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
A 50-year-old patient with ischemic hea disease develops chest pain. ECG shows ST segment elevation and Q waves. Myocardial necrosis in this patient can be best demonstrated by: 
Select and explain. 
A. Technetium 99 tetrofosmin, B. Sestambi scan, C. Technetium 99 Pyrophosphate, D. Thallium 201
C: Technetium 99 Pyrophosphate
Answer: C: Technetium 99 Pyrophosphate 
Explanation: Myocardial infarct imaging: Tc99m pyrophosphate is used to localize the area of infarct in hea. Area of infarct On thallium scan (Perfusion image) Cold spot Pyrophosphate scan (Infarct image) Hot spot