Radiology An asymptomatic old patient presents with bruit in the carotid artery. Which of the following is the investigation of choice? A Doppler ultrasonography B Internal carotid angiography C Aortic arch angiography D Spiral CT angiography 💡 Explanation An asymptomatic old patient presents with bruit in the carotid artery. Which of the following is the investigation of choice? ✓ Correct Answer: A. Doppler ultrasonography