Radiology M4 - R2 : Quality assurance

Question 1

introducing simple systems, sop

improving working environment

and encouraging reporting without blame

the above would help with what?

Answer 1

help reduce human error

Question 2

what governs quality assurance

Answer 2

legislations such as;

IRR 2017

IR(ME)R 2017

Question 3

there are four people responsible for quality assurance who are they?

Answer 3

employer - the boss

practioner - justification

operator - anyone involved in the production of a radiograph

referrer - one who refers the patient for radiograpghs

Question 4

what do we look at in a quality assurance programme?

Answer 4

image quality

X-ray equipment

processing (film and digital)

working procedures

training

audit

Question 5

what two things are done to ensure high quality images

Answer 5

audit the images we produce by a

1. image quality rating system
2. film reject analysis

Question 6

radiograpghs are graded by image quality, what is the grading system

Answer 6

the grading system is

1 = perfect

2 = not perfect, but can be used clinically

3 = must be re-done

Question 7

no errors of patient preparation, exposure, positioning, processing or film handling

teh above best describes which quality grade

Answer 7

1

Question 8

diagnostically acceptable - some errors in patient preparation, exposure, positioning, processing or handling which do not detract from the diagnostic utility of the radiograpgh

the above describes which grading rating

Answer 8

2

Question 9

unacceptible - errors of patient preparation, exposure, positioning, processing and/or handling which render the radiograph diagnostically unacceptable

the above best describes which image quality grade

Answer 9

3

Question 10

what are the desired targets for films rated

Answer 10

number of films rated 1 > 70%

number of films rated 2 < 20%

number of films rated 3 < 10%

Question 11

how would you go abouts doing a reject film analysis

Answer 11

collect all rating/grade 3 films

at end of each month assess these films

categorise faults e.g. exposure, positioning, processing, etc

repeat every month

Question 12

what are the four cycles of the IQRS audit cycle

Answer 12

assess - evaluate images

grade - 1,2,3

results - analyse look for ways to improve

feedback

Question 13

Legistlation requires auditing of the X-ray equipment, what is required for this audit.

Answer 13

equipment inventory must be kept

all equipment must be tested regularly to check that it is working satisfactory

preferably annually but minimum of every 3 years

these checks must include representative patient doses

routine maintenance - annually

Question 14

in reference to film storage why is it important to avoid direct sunlight and UV when it comes to digital PSP

Answer 14

the PSP is sensitive to light and would excite the PSP, which when used would make the image not clear.

it is important that if they are not being used, they should be erased.

Question 15

what is a sensitometry

Answer 15

compares film processed with fresh chemistry with images produced as developer gets exhausted

exhausted developer = pale image

Question 16

what can be used to produce an showing “steps” of blackening from pale grey to dark grey/black

Answer 16

a simple step wedge