Computrtised Axial Tomography

By: Anudi & Jessie

What is it?

The Computerised Axial Tomography also known as the CAT/CT scan is an X – ray procedure that implies X – ray images with computer generates cross-section views, also if needed 3D images of the internal organs and structures of the body.


What part of the brain is it used for?

The CAT scan provides information about the internal structures of various parts of the body. The head, traumatic injuries such as blood clots or skull fractures, tumours and infections can be identified by conducting the CAT scan. It can also be used on the spine/ the structure of the vertebra.


Advantages of using this scan:

- CT scan can be performed in patients with implanted medical devices.

- CT can rapidly identify the presence of a stroke early in evolution

- CT scan can provide detailed images of the brain nervous tissue

- CT is excellent for individuals involved in head trauma

Disadvantages of this scan:

- CT scan should never be done in a pregnant female because of the exposure of radiation risk to the fetus

- Unlike adults, CT scan should not be repeated in children because of the repeat radiation exposure

- The dye used in a CT is iodine based and is often a cause of allergy.

- The dye can also lead to kidney failure in individuals with diabetes

What types of conditions can it be use to investigate:

It can be used to diagnose brain tumors by showing swelling, bleeding, and bone and tissue calcification (inserting of calcium). It can aslo diagnose stomach cancer and many other conditions.

Are there any people who can't use CAT scans?

- Pregnant Women

- Children

What types of brain conditions can't the scan be used to investigte?

CAT scans cannot investigate conditions not related to the structure of the brain, such as:

- anxiety

- depression

- elpilepsy