FE Imaging Techniques & Protocols 3

Question 1

Which scan plane in fetal echocardiography demonstrates both great arteries crossing each other in their normal relationship?

Accepted Answer

Short-axis view at the great vessel level

Answer

The short-axis view at the level of the great vessels shows the pulmonary artery wrapping around the circular aortic root, demonstrating their normal crossing relationship.

Question 2

In the three-vessel and trachea (3VT) view, the normal left-to-right arrangement of structures from the fetal perspective is:

Accepted Answer

Pulmonary artery, aorta, superior vena cava

Answer

In the standard 3VT view, from the fetal left to right the order is pulmonary artery (largest), aorta, then superior vena cava (smallest).

Question 3

Which imaging artifact can mimic a ventricular septal defect (VSD) on 2D echocardiography?

Accepted Answer

Dropout artifact due to beam parallel to the septum

Answer

Dropout artifact occurs when the ultrasound beam strikes a tissue interface at a perpendicular angle, causing apparent absence of the septum and mimicking a VSD.

Question 4

Tissue Doppler imaging (TDI) in fetal echocardiography primarily measures:

Accepted Answer

Myocardial wall motion velocities

Answer

TDI uses low-velocity, high-amplitude Doppler shifts to quantify myocardial wall motion velocities rather than blood flow.

Question 5

When should harmonic imaging be preferred over fundamental imaging in fetal echocardiography?

Accepted Answer

In patients with technically difficult windows, such as posterior placenta or increased BMI

Answer

Harmonic imaging improves endocardial border definition and reduces clutter in technically challenging patients by using second-harmonic frequencies.

(FE) Fetal Echocardiography Certification Practice Test

(FE) Fetal Echocardiography Certification Practice Test

FE Imaging Techniques & Protocols 3