Which technique utilizes a guidewire for placement of a catheter?

The Seldinger technique is fundamental in various medical procedures, particularly for the placement of catheters. This technique involves the use of a guidewire, which is first inserted into the vascular system or desired anatomical site through a small puncture. Once the guidewire is in place, a catheter is threaded over the wire and into the appropriate position. This method allows for greater precision and safety during catheter placement, reducing the risk of complications that can occur with direct placement of the catheter itself.

The Seldinger technique is widely used in interventional radiology, vascular access, and various other procedures, making it a cornerstone technique in these areas. Its effectiveness in facilitating catheter introductions through a minimally invasive approach is what sets it apart from other techniques that do not utilize a guidewire for placement.