書誌事項
- タイトル別名
-
- Mechanical Accuracy of a Stereotactic Irradiation System Using a Micro Multi-leaf Collimator
- マイクロマルチリーフコリメータ オ モチイタ テイイ ホウシャセン ショウシャ システム ノ キカイテキ セイド ヒョウカ
この論文をさがす
説明
Mechanical accuracy of a stereotactic irradiation system using a micro multi-leaf collimator (mMLC), Elekta DMLC, has been evaluated. Measurements were made to obtain transmission, leakage, penumbra, and positioning accuracy of the DMLC leaf for a 6 MV photon beam. Mechanical accuracy and long term stability of a linac isocenter was also evaluated. The resulting transmission, along a line perpendicular to the leaf movement, was 0.31±0.01%, and the leakage from the closed opposing leaf pairs was 0.39±0.01%. The measured penumbra, at a depth incurring maximum dose, was 2.37±0.16 mm toward the leaf end and 2.14±0.18 mm toward the leaf side for various field sizes. The leaf gap width error, of 0.10±0.08 mm, was obtained by analyzing picket fence test results. The maximum leaf positioning error, of 0.14±0.06 mm, was obtained by analyzing the log file for a various gantry angles during an arc delivery. The isocenter accuracy was within a radius of 1 mm, without any recalibration for two years. In conclusion, our stereotactic irradiation system using DMLC was capable of providing accurate stereotactic treatment.
収録刊行物
-
- 日本放射線技術学会雑誌
-
日本放射線技術学会雑誌 67 (10), 1267-1274, 2011
公益社団法人 日本放射線技術学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001206362153600
-
- NII論文ID
- 10030042119
-
- NII書誌ID
- AN00197784
-
- COI
- 1:STN:280:DC%2BC3MbktVejtA%3D%3D
-
- ISSN
- 18814883
- 03694305
-
- NDL書誌ID
- 023245794
-
- PubMed
- 22026979
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可
