(tek-NEE-shee-um Ã¢ÂÂ¦ SES-tuh-MIH-bee) A substance being studied in certain cancer-imaging tests using positron emission tomography (PET). It contains a radioactive substance called technetium, bound to another substance called sestamibi, that helps it enter cells. It may help show how well cancer cells take up anticancer drugs. It is a type of radiopharmaceutical.
- Browse Related Terms: 11C topotecan, 18F-FLT, 3'-deoxy-3'-(18F) fluorothymidine, EF5, fluorine F 18 EF5, fluorothymidine F 18, technetium Tc 94m sestamibi