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A new graphic plot analysis for determination of neuroreceptor binding in positron emission tomography studies
https://repo.qst.go.jp/records/47330
https://repo.qst.go.jp/records/47330dba7cf1b-9ac2-449b-8aab-6e6adb3980a0
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-11-13 | |||||
タイトル | ||||||
タイトル | A new graphic plot analysis for determination of neuroreceptor binding in positron emission tomography studies | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Ito, Hiroshi
× Ito, Hiroshi× Yokoi, Takashi× Ikoma, Yoko× Shidahara, Miho× Seki, Chie× Naganawa, Mika× Takahashi, Hidehiko× Takano, Harumasa× Kimura, Yuichi× Ichise, Masanori× Suhara, Tetsuya× 伊藤 浩× 横井 孝司× 生駒 洋子× 志田原 美保× 関 千江× 長縄 美香× 高橋 英彦× 高野 晴成× 木村 裕一× 市瀬 正則× 須原 哲也 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In positron emission tomography (PET) studies with radioligands for neuroreceptors, tracer kinetics have been described by the standard two-tissue compartment model that includes the compartments of nondisplaceable binding and specific binding to receptors. In the present study, we have developed a new graphic plot analysis to determine the total distribution volume (VT) and nondisplaceable distribution volume (VND) independently, and therefore the binding potential (BPND). In this plot, Y(t) is the ratio of brain tissue activity to time-integrated arterial input function, and X(t) is the ratio of time-integrated brain tissue activity to time-integrated arterial input function. The x-intercept of linear regression of the plots for early phase represents VND, and the x-intercept of linear regression of the plots for delayed phase after the equilibrium time represents VT. BPND can be calculated by BPND=VT/VND−1. Dynamic PET scanning with measurement of arterial input function was performed on six healthy men after intravenous rapid bolus injection of [11C]FLB457. The plot yielded a curve in regions with specific binding while it yielded a straight line through all plot data in regions with no specific binding. VND, VT, and BPND values calculated by the present method were in good agreement with those by conventional non-linear least-squares fitting procedure. This method can be used to distinguish graphically whether the radioligand binding includes specific binding or not. |
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書誌情報 |
NeuroImage 巻 49, 号 1, p. 578-586, 発行日 2010-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1053-8119 |