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Investigation on effect of image lag in fluoroscopic images obtained with a dynamic flat-panel detector (FPD) on accuracy of target tracking in radiotherapy
https://doi.org/10.24517/00013381
https://doi.org/10.24517/0001338196db1eb6-2280-47db-ad82-6f171b3e34d4
| 名前 / ファイル | ライセンス | アクション |
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ME-PR-TANAKA-R-723.pdf (602.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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| 公開日 | 2017-10-03 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Investigation on effect of image lag in fluoroscopic images obtained with a dynamic flat-panel detector (FPD) on accuracy of target tracking in radiotherapy | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| ID登録 | ||||||||||||||
| ID登録 | 10.24517/00013381 | |||||||||||||
| ID登録タイプ | JaLC | |||||||||||||
| 著者 |
Tanaka, Rie
× Tanaka, Rie× Ichikawa, Katsuhiro× Mori, Shinichiro× Dobashi, Suguru× Kumagai, Motoki× Kawashima, Hiroki× Minohara, Shinichi× Sanada, Sigeru |
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| 著者別表示 |
田中, 利恵
× 田中, 利恵
× 市川, 勝弘
× 川嶋, 広貴
× 真田, 茂
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| 提供者所属 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | 金沢大学医薬保健研究域保健学系 | |||||||||||||
| 書誌情報 |
Journal of Radiation Research 巻 51, 号 6, p. 723-731, 発行日 2010-11-01 |
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 0449-3060 | |||||||||||||
| NCID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA00705792 | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | 10.1269/jrr.10059 | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | Japan Radiation Research Society = 日本放射線影響学会 | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Real-time tumor tracking in external radiotherapy can be achieved by diagnostic (kV) X-ray imaging with a dynamic flat-panel detector (FPD). The purpose of this study was to address image lag in target tracking and its influence on the accuracy of tumor tracking. Fluoroscopic images were obtained using a direct type of dynamic FPD. Image lag properties were measured without test devices according to IEC 62220-1. Modulation transfer function (MTF) and profile curves were measured on the edges of a moving tungsten plate at movement rate of 10 and 20 mm/s, covering lung tumor movement of normal breathing. A lung tumor and metal sphere with blurred edge due to image lag was simulated using the results and then superimposed on breathing chest radiographs of a patient. The moving target with and without image lag was traced using a template-matching technique. In the results, the image lag for the first frame after X-ray cutoff was 2.0% and decreased to less than 0.1% in the fifth frame. In the measurement of profile curves on the edges of static and moving tungsten material plates, the effect of image lag was seen as blurred edges of the plate. The blurred edges of a moving target were indicated as reduction of MTF. However, the target could be traced within an error of ± 5 mm. The results indicated that there was no effect of image lag on target tracking in usual breathing speed in a radiotherapy situation. | |||||||||||||
| 権利 | ||||||||||||||
| 権利情報 | Copyright (c) 2010 by THE JAPAN RADIATION RESEARCH SOCIETY | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| 関連URI | ||||||||||||||
| 識別子タイプ | URI | |||||||||||||
| 関連識別子 | http://www.jstage.jst.go.jp/article/jrr/51/6/51_723/_article | |||||||||||||
