The methylguanidine derivative C-GMOM (C-labeled -(2-chloro-3-thiomethylphenyl)-'-(3-methoxyphenyl)-'-methylguanidine) has been used successfully to quantify -methyl-d-aspartate (NMDA) receptor binding in humans. The purpose of the present study was to estimate the C-GMOM radiation dose in healthy humans. After C-GMOM injection, 3 female and 2 male subjects underwent 10 consecutive whole-body PET scans in approximately 77 min.
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