Title |
Kinetic analysis and test-retest variability of the radioligand [11C](R)-PK11195 binding to TSPO in the human brain - a PET study in control subjects
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Published in |
EJNMMI Research, April 2012
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DOI | 10.1186/2191-219x-2-15 |
Pubmed ID | |
Authors |
Aurelija Jučaite, Zsolt Cselényi, Annie Arvidsson, Gabrielle Åhlberg, Per Julin, Katarina Varnäs, Per Stenkrona, Jan Andersson, Christer Halldin, Lars Farde |
Abstract |
Positron-emission tomography and the radioligand [11C](R)-PK11195 have been used for the imaging of the translocator protein (TSPO) and applied to map microglia cells in the brain in neuropsychiatric disorders. [11C](R)-PK11195 binding has been quantified using reference region approaches, with the reference defined anatomically or using unsupervised or supervised clustering algorithms. Kinetic compartment modelling so far has not been presented. In the present test-retest study, we examine the characteristics of [11C](R)-PK11195 binding in detail, using the classical compartment analysis with a metabolite-corrected arterial input function. |
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