Principles of Imaging

Question 1

How does an X-ray work?

Answer 1

Uses X-ray radiation to create an image.
Contrast is produced when the x-ray detector receives different levels of radiation

Question 2

What is a CT scan?

Answer 2

Uses X-ray radiation to create an image.
Multiple x-ray slices are generated as a patient passes through the CT scanner.

Question 3

What is an MRI scan?

Answer 3

Uses electromagnetic field to create an image.
Multiple slices are generated as a patient passes through the MRI scanner.
Good for viewing soft tissues with a high water content (e.g. Brain and spinal cord)