**Core Concept**
Cerebral angiography is a medical imaging technique that involves the injection of a contrast agent into the blood vessels of the brain to visualize the cerebral vasculature. This procedure is typically performed to diagnose or treat conditions affecting the blood vessels in the brain, such as aneurysms, arteriovenous malformations, or stenosis.

**Why the Correct Answer is Right**
The correct answer is **Intravenous injection of iodinated contrast followed by X-ray imaging**. This method involves the injection of a contrast agent into a peripheral vein, which is then carried by the bloodstream to the cerebral vessels. As the contrast agent passes through the blood vessels, X-ray imaging is used to visualize the cerebral vasculature. This technique allows for the assessment of the blood vessels in the brain, including their size, shape, and any potential abnormalities.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify the method of contrast agent delivery. While some cerebral angiography techniques may involve direct injection into the cerebral vessels, this is not the most common method.

**Option B:** This option is incorrect because it is not a specific enough method. While MRI and CT scans can be used to visualize the cerebral vasculature, they do not typically involve the injection of a contrast agent.

**Option C:** This option is incorrect because it is too vague. While catheterization is a common method used in various medical procedures, it does not specifically refer to the technique used in cerebral angiography.

**Clinical Pearl / High-Yield Fact**
When performing cerebral angiography, it is essential to use a non-ionic, water-soluble contrast agent to minimize the risk of adverse reactions. Additionally, the procedure should be performed under fluoroscopic guidance to ensure accurate placement of the catheter and optimal visualization of the cerebral vasculature.

**Correct Answer: D. Digital subtraction angiography following intravenous injection of iodinated contrast.**