CSC Technology & Digital Applications 2

Question 1

Which CT acquisition strategy best minimizes radiation dose in cardiac CT angiography while maintaining diagnostic image quality?

Accepted Answer

Tube voltage reduction combined with iterative reconstruction

Answer

Reducing tube voltage (e.g., 100 kVp) lowers radiation dose, and iterative reconstruction algorithms compensate for the resulting increase in image noise.

Question 2

In cardiac MRI, which sequence is considered the gold standard for assessing myocardial viability?

Accepted Answer

Late gadolinium enhancement (LGE)

Answer

LGE detects gadolinium accumulation in fibrotic or infarcted myocardium, making it the gold standard for viability assessment.

Question 3

The primary benefit of attenuation correction in SPECT myocardial perfusion imaging is to:

Accepted Answer

Reduce false-positive defects caused by soft tissue attenuation artifacts

Answer

Attenuation correction reduces artifactual perfusion defects caused by breast or diaphragm attenuation, improving specificity.

Question 4

Compared to 2D biplane Simpson's method, 3D full-volume echocardiographic LVEF measurement offers which primary advantage?

Accepted Answer

Better agreement with cardiac MRI due to elimination of geometric assumptions

Answer

3D full-volume LVEF does not rely on geometric assumptions about ventricular shape, yielding better correlation with cardiac MRI reference values.

Question 5

Intravascular ultrasound (IVUS) is most clinically useful for which purpose during percutaneous coronary intervention?

Accepted Answer

Optimizing stent deployment and confirming full stent apposition

Answer

IVUS provides cross-sectional images of the vessel lumen and wall, allowing assessment of stent expansion, apposition, and detection of edge dissections.

CSC - Cardiac Subspecialty Certification Exam Practice Test

CSC - Cardiac Subspecialty Certification Exam Practice Test

CSC Technology & Digital Applications 2