FE Imaging Techniques & Protocols 2

Question 1

Which transducer frequency range is most appropriate for fetal echocardiography in a patient with a BMI >35?

Accepted Answer

2–4 MHz

Answer

Lower frequencies (2–4 MHz) provide better tissue penetration in obese patients despite reduced resolution.

Question 2

The ISUOG guideline recommends obtaining a fetal echocardiogram at what gestational age for optimal image quality?

Accepted Answer

18–22 weeks

Answer

18–22 weeks is the standard window recommended by ISUOG for detailed fetal cardiac evaluation.

Question 3

When performing fetal echocardiography, which view is obtained by rotating the transducer 90° from the four-chamber view toward the fetal left shoulder?

Accepted Answer

Long-axis left ventricular outflow tract view

Answer

Rotating 90° from the four-chamber view toward the fetal left shoulder yields the long-axis LVOT view showing the aortic root.

Question 4

In color Doppler imaging during fetal echocardiography, aliasing artifacts indicate that flow velocity exceeds which parameter?

Accepted Answer

Nyquist limit

Answer

Aliasing occurs when detected velocities exceed the Nyquist limit, causing color wrap-around from one end of the scale to the other.

Question 5

Which M-mode measurement is used to calculate the cardiothoracic ratio in fetal echocardiography?

Accepted Answer

Maximum cardiac diameter compared to thoracic diameter at the same level

Answer

The cardiothoracic ratio is obtained by dividing the maximal cardiac diameter by the thoracic diameter measured in the same transverse plane.

(FE) Fetal Echocardiography Certification Practice Test

(FE) Fetal Echocardiography Certification Practice Test

FE Imaging Techniques & Protocols 2