書誌事項
- タイトル別名
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- Influence of Changing Respirator Pattern on Dynamic Tumor Tracking Accuracy with Gimbaled Linac System Using a Digital Camera
- 臨床技術 ディジタルカメラを用いた呼吸波形の変化による動体追尾照射精度の検証
- リンショウ ギジュツ ディジタルカメラ オ モチイタ コキュウ ハケイ ノ ヘンカ ニ ヨル ドウタイ ツイビ ショウシャ セイド ノ ケンショウ
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抄録
<p>It is important for high-precision radiation therapy that tracking accuracy in dynamic tumor tracking (DTT) using the gimbal X-ray head. We evaluated the tracking accuracy under various respiratory patterns differ from a correlation model [four-dimensional model (4D-model)] in real-time using a digital camera. A sheet of paper with luminous line was placed on the programmable respiratory motion table (CIRS Inc.) and operated with the laser projector. The luminous line was defined as a target and the laser was defined as a gimbal. Motion table was operated at a period of 4 s and amplitude of ±10 mm to create 4D-modeling. This movement was defined as the basic operation. To investigate the tracking accuracy, target and gimbal positions were recorded using a digital camera under amplitudes (±5–20 mm) and periods (2–8 s) and analyzed by ImageJ software (NIH). The maximum tracking errors under various period and amplitude were 1.7–0.9 mm and 0.4–1.9 mm, respectively. From the creation of 4D-modeling, it was confirmed that when the period has shortened and the amplitude has increased, tracking accuracy was reduced.</p>
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 74 (3), 262-269, 2018
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
- 1390282681366639360
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- NII論文ID
- 130006515933
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 028934071
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- PubMed
- 29563395
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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