This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
[{'content': 'Which of the following is the best test for ble myocardium after MI? \nSelect and explain. \nA. Thallium scan, B. MUGA scan, C. MDCT, D. Stress Echocardiography', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A thallium scan is a class I indication for Risk assessment, prognosis, and assessment of therapy after STE acute myocardial infarction and can be used to determine the following : 1. Rest or exercise RV/LV function 2. Presence/extent of stress-induced ischemia 3. Detection of infarct size and residual ble myocardium 4. Diagnosis, prognosis, and assessment of therapy in patients with unstable angina/NSTEMI', 'role': 'assistant'}]