Figure 2From: 11C-LY2428703, a positron emission tomographic radioligand for the metabotropic glutamate receptor 1, is unsuitable for imaging in monkey and human brains Whole-brain time-activity curves without (black-filled circle, ●) and with (white-filled circle, ○) vascular correction. The measured whole blood radioactivity was used for vascular correction, assuming that blood constitutes 5% brain volume.Back to article page