An X-ray of the cerebral arteries, including the internal carotids, taken after the injection of a contrast medium is

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A cerebral angiography is specifically an X-ray of the cerebral arteries after injection of a contrast medium, and is used to diagnose and treat conditions affecting blood flow to the brain. A brain scan (B) is a general term that could refer to various imaging techniques, such as MRI or CT, that provide information about the brain structures but not necessarily the blood vessels. Echoencephalography (C) is an ultrasound imaging technique that provides information about brain structures and fluid accumulation, but not the blood vessels. A PET scan (D) involves injecting a radioactive substance to visualize metabolic activity in the brain, and is used to diagnose and monitor conditions such as brain tumors, but it does not provide information about the blood vessels.

An X-Ray of the Cerebral Arteries, Including the Internal Carotids