If a dye is needed, there will be the small amount of pain when the needle is inserted, and shortly thereafter. Other than that, the CT is painless. Some patients are allergic to iodine and may experience a reaction that may include hives , itching , nausea , breathing difficulty , or other symptoms. There may be some concern regarding X-rays. Consult your health care provider about the risks if multiple CT scans are needed over a period of time.
Bone appears white, brain matter appears gray, and cerebral fluid appears black.
A CT scan can decrease or eliminate the need for invasive procedures to diagnose problems in the skull. This is one of the safest means of studying the head and neck. This is an illustration of the major areas of the brain. Each area has one or more specific functions. CT stands for computerized tomography.