Test quiz

1

Full Name* This field is required.

First Name

Last Name

2

What is your occupation?

For instance: Sonographer, Ultrasound Manager or Physicist

3

Where do you work?* This field is required.

For instance: Royal Berkshire Hospital

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E-mail* This field is required.

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1. What is the primary purpose of Ultrasound QA?* This field is required.

Compliance with legislation and guidance

Ensure Patient Safety

Repair faulty equipment

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The answer is:

The primary purpose of Ultrasound QA is to ensure patient safety.

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2. Which components of an ultrasound probe are most susceptible to developing significant faults? (Pick three)* This field is required.

Lens

Crystal Array

Backing Layer

Matching Layer

Printed Circuit Board (PCB)

Cable

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The answers are Lens, Crystal Array, and Cable

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3. In what situation is Ultrasound QA a mandatory activity?* This field is required.

In the breast screening and AAA programmes

It is always recommended but not mandatory

In all departments using ultrasound

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The answer is:

Ultrasound Quality Assurance is mandatory in all ultrasound departments. It is legally required under the Health & Social Care Act:

https://www.bmus.org/education-and-cpd/cpd-resources/top-tips/ultrasound-quality-assurance/

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4. Which of the following could be a sign of lens wear when assessing the in-air reverberation pattern?* This field is required.

Dark vertical lines

Bright vertical lines

Loss of signal at edges

Poorer image quality

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The answer is loss of signal at edges. See below.

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5. Is Ultrasound QA relevant for PoCUS equipment?* This field is required.

Yes, for all PoCUS equipment

Yes, except for handheld scanners

No

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The answer is:

Yes, for all PoCUS equipment.

“Recommendations for specialists practising ultrasound independently of radiology departments” (April 2023).

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6. How much do General Purpose Ultrasound QA Phantoms typically cost?* This field is required.

£100-£500

£2000-£5000

£8000-£12,000

£15,000-£20,000

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The answer is:

£2000-£5000

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7. According to a survey of probe condition in NHS hospitals, what percentage of probes were faulty?* This field is required.

4%

12%

37%

83%

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The answer is:

37%

24.6% of probes had a fault which required monitoring whilst 12.6% were failures in need of replacement. In a typical NHS trust which performs 50,000 diagnostic ultrasound scans a year, this would mean over 6000 scans were performed with probes that were failures.

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8. How long does user QA take per month?* This field is required.

15 hours

15 min

10 hours

10 min

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The answer is:

15 minutes

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9. In a Nuchal Translucency measurement, what impact can a + 0.2-0.3mm error have?* This field is required.

No impact

20% increase in calculated Downs risk

65% increase in calculated Downs risk

100% increase in calculated Downs risk

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The answer is:

100% increase in calculated Downs risk.

Calliper accuracy is very important for clinical use. Callipers should be checked as part of Acceptance/Baseline Ultrasound QA testing.

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10. What percentage of faults are found during clinical use?* This field is required.

2%

7%

37%

86%

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The answer is: Only 7% of faults are found during clinical use.

Hangiandreou et al. found in a “Four-Year Experience with a Clinical Ultrasound Quality Control Program” that only 7% of probe failures were detected in clinical use.

Thank you for completing the quiz.

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