CET Echocardiography Imaging Techniques 2

Question 1

Which transducer frequency range is most commonly used for adult transthoracic echocardiography?

Accepted Answer

2-4 MHz

Answer

Adult TTE typically uses 2-4 MHz transducers to balance penetration depth with adequate resolution for cardiac structures.

Question 2

In tissue harmonic imaging, the ultrasound system processes which returning frequency to create the image?

Accepted Answer

Second harmonic (2× transmit frequency)

Answer

Tissue harmonic imaging uses the second harmonic frequency generated by nonlinear propagation through tissue, improving signal-to-noise ratio and reducing artifacts.

Question 3

When imaging a patient with a poor acoustic window, which maneuver can improve transthoracic image quality?

Accepted Answer

Positioning the patient in the left lateral decubitus position

Answer

Left lateral decubitus positioning moves the heart closer to the chest wall and displaces lung tissue, substantially improving acoustic access.

Question 4

Which imaging mode provides a single-dimension, time-motion recording of cardiac structures and is ideal for precise timing of events?

Accepted Answer

M-mode

Answer

M-mode (motion mode) displays a single line of information over time, offering excellent temporal resolution for measuring wall motion and valve timing.

Question 5

The acoustic shadow artifact seen posterior to a heavily calcified aortic valve is caused by:

Accepted Answer

Complete attenuation of the ultrasound beam by the dense structure

Answer

Calcified structures completely attenuate the ultrasound beam, preventing sound from reaching structures beyond, creating an acoustic shadow.

(CET) Certified Echocardiography Technician Practice Test

(CET) Certified Echocardiography Technician Practice Test

CET Echocardiography Imaging Techniques 2