Echocardiography Imaging Techniques Flashcards
7 cards from real CET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Echocardiography Imaging Techniques flashcards as text
Which echocardiographic view best demonstrates the relationship between the aortic valve, left ventricular outflow tract, and mitral valve simultaneously?
Answer: Parasternal long-axis view
The parasternal long-axis view displays the LVOT, aortic valve, mitral valve, and posterior wall in one plane, making it ideal for assessing outflow tract anatomy and aortic root dimensions.
Biplane Simpson's method of discs is used in echocardiography to calculate:
Answer: Left ventricular ejection fraction
The biplane Simpson's (modified Simpson's) method divides the LV into stacked discs from apical four- and two-chamber views to calculate end-diastolic and end-systolic volumes, from which EF is derived.
During a TEE examination, rotating the multiplane angle from 0° to approximately 45-60° from a mid-esophageal position typically yields which view?
Answer: Mid-esophageal aortic valve short-axis view
Rotating the multiplane angle to 45-60° in the mid-esophageal position brings the aortic valve into a short-axis view, displaying all three cusps.
What is the primary purpose of applying a low wall filter (high-pass filter) setting in spectral Doppler echocardiography?
Answer: To suppress low-frequency, high-amplitude signals from moving cardiac walls
The wall filter (high-pass filter) removes high-amplitude, low-frequency signals generated by moving myocardial walls to allow clear visualization of blood flow velocities.
In echocardiography, which imaging artifact is characterized by a bright echo appearing on the far side of a fluid-filled structure (e.g., a cyst or pericardial effusion) due to reduced attenuation?
Answer: Posterior acoustic enhancement (through-transmission)
Posterior acoustic enhancement occurs because fluid attenuates the ultrasound beam less than surrounding tissue, causing structures beyond the fluid to appear abnormally bright.
Which echocardiographic technique involves delivering a high-intensity ultrasound pulse to destroy microbubbles in the myocardium and then observing their replenishment to assess myocardial perfusion?
Answer: Myocardial contrast echocardiography (MCE) with flash destruction
MCE flash destruction uses a high-energy pulse to burst intramyocardial microbubbles; the rate of replenishment reflects regional myocardial perfusion.
The right parasternal acoustic window in echocardiography is most clinically valuable for obtaining which Doppler measurement?
Answer: High-velocity aortic stenosis jet using continuous-wave Doppler
The right parasternal window often provides the most parallel angle to the ascending aortic jet in aortic stenosis, enabling accurate peak velocity measurement by CW Doppler.