This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
[{'content': 'The procedure of choice for the evaluation of an aneurysm is : \nSelect and explain. \nA. Ultrasonography, B. Computed tomography, C. Magnetic resonance imaging, D. Arteriography', 'role': 'user'}, {'content': 'Answer: D \nExplanation: "Cerebral angiography remains the investigation of choice for vascular lesions such as AV malformation or\xa0analysis".', 'role': 'assistant'}]