CT Scan
A computed tomography (CT) scan uses X-rays and a computer to produce detailed cross-sectional images of the body. In a few minutes it can show the brain, sinuses, chest, abdomen, pelvis and skeleton in far more detail than a plain X-ray, which makes it invaluable in emergencies and for planning surgery or cancer treatment.
At YGOPH, doctors request CT scans for children after a head injury or with suspected hydrocephalus, for women with a pelvic or abdominal mass, for cancer staging, and for serious complications after childbirth such as a suspected blood clot. Our radiologists adapt every protocol to the patient's age and size. Please note that YGOPH does not offer MRI; when MRI is needed, your doctor will refer you to a partner facility in Yaoundé.
What is a CT scan?
During a CT scan you lie on a narrow table that slides slowly through a large ring-shaped scanner. An X-ray tube rotates around you and a computer builds thin 'slices' of the body, which the radiologist can view from every angle. For some examinations, a contrast medium (an iodine-based dye) is injected into a vein or given as a drink to make blood vessels and organs stand out more clearly. The scan itself usually takes less than ten minutes and is painless.
- Head injury, loss of consciousness or seizures, especially in children
- Suspected hydrocephalus or other brain abnormalities when ultrasound is not enough
- Assessment of an abdominal or pelvic mass, including ovarian and uterine tumours
- Staging and follow-up of cancers such as cervical, breast and ovarian cancer
- Suspected blood clot in the lungs or brain, particularly after childbirth
- Complex fractures and injuries after an accident
Good to know
CT with or without contrast
A plain CT scan needs no injection. When contrast is needed, a nurse places a small cannula in a vein and the dye is injected during the scan. You may feel a brief warm sensation or a metallic taste; this is normal. Before contrast, the team checks your kidney function and asks about allergies, asthma, diabetes treatment and any previous reaction to contrast.
CT scans for children
Children receive a lower radiation dose adapted to their size, and a scan is only done when the benefit clearly outweighs the risk. Ultrasound is preferred whenever it can answer the question. Young children must lie still for a short time; a parent can usually stay close by, and occasionally light sedation is organised with the paediatric team.
Understanding your results
A radiologist interprets the images and writes a report for the doctor who requested the scan. Most reports are ready the same day, although complex examinations may take a little longer. Your doctor will explain the findings and the next steps. Keep your CT images and report safely: they are useful for comparison at future examinations.