<prompt> Radioisotopes used in Myocardial perfusion imaging: Thallium 201 18 FDG PET Tc-99m Sestamibi Tc-99m Pyrophosphate Tetrafosmin N-13 Ammonium1,3,4,51,2,3,4,5,61,3,5,61,3,4,5,6  <response>: - Thallium-201, Sestamibi, Tetrofosmin scan are used for Myocardial Perfusion Imaging. - Pyrophosphate scan for Myocardial Infarction. - 18 FDG PET is used to detect Myocardial Viability - N-13ammoniaPETmyocardial perfusion imagingMPI yields larger stressperfusiondefects than dipyridamole stress and might reflect the truemyocardialischemic burden. 