書誌事項
- タイトル別名
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- Evaluation of the Positional Accuracy and Dosimetric Properties of a Three-dimensional Printed Device for Head and Neck Immobilization
- 臨床技術 3Dプリンタで作製した頭頚部放射線治療補助固定具の検討 : 従来固定具との固定精度および線量特性比較調査
- リンショウ ギジュツ 3Dプリンタ デ サクセイ シタ アタマ ケイブ ホウシャセン チリョウ ホジョ コテイグ ノ ケントウ : ジュウライ コテイグ ト ノ コテイ セイド オヨビ センリョウ トクセイ ヒカク チョウサ
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抄録
<p>Our aim was to investigate the feasibility of a three-dimensional (3D) -printed head-and-neck (HN) immobilization device by comparing its positional accuracy and dosimetric properties with those of a conventional immobilization device (CID). We prepared a 3D-printed immobilization device (3DID) consisting of a mask and headrest with acrylonitrile-butadiene-styrene resin developed from the computed tomography data obtained by imaging a HN phantom. For comparison, a CID comprising a thermoplastic mask and headrest was prepared using the same HN phantom. We measured the setup error using the ExacTrac X-ray image system. Furthermore, using the ionization chamber and the water-equivalent phantom, we measured the changes in the dose due to the difference in the immobilization device material from the photon of 4 MV and 6 MV. The positional accuracy of the two devices were almost similar in each direction except in the vertical, lateral, and pitch directions (t-test, p<0.0001), and the maximum difference was 1 mm, and 1°. The standard deviations were not statistically different in each direction except in the longitudinal (F-test, p=0.034) and roll directions (F-test, p<0.0001). When the thickness was the same, the dose difference was almost similar at a 50 mm depth. At a 1 mm depth, the 3DID-plate had a 2.9–4.2% lower dose than the CID-plate. This study suggested that the positional accuracy and dosimetric properties of 3DID were almost similar to those of CID.</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 73 (1), 57-65, 2017
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
- 1390282681337790848
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- NII論文ID
- 130005289778
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 027966988
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- PubMed
- 28111399
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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
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可