The contrast dye helps to highlight blood vessels, tumors, and abnormalities in the brain by making them appear brighter on the images, allowing doctors to detect issues more easily.

No, the scan itself is not painful, but the injection of the contrast dye may cause a brief, mild sensation of warmth or flushing as it enters the bloodstream.

The procedure usually takes about 10 to 15 minutes. The scan itself takes just a few minutes, but the entire process, including preparation and contrast injection, may take longer.

Most people do not experience side effects, but some may have mild reactions like a warm feeling, metallic taste, or slight nausea. Severe allergic reactions are rare but can occur, so it’s important to inform your doctor about any allergies or previous reactions to contrast agents.