What is the role of ultrasound in interventional radiology?

• A. To produce images of the heart only
• B. For guidance during needle placements and catheter insertions
• C. To visualize blood flow in real-time
• D. For monitoring patient recovery

Answer: (B)

Ultrasound plays a crucial role in interventional radiology primarily as a guidance tool during needle placements and catheter insertions. This imaging modality allows practitioners to visualize the target area in real-time, ensuring accurate positioning of instruments during procedures such as biopsies, abscess drainages, and vascular access.

The ability to see anatomical structures and their relationship to surrounding tissues helps in reducing complications and improving the success rate of various interventional procedures. Ultrasound guidance provides clear and immediate feedback, enhancing the safety and precision of the interventions, thereby facilitating better patient outcomes.

While ultrasound can also provide some visualization of blood flow and assist in monitoring, its principal function in this specific context is focused on aiding the clinician in accurately placing needles and catheters.