CVT CVT Cardiac Imaging & Nuclear Cardiology 2

Question 1

A 'reversible defect' on myocardial perfusion imaging (MPI) is consistent with:

Accepted Answer

Stress-induced ischemia

Answer

A reversible perfusion defect (abnormal on stress, normal on rest) indicates viable but ischemic myocardium that is inadequately perfused during increased demand.

Question 2

Which view in cardiac CT or MRI best demonstrates the four cardiac chambers simultaneously?

Accepted Answer

Four-chamber view

Answer

The four-chamber view displays the left and right atria and ventricles simultaneously, allowing assessment of chamber sizes, wall motion, and valvular anatomy.

Question 3

PET (positron emission tomography) myocardial viability imaging uses which tracer to assess myocardial metabolic activity?

Accepted Answer

F-18 FDG (fluorodeoxyglucose)

Answer

F-18 FDG PET measures glucose metabolism; viable but hibernating myocardium retains metabolic activity (FDG uptake) despite reduced perfusion, indicating potential for recovery.

Question 4

Which artifact commonly occurs in nuclear cardiac imaging due to the left breast in female patients?

Accepted Answer

Breast attenuation artifact

Answer

Breast tissue attenuates gamma rays in SPECT imaging, causing apparent perfusion defects in the anterior wall that can mimic ischemia or infarction.

Question 5

Cardiac magnetic resonance imaging (CMR) is considered the gold standard for assessing:

Accepted Answer

Right ventricular volumes and function

Answer

CMR provides superior spatial resolution and tissue characterization, making it the gold standard for quantifying right ventricular volumes, ejection fraction, and function.

(CVT) Cardiovascular Technologist Certification Practice Test

(CVT) Cardiovascular Technologist Certification Practice Test

CVT CVT Cardiac Imaging & Nuclear Cardiology 2