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Measurement of gantry rotation time in modern ct
http://hdl.handle.net/2297/37012
http://hdl.handle.net/2297/3701232427577-30d3-4f5d-aef8-aeef726d8ca5
名前 / ファイル | ライセンス | アクション |
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ME-PR-FUKUDA-A-303.pdf (222.4 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 | Measurement of gantry rotation time in modern ct | |||||
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 | |||||
著者 |
Fukuda, Atsushi
× Fukuda, Atsushi× Lin, Pei-Jan P.× Matsubara, Kosuke× Miyati, Tosiaki |
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書誌情報 |
Journal of Applied Clinical Medical Physics 巻 15, 号 1, p. 303-308, 発行日 2014-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1526-9914 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12034060 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1120/jacmp.v15i1.4517 | |||||
出版者 | ||||||
出版者 | American Association of Physicists in Medicine | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The purpose of this study was to develop and evaluate a noninvasive method to assess rotation time in modern commercial computed tomography (CT) systems. The rotation time was measured at a selected nominal rotation time (400 ms) utilizing two types of solid-state detectors: the RTI's CT Dose Profiler (CTDP) and Unfors' Xi (Xi) probes. Either CTDP or Xi was positioned on the inner cover of the gantry and a sheet of lead (1 mm thick) placed on top of the detector. Since a pair of two successive peaks is used to determine the gantry rotation time, by necessity the helical scan must be employed. Upon completion of the data acquisition, these peak times were determined with the dedicated software to obtain rotation time. The average rotation time obtained with CTDP and Xi operated under the dedicated software was found to be 400.6 and 400.5 ms, respectively. The detector for this measurement need not be specifically designed for CT dosimetry. The measurements of CT scanner rotation time can be accomplished with a radiation probe designed for the CT application or a conventional radiation probe designed for radiography and fluoroscopy applications. It is also noteworthy to point out that the measurement results are in good agreement between the two radiation detector systems. Finally, clinical medical physicists should be aware of the accuracy and precision of gantry rotation time, and take into consideration for QA where and when applicable. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | PACS number: 87.57.Q- | |||||
権利 | ||||||
権利情報 | Authors retain copyright: Creative Commons Attribution License | |||||
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 |