CAT scans provide a way of creating a 3D image using X-rays.
- The x-ray tube rotates around the patient, allowing x-ray beams to pass through the patient at different angles.
- The shape of this beam is thin fan (see diagram)
- With the help of a computer, images of slices of the patient are produced.
- By moving the x-ray tube we get an image of a different slice.
The fact that the images produced are in 3D is one advantage of CAT scans over a traditional X-ray. Another advantage is that there is better contrast between different soft tissue.
Comments
No comments have yet been made