Echocardiogram Echocardiograms Echocardiographic Techniques 3

Question 1

Tissue Doppler imaging (TDI) measures:

Accepted Answer

Myocardial wall motion velocities

Answer

TDI uses low-velocity, high-amplitude Doppler signals from myocardial tissue rather than blood to assess wall motion.

Question 2

Which parameter is calculated using the continuity equation in echocardiography?

Accepted Answer

Aortic valve area

Answer

The continuity equation (AVA = LVOT area × LVOT VTI / AV VTI) is the standard method for calculating aortic valve area.

Question 3

To optimize a parasternal long-axis view, the sonographer should rotate the transducer marker toward the:

Accepted Answer

Patient's right shoulder

Answer

In the parasternal long-axis view, the transducer marker is oriented toward the right shoulder (approximately 10 o'clock position).

Question 4

Speckle tracking echocardiography (STE) is used primarily to assess:

Accepted Answer

Myocardial deformation (strain and strain rate)

Answer

STE tracks natural acoustic markers (speckles) frame-to-frame to quantify myocardial strain, providing angle-independent deformation analysis.

Question 5

Increasing the depth setting on an echocardiographic system will:

Accepted Answer

Decrease the frame rate

Answer

Greater depth requires longer time for ultrasound pulses to travel and return, reducing the number of frames per second.

(Echocardiogram) Certified Echocardiogram Technician Practice Test