This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Angiography, Subject name: Radiology
[{'content': 'IOC for Acute Aoic Dissection in a Clinically Unstable patient is? \nSelect and explain. \nA. NCCT, B. CT-Angio, C. TEE, D. MRI', 'role': 'user'}, {'content': 'Answer: C \nExplanation: *In Acute Aoic Dissection Stable Patient-CT-Angio (MDCT with contrast) Unstable Patient-TransEsophageal Echo(TEE)', 'role': 'assistant'}]