書誌事項
- タイトル別名
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- Electronic Portal Image Device Dosimetry for Volumetric Modulated Arc Therapy
- VMAT ニ オケル EPID Dosimetry ノ ケントウ
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抄録
Recently electronic portal image devices (EPIDs) have been widely used for quality assurance and dose verification. However there are no reports describing EPID dosimetry for Elekta volumetric modulated arc therapy (VMAT). We have investigated EPID dosimetry during VMAT delivery using a commercial software EPIDose with an Elekta Synergy linac. Dose rate dependence and the linac system sag during gantry rotation were measured. Gamma indices were calculated between measured doses using an EPID and calculation made by a treatment planning system for prostate VMAT test plans. The results were also compared to gamma indices using films and a two-dimensional detector array, MapCHECK2. The pass rates of the gamma analysis with a criterion of 3% and 2 mm for the three methods were over 96% with good consistency. Our results have showed that EPID dosimetry is feasible for Elekta VMAT.
収録刊行物
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- 日本放射線技術学会雑誌
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日本放射線技術学会雑誌 69 (1), 11-18, 2013
公益社団法人 日本放射線技術学会
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詳細情報 詳細情報について
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- CRID
- 1390001206361095168
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- NII論文ID
- 10031139904
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- NII書誌ID
- AN00197784
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- COI
- 1:STN:280:DC%2BC3szjt1yltQ%3D%3D
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 024270063
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- PubMed
- 23358333
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可