Echocardiography MCQs

 

 

Attempt the MCQs given in the above Video and score yourself out of 10

Here are more MCQs to practice: (Answers given in the end)

1. Which echocardiographic modality is most suitable for assessing the hemodynamic significance of coronary artery disease by visualizing myocardial perfusion?
   a) Strain echocardiography
   b) Contrast echocardiography
   c) Intracardiac echocardiography
   d) Three-dimensional echocardiography

2. Which Doppler echocardiographic parameter is commonly utilized to quantify the severity of aortic stenosis?
   a) Peak systolic velocity
   b) E-wave deceleration time
   c) E/e' ratio
   d) Transmitral pressure gradient

3. Which echocardiographic technique is preferred for assessing left ventricular dyssynchrony in patients with heart failure?
   a) Tissue Doppler imaging
   b) Speckle tracking echocardiography
   c) Intravascular ultrasound
   d) Intracardiac echocardiography

4. In stress echocardiography, which pharmacological agent is commonly used to induce myocardial ischemia in patients unable to exercise adequately?
   a) Adenosine
   b) Atropine
   c) Dobutamine
   d) Nitroglycerin

5. Which echocardiographic finding is suggestive of constrictive pericarditis rather than restrictive cardiomyopathy?
   a) Increased left ventricular wall thickness
   b) Rapid early diastolic filling
   c) Respiratory variation in mitral inflow velocities
   d) Elevated left ventricular end-diastolic pressure

6. Which echocardiographic technique allows for the assessment of myocardial viability by evaluating the contractile reserve of dysfunctional myocardium?
   a) Contrast echocardiography
   b) Strain echocardiography
   c) Transesophageal echocardiography
   d) Intravascular ultrasound

7. In which cardiac condition might echocardiography reveal the presence of a "jet lesion" indicative of ventricular septal defect?
   a) Dilated cardiomyopathy
   b) Hypertrophic cardiomyopathy
   c) Atrial septal defect
   d) Restrictive cardiomyopathy

8. Which echocardiographic parameter is useful in distinguishing between restrictive and constrictive physiology in patients with unexplained heart failure with preserved ejection fraction?
   a) Pulmonary vein flow pattern
   b) Mitral annular velocity
   c) Tricuspid regurgitation velocity
   d) Left ventricular outflow tract velocity

9. Which advanced echocardiographic technique enables the visualization of myocardial microcirculation and is particularly useful in assessing myocardial ischemia?
   a) Myocardial contrast echocardiography
   b) Intravascular ultrasound
   c) Intracardiac echocardiography
   d) Tissue Doppler imaging

10. Which echocardiographic finding is suggestive of hypertrophic obstructive cardiomyopathy (HOCM)?
    a) Decreased left ventricular wall thickness
    b) Mid-systolic closure of the aortic valve
    c) Increased left ventricular outflow tract velocity
    d) Reduced left ventricular end-diastolic volume

 

ANSWERS & EXPLANATIONS:

 Here are the correct answers along with explanations:

1. b) Contrast echocardiography
   Explanation: Contrast echocardiography involves the use of microbubbles to enhance ultrasound imaging of myocardial perfusion, making it particularly suitable for assessing the hemodynamic significance of coronary artery disease.

2. a) Peak Systolic Velocity
   Explanation: The severity of aortic stenosis can be quantified using Doppler echocardiography, and one of the parameters commonly used is the peak systolic velocity, others being trans-aortic pressure gradient.

3. b) Speckle tracking echocardiography
   Explanation: Speckle tracking echocardiography is a technique used to assess left ventricular dyssynchrony by tracking myocardial deformation patterns, making it preferred for evaluating patients with heart failure.

4. c) Dobutamine
   Explanation: Dobutamine is commonly used as a pharmacological stress agent in stress echocardiography to induce myocardial ischemia in patients who are unable to exercise adequately.

5. c) Respiratory variation in mitral inflow velocities
   Explanation: Respiratory variation in mitral inflow velocities is a characteristic finding in constrictive pericarditis, whereas it is typically absent in restrictive cardiomyopathy.

6. b) Strain echocardiography
   Explanation: Strain echocardiography allows for the assessment of myocardial viability by measuring myocardial deformation, providing information about the contractile reserve of dysfunctional myocardium.

7. c) Atrial septal defect
   Explanation: A "jet lesion" indicative of a ventricular septal defect is commonly observed in patients with atrial septal defects, where blood jets from the high-pressure left ventricle to the low-pressure right ventricle.

8. a) Pulmonary vein flow pattern
   Explanation: The pulmonary vein flow pattern, particularly the presence of a systolic blunting pattern, is useful in distinguishing between restrictive and constrictive physiology in patients with unexplained heart failure with preserved ejection fraction.

9. a) Myocardial contrast echocardiography
   Explanation: Myocardial contrast echocardiography enables the visualization of myocardial microcirculation by using microbubbles, making it useful in assessing myocardial ischemia.

10. c) Increased left ventricular outflow tract velocity
    Explanation: Hypertrophic obstructive cardiomyopathy (HOCM) is characterized by increased left ventricular outflow tract velocity, resulting from dynamic obstruction of the left ventricular outflow tract during systole due to septal hypertrophy.

Happy Learning !!!

Now Practice these MCQs in the following Video and assess Yourself. Score Yourself out of 10 :-)

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