Choline C-11
(11)C-choline is a choline in which one of the methyl carbons is replaced by an (11)C isotope. An intravenous radioactive diagnostic agent used (in the form of its chloride salt) as a tracer during positron emission tomography scans to help detect sites of recurrent prostate cancer. It has a role as a radioactive imaging agent and a radioactive tracer. It is a member of cholines and an (11)C-modified compound.