Echocardiogram Testing and Quality Assurance 4

Question 1

When a QA test reveals that lateral resolution has significantly worsened compared to the baseline, the most appropriate initial action is:

Accepted Answer

Check transducer element integrity and contact the service engineer

Answer

Worsened lateral resolution often indicates transducer element failure; the transducer should be inspected and a service engineer contacted before continued patient use.

Question 2

Which QA test specifically evaluates the accuracy of M-mode measurements in an echocardiography system?

Accepted Answer

Distance accuracy test using known target spacings in a phantom

Answer

M-mode measurement accuracy is verified by imaging phantom targets with precisely known distances and comparing the system's caliper measurements to the known values.

Question 3

What is the significance of 'beam uniformity' testing in echocardiography QA?

Accepted Answer

It verifies that the ultrasound beam intensity is consistent across the transducer face

Answer

Beam uniformity testing confirms that all elements of the transducer contribute evenly, ensuring consistent image quality without band artifacts from dead elements.

Question 4

A hospital's echocardiography QA program requires logging all equipment malfunctions. What is the PRIMARY reason for maintaining this malfunction log?

Accepted Answer

To identify recurring problems and track equipment reliability over time

Answer

A malfunction log helps identify patterns of recurring problems, supporting timely maintenance decisions and tracking long-term equipment reliability.

Question 5

Which of the following phantom characteristics is essential for evaluating tissue mimicking properties in echocardiography QA?

Accepted Answer

A phantom with a speed of sound of approximately 1540 m/s and realistic attenuation

Answer

Tissue-mimicking phantoms must have a speed of sound near 1540 m/s and attenuation coefficients similar to soft tissue to accurately replicate clinical imaging conditions.

(Echocardiogram) Certified Echocardiogram Technician Practice Test

(Echocardiogram) Certified Echocardiogram Technician Practice Test

Echocardiogram Testing and Quality Assurance 4