This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nuclear Medicine, Subject name: Radiology
[{'content': 'Radionucleotide used in Scintimammography is? \nSelect and explain. \nA. HIDA, B. MIBG, C. Sestamibi (MIBI), D. DTPA', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans CThe ability of scintimammography to detect cancer is not limited by dense breast tissue, post-operative scar tissue or breast implants, and it can reduce unnecessary procedures by helping determine whether an abnormality requires biopsy. Technetium-99m sestamibi (99mTc-MIBI) is the most commonly used radiopharmaceutical.', 'role': 'assistant'}]