A plain CT scan of the brain is a standard imaging procedure that uses X-rays to create detailed cross-sectional images of the brain. It provides information about the structure and density of brain tissues, allowing doctors to evaluate for abnormalities such as tumors, hemorrhages, or fractures. This type of scan does not involve the use of contrast agents.
On the other hand, a contrast-enhanced CT scan of the brain involves the use of a contrast dye, typically iodine-based, which is injected into a vein in your arm or hand. The contrast dye helps to highlight blood vessels and certain structures in the brain, providing additional information that may not be visible on a plain CT scan. This can be particularly useful in diagnosing conditions such as brain tumors, infections, or areas of inflammation.
