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What is In radionuclide imaging, the most useful radiopharmaceutical agent for skeletal imaging is: March 2012 and explain in detail?
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