10 Point Image Check List Flashcards
What are the 10 points of the 10 point image checklist?
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
How is patient identification checked?
(3)
Name
Date of birth
Address/patient hospital ID number/NHS number
What are anatomical markers?
Markers that indicate the side of the patient that has been imaged or the left/right side of the patient
When are anatomical markers used?
At the time of the exposure, but it can be added later electronically
As well as anatomical markers, what can we also add?
Why would we add this?
The orientation of the patient
If the x-ray isn’t in the normal standard
What other standards are there apart from the normal standard?
(5)
Supine
Erect
Weight bearing
Mobile
Ward
Why is it good for the orientation of the patient to be included?
It allows for an easy report to be made
What is the area of interest?
The location of the body that has been imaged
Where do we get the area of interest information from?
From the image request form
What does ?# mean?
Query fracture
What does correct projection mean?
The correct radiographic projection for each body part, e.g. AP, PA, lateral, etc
How many views do we normally do for most body parts?
2 views at right angles/perpendicular
Why do we tend to take 2 views for most body parts?
Because 1 view may provide an inaccurate view of the body
Where does the region of interest (ROI) have to be in an image?
In the middle of
What does contrast mean?
(2)
It’s the amount of separation of dark and light tones and shades of grey
What does density mean?
It’s the overall darkness on a radiograph
How does an image that has good density look like?
The background of the image is black
What do exposure factors show?
(3)
Bony details
Soft tissue structures
Organs
What is the exposure index (EI)?
A target measurement of the x-ray photons that should reach the detector.
What does the exposure index (EI) depend on?
(3)
Body part
Patient size
Exposure factors selected
What does the deviation index (DI) do?
It measures the difference between how many photons should be reaching the image region for that body part
What are the 4 types of unsharpess?
Geometric unsharpness
Image receptor unsharpness
Movement unsharpness
Edge unsharpness
What are artefacts?
Anything that distracts from the image, e.g. hair clips, mobile phone, coins, etc
How can we tell if a repeat of the x-ray is needed?
(2)
Does the current image meet the criteria for a diagnostic image?
Can the clinical question be answered using the current image?
How can we tell if additional projections are needed?
(2)
Check the protocol
Check with a senior colleague or radiologist
