Clinical laboratory

Question 1

How often should quality assurance reviews be performed in the clinical ultrasound laboratory?

Answer 1

All ultrasound laboratories should conduct performance checks on all ultrasound equipment at regular intervals. These routine performance reviews help assure consistent and accurate performance of the ultrasound equipment

Question 2

Describe the components of the AIUM 100 mm test object

Answer 2

The AIUM 100 mm test object is commonly used for quality assurance checks. The test object consists of perspex (clear plastic) sides, water, alcohol, algae inhibitor and stainless steel metal rods

Question 3

Explain the difference between a test object and a tissue phantom

Answer 3

The test object varies from the tissue phantom in that the tissue phantom closely simulates the attenuation and scattering characteristics of soft tissue better than the test object

Question 4

Define the term acoustic exposure

Answer 4

The amount of ultrasound energy delivered to the patient. It depends upon acoustic pressure, amplitude, power, and intensity