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Effects of image lag on real-time target tracking in radiotherapy
https://doi.org/10.24517/00013776
https://doi.org/10.24517/0001377667677248-8104-4660-b083-dcd374780779
| 名前 / ファイル | ライセンス | アクション |
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ME-PR-TANAKA-R-76224S.PDF (442.8 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 | Effects of image lag on real-time 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 | 10.24517/00013776 | |||||||||||||
| ID登録タイプ | JaLC | |||||||||||||
| 著者 |
Tanaka, Rie
× Tanaka, Rie× Ichikawa, Katsuhiro× Mori, Shinichiro× Dobashi, Suguru× Kumagaya, Motoki× Kawashima, Hiroki× Morita, Shinichi× Sanada, Shigeru |
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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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| 書誌情報 |
Progress in Biomedical Optics and Imaging - Proceedings of SPIE 巻 7622, 号 PART 3, p. 76224S, 発行日 2010-01-01 |
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 1605-7422 | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | 10.1117/12.844202 | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | Society of Photo-optical Instrumentation Engineers (SPIE) | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | There is a concern that image lag may reduce accuracy of real-time target tracking in radiotherapy. This study was performed to investigate influence of image lag on the accuracy of target tracking in radiotherapy. Fluoroscopic image: were obtained using a direct type of dynamic flat-panel detector (FPD) system under conditions of target tracking during radiotherapy. The images continued to be read out after X-irradiations and cutoff, and image lag properties in the system were then determined. Subsequently, a tungsten materials plate with a precision edge was mounted on to a motor control device, which provided a constant velocity. The plate was moved into the center of the detector at movement rate of 1 and 20 mm/s, covering lung tumor movement of normal breathing, and MTF and profile curves were measured on the edges covering and uncovering the detector. A lung tumor 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 target could be traced within a margin for error ii external radiotherapy. The results indicated that there was no effect of image lag on target tracking in usual breathing speed in a radiotherapy situation. Further studies are required to investigate influence by the other factors, such a: exposure dose, target size and shape, imaging rate, and thickness of a patient's body. © 2010 SPIE. | |||||||||||||
| 権利URI | ||||||||||||||
| 権利情報 | http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=747539 | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
