What is one of the core materials used in the construction of guidewires?

Nitinol is a key material utilized in the manufacturing of guidewires due to its unique properties. It is a nickel-titanium alloy known for its excellent elasticity and ability to return to its original shape after deformation. This characteristic is particularly beneficial in interventional procedures, where flexibility and the ability to navigate through complex vascular structures are essential.

In addition to flexibility, nitinol also has a superelastic behavior, which means that it can withstand substantial bending and twisting forces without breaking. This is critical during the insertion and manipulation of guidewires, especially in cases where precise navigation is required through intricate or tortuous anatomy. Furthermore, nitinol has biocompatibility, making it suitable for use inside the human body.

The combination of these properties makes nitinol a preferred choice for guidewire construction in interventional radiology, as it enhances the efficiency and safety of various procedures.