FRCR FRCR Interventional Radiology 3

Question 1

Cryoablation causes tissue destruction through:

Accepted Answer

Repeated freeze-thaw cycles causing intracellular ice crystal formation and membrane disruption

Answer

Radiofrequency resistive heating

Answer

Chemical sclerosis

Answer

Mechanical disruption

Question 2

Which artery is the standard access vessel for coronary angiography via the radial approach?

Accepted Answer

Radial artery

Answer

Ulnar artery

Answer

Brachial artery

Answer

Axillary artery

Question 3

In vertebroplasty and kyphoplasty, which material is injected into the vertebral body?

Accepted Answer

Polymethylmethacrylate (PMMA) bone cement

Answer

Calcium phosphate paste

Answer

Fibrin glue

Answer

Gelfoam slurry

Question 4

The ankle-brachial index (ABI) value indicating severe peripheral arterial disease is:

Accepted Answer

Less than 0.4

Answer

0.5–0.9

Answer

1.0–1.2

Answer

Greater than 1.3

Question 5

Which embolic agent is used for emergency embolization of a traumatic splenic laceration in a hemodynamically stable patient?

Accepted Answer

Coils or Gelfoam (gelatin sponge)

Answer

Large PVA particles

Answer

Absolute ethanol

Answer

NBCA glue

Question 6

Which imaging-guided biopsy approach is preferred for a posterior mediastinal mass adjacent to the spine?

Accepted Answer

CT-guided posterior approach

Answer

Ultrasound-guided intercostal approach

Answer

Endobronchial ultrasound (EBUS)

Answer

Surgical open biopsy only