In radionuclide imaging, the most useful radiopharmaceutical agent for skeletal imaging is: March 2012, March 2011
Ans: A i.e. Tc-99m linked to methylene diphosphonate (99m Tc-MDP) Radiopharmacological agents and uses Tc-99m linked to methylene diphosphonate (99m Tc-MDP) is used in bone imaging Tc-99 pyrophosphate is used for defining hot spots in myocardial infarction/avid infarct imaging 99m Tc-Sc is used in imaging of reticuloendothelial system (liver/ spleen), gastric emptying, GI bleeds Gallium 67 is used for tumours/abscess
Tc-99m linked to methylene diphosphonate (99m Tc-MDP)
Tc-99 pyrophosphate
Tc-sulphur colloid (99m Tc-Sc)
Gallium 67