Lecture 16 - X-Rays

Question 1

What is attenuation?

Answer 1

Reduction of X-Ray Intensity when X-rays are absorbed by the body

Question 2

What is the densest and least densest material in body?

Answer 2

Bones are densest

Soft tissue is least dense

Question 3

Give an example of why low density occurs for areas which should have high density?

Answer 3

Air entering certain organs/cavities of the body.

Question 4

How do you systematically interpret X-rays?

Answer 4

What type of film - What it shows

Which way round?

Adequacy - Can you see what you need to? Images have certain requirements

Question 5

What terms do we use for determining the way round of an x-ray? (6)

Answer 5

Superior - From Top
Anterior - From Front
Posterior - From Back
Inferior - From Bottom
Medial - Towards midline
Lateral - Away from midline

Question 6

Name and describe the 3 planes.

Answer 6

Transverse/Axial Plane - Horizontal

Sagittal Plane - Vertical (face halved)

Coronal Plane - Vertical (anterior/posterior halved)