A brain CT scan without contrast is a non-invasive diagnostic method that uses X-ray technology to create detailed images of the brain structures. This type of scan does not require the injection of a contrast agent, making it a safer option for patients with certain contraindications.
 
How It Works: During the procedure, the patient lies on a movable table that passes through a ring-shaped scanner. The scanner rotates around the patient’s head, emitting thin X-ray beams at various angles. Detectors capture this information, which is then processed by a computer to reconstruct cross-sectional images of the brain.
 
Clinical Applications: A brain CT scan without contrast is widely used to diagnose various brain conditions, including injuries, strokes, tumors, and congenital abnormalities. This method provides clear and accurate visualization of brain structures.
 
Indications for a Brain CT Scan without Contrast:
Head Injuries: To detect bleeding, skull fractures, or other damage after a traumatic brain injury.
Suspected Stroke: For rapid diagnosis of ischemic or hemorrhagic stroke and to determine the extent of brain damage.
Unexplained Headaches: To rule out potential tumors, hemorrhages, or other structural brain changes.
Seizures: To identify causes of epilepsy and detect structural brain abnormalities.
Neurological Disorders: For diagnosing conditions like dementia, multiple sclerosis, or other nervous system disorders.
Post-surgical Monitoring: To assess outcomes and detect possible complications after brain surgery.
 
Preparation: No special preparation is required for a brain CT scan without contrast. However, patients should:
Remove all metal objects, such as jewelry, hairpins, hearing aids, and dentures.
Inform the doctor if they are pregnant, as the procedure may be contraindicated.
Notify the doctor if they have claustrophobia or any other conditions that may make the scan challenging.
 
Procedure Duration: Approximately 15-20 minutes.