6-How to take a good radiography

Question 1

What is the goal of a radiograph

Answer 1

A diagnostic image- an image that accurately represents the anatomy of the patient and allows us to make a diagnosis

Question 2

What does pink camels collect extra large apples stand for?

Answer 2

Position
Centre
collimation
exposure
label
artefact

Question 3

Why is positioning important in radiographs?

Answer 3

Minimise distortion & magnification
Achieved by having area of interest closest to plate, and central, parallel to the plate and perpendicular to the beam

Question 4

Why do we collimate

Answer 4

Decrease scatter radiation
Improve image
Decrease patient dose- radiation safety

Question 5

Why is the correct exposure important

Answer 5

allows us to visualise anatomy correctly

Question 6

Does mAs affect contrast

Answer 6

No

Question 7

T/F high Kv reduces contrast

Answer 7

True

Question 8

What does kV determine

Answer 8

quality or penetrating power of the beam
Number and energy of the x-ray photons

Question 9

What will the radiograph look like if over/under exposed

Answer 9

Over= black
under- grainy

Question 10

What does mAs determine

Answer 10

the number of x-ray photons produced