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. Author manuscript; available in PMC: 2012 Feb 1.

Published in final edited form as: Neuroimage. 2010 Oct 26;54(3):1903–1909. doi: 10.1016/j.neuroimage.2010.10.064

[¹¹C](R)-rolipram parent concentration over time obtained from the image input function () and from the arterial input function (○) of a representative healthy subject. The parent fraction has been estimated by fitting a monoexponential function through the parent/whole blood ratio measured in the four blood samples used to calculate the image-derived input function.

Inline graphic — [¹¹C](R)-rolipram parent concentration over time obtained from the image input function () and from the arterial input function (○) of a representative healthy subject. The parent fraction has been estimated by fitting a monoexponential function through the parent/whole blood ratio measured in the four blood samples used to calculate the image-derived input function.