書誌事項
- タイトル別名
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- Study of Setup Margins in Radiation Therapy: How Many Verification Times and Patients are Required
- ホウシャセン チリョウ ニ オケル セットアップマージン ニ カンスル ケントウ ドレダケ ノ ショウゴウスウ ト カンジャスウ ガ ヒツヨウ カ
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Introduction: The purpose of this research is to require suitable numbers of verification times and patients for calculating the setup margin (SM) in radiotherapy. Methods: 1) This simulation was performed using the standard normal distribution random number. The simulation used the seven levels of verification from 5 to 35 in 5 steps, and 35 patients. 2) The setup error in prostate radiotherapy at three hospitals was analyzed. Systematic error and random error were calculated from each patient’s average value and standard deviation. Furthermore, we used the formula of J Stroom to calculate SM. Suitable numbers of verification times and patients were obtained from statistical analysis of the simulated results. Results: 1) In the results of our simulations using random number, SM converged on 1.0 to 1.3 mm, regardless of the number of patients, when there were more than 15 verification times; 2) The results of clinical data were slightly different from the standard normal distribution, and more than 15 verification times and over 15 patients were required. Conclusions: In conclusion, calculation of the SM in radiotherapy required more than 15 verification times and over 15 patients.
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 66 (9), 1186-1196, 2010
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
- 1390001206361458304
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- NII論文ID
- 10026649009
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- NII書誌ID
- AN00197784
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- COI
- 1:STN:280:DC%2BC3cbitFCgsg%3D%3D
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 10856637
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- PubMed
- 20975239
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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