copper Cu 64-ATSM
(KAH-per …)
A substance being studied in PET imaging to detect certain types of tumors. Copper Cu 64 is a radioactive substance. It is linked to ATSM, which is taken up by tissues that have low levels of oxygen, such as some tumor tissues. A PET scanner is used to detect which cells in the body have taken up copper Cu 64-ATSM. It is a type of radioimaging agent.