155/54/7/010", "subitem_relation_type_select": "DOI"}}]}, "item_8_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0031-9155", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Kanematsu, Nobuyuki"}], "nameIdentifiers": [{"nameIdentifier": "773915", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Komori, Masataka"}], "nameIdentifiers": [{"nameIdentifier": "773916", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yonai, Shunsuke"}], "nameIdentifiers": [{"nameIdentifier": "773917", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ishizaki, Azusa"}], "nameIdentifiers": [{"nameIdentifier": "773918", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kanematsu, Nobuyuki", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "773919", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Komori, Masataka", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "773920", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yonai, Shunsuke", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "773921", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ishizaki, Azusa", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "773922", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-06"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "c540e8b7a34d6454c8663fe983a861dc.pdf", "filesize": [{"value": "808.2 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 808200.0, "url": {"label": "text.pdf", "url": "https://repo.qst.go.jp/record/47578/files/c540e8b7a34d6454c8663fe983a861dc.pdf"}, "version_id": "e1cdedcc-53c8-400f-aba9-4c8c93e1540e"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Dynamic splitting of Gaussian pencil beams in heterogeneity-correction algorithms for radiotherapy with heavy charged particles", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Dynamic splitting of Gaussian pencil beams in heterogeneity-correction algorithms for radiotherapy with heavy charged particles"}]}, "item_type_id": "8", "owner": "1", "path": ["1"], "permalink_uri": "https://repo.qst.go.jp/records/47578", "pubdate": {"attribute_name": "公開日", "attribute_value": "2009-02-21"}, "publish_date": "2009-02-21", "publish_status": "0", "recid": "47578", "relation": {}, "relation_version_is_last": true, "title": ["Dynamic splitting of Gaussian pencil beams in heterogeneity-correction algorithms for radiotherapy with heavy charged particles"], "weko_shared_id": -1}
Dynamic splitting of Gaussian pencil beams in heterogeneity-correction algorithms for radiotherapy with heavy charged particles
https://repo.qst.go.jp/records/47578
https://repo.qst.go.jp/records/475781ff73d71-1f1c-4d4e-95ba-c9766e21c363
名前 / ファイル | ライセンス | アクション |
---|---|---|
text.pdf (808.2 kB)
|
|
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2009-02-21 | |||||
タイトル | ||||||
タイトル | Dynamic splitting of Gaussian pencil beams in heterogeneity-correction algorithms for radiotherapy with heavy charged particles | |||||
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 | |||||
著者 |
Kanematsu, Nobuyuki
× Kanematsu, Nobuyuki× Komori, Masataka× Yonai, Shunsuke× Ishizaki, Azusa× Kanematsu, Nobuyuki× Komori, Masataka× Yonai, Shunsuke× Ishizaki, Azusa |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The pencil-beam algorithm is valid only when elementary Gaussian beams are small enough compared to lateral heterogeneity of a medium, which is not always true in actual radiotherapy with protons and ions. This work addresses a solution for the problem. We found approximate self-similarity of Gaussian distributions, with which Gaussian beams can split into narrower and deflecting daughter beams when their sizes have overreached lateral heterogeneity in beam-transport calculation. The effectiveness was assessed in an carbon-ion beam experiment in the presence of steep range compensation, where the splitting calculation reproduced the detour effect amounting up to about 10% in dose or as large as the lateral particle disequilibrium effect. The efficiency was analyzed in calculations for carbon-ion and proton radiations with a heterogeneous phantom model, where the beam splitting increased computing times by factors of 4.7 and 3.2. The present method generally improves accuracy of the pencil-beam algorithm without severe inefficiency. It will therefore be useful for treatment planning and potentially other demanding applications. | |||||
書誌情報 |
Physics in Medicine and Biology 巻 54, 号 7, p. 2015-2027, 発行日 2009-04 |
|||||
出版者 | ||||||
出版者 | IOP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-9155 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 19287085 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/0031-9155/54/7/010 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/0031-9155/54/7/010 |