10 Point Image Check List

Question 1

What are the 10 points of the 10 point image checklist?

Answer 1

Patient identification
Anatomical markers/legends
Area of interest
Correct projection
Collimation
Contrast/density
Unsharpness/definition
Artefacts
Any pathology
Need for a repeat or additional projections

Question 2

How is patient identification checked?
(3)

Answer 2

Name
Date of birth
Address/patient hospital ID number/NHS number

Question 3

What are anatomical markers?

Answer 3

Markers that indicate the side of the patient that has been imaged or the left/right side of the patient

Question 4

When are anatomical markers used?

Answer 4

At the time of the exposure, but it can be added later electronically

Question 5

As well as anatomical markers, what can we also add?
Why would we add this?

Answer 5

The orientation of the patient

If the x-ray isn’t in the normal standard

Question 6

What other standards are there apart from the normal standard?
(5)

Answer 6

Supine
Erect
Weight bearing
Mobile
Ward

Question 7

Why is it good for the orientation of the patient to be included?

Answer 7

It allows for an easy report to be made

Question 8

What is the area of interest?

Answer 8

The location of the body that has been imaged

Question 9

Where do we get the area of interest information from?

Answer 9

From the image request form

Question 10

What does ?# mean?

Answer 10

Query fracture

Question 11

What does correct projection mean?

Answer 11

The correct radiographic projection for each body part, e.g. AP, PA, lateral, etc

Question 12

How many views do we normally do for most body parts?

Answer 12

2 views at right angles/perpendicular

Question 13

Why do we tend to take 2 views for most body parts?

Answer 13

Because 1 view may provide an inaccurate view of the body

Question 14

Where does the region of interest (ROI) have to be in an image?

Answer 14

In the middle of

Question 15

What does contrast mean?
(2)

Answer 15

It’s the amount of separation of dark and light tones and shades of grey

Question 16

What does density mean?

Answer 16

It’s the overall darkness on a radiograph

Question 17

How does an image that has good density look like?

Answer 17

The background of the image is black

Question 18

What do exposure factors show?
(3)

Answer 18

Bony details
Soft tissue structures
Organs

Question 19

What is the exposure index (EI)?

Answer 19

A target measurement of the x-ray photons that should reach the detector.

Question 20

What does the exposure index (EI) depend on?
(3)

Answer 20

Body part
Patient size
Exposure factors selected

Question 21

What does the deviation index (DI) do?

Answer 21

It measures the difference between how many photons should be reaching the image region for that body part

Question 22

What are the 4 types of unsharpess?

Answer 22

Geometric unsharpness
Image receptor unsharpness
Movement unsharpness
Edge unsharpness

Question 23

What are artefacts?

Answer 23

Anything that distracts from the image, e.g. hair clips, mobile phone, coins, etc

Question 24

How can we tell if a repeat of the x-ray is needed?
(2)

Answer 24

Does the current image meet the criteria for a diagnostic image?

Can the clinical question be answered using the current image?

Question 25

How can we tell if additional projections are needed?
(2)

Answer 25

Check the protocol

Check with a senior colleague or radiologist