Figure 4From: Imaging of α7 nicotinic acetylcholine receptors in brain and cerebral vasculature of juvenile pigs with [18F]NS14490Percentage of untransformed [18F ]NS14490 in plasma as a function of circulation time. The inset shows a representative chromatogram of a plasma extract at 30 min p.i. The retention time of [18F]NS14490 was 41 min. A total of four radiometabolites were detected (M1 to M4).Back to article page