What is a characteristic feature of guidewires used in interventional procedures?

Guidewires are designed with a characteristic feature where the core wire's tip is surrounded by a flexible coil. This design allows for greater maneuverability and control within complex vascular or anatomical pathways during interventional procedures. The flexibility of the coil at the tip facilitates navigation around tighter curves and bifurcations, reducing the risk of vessel perforation or injury. Additionally, having a flexible tip enhances the guidewire's ability to adapt to variable anatomy, making it easier for clinicians to reach desired target sites effectively.

The flexibility of the coil is critical because it helps to minimize the risks associated with pushing or manipulating the guidewire, which is especially important in delicate and intricate vascular systems. This characteristic is a key aspect of the overall functionality of guidewires in interventional radiology, making them an essential tool for various procedures.