期刊
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
卷 30, 期 1, 页码 46-50出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/jcbfm.2009.190
关键词
graphical analysis; occupancy; PET
Quantitative estimation of neuroreceptor occupancy by exogenous drugs using positron emission tomography is based on the reduction in the total volume of distribution (V(T)) of site-specific radioligands after drug administration. An estimate of the distribution volume of free and non-specifically bound radioligand (V(ND)) is also required to distinguish specific from total binding. However, a true reference region, devoid of specific binding, is often not available. We present a transformation of a graphical method, originally introduced by Lassen, using regional estimates of V(T) alone to determine occupancy, together with an extension that does not require baseline data. Journal of Cerebral Blood Flow & Metabolism (2010) 30, 46-50; doi: 10.1038/jcbfm.2009.190; published online 9 September 2009
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