Sven-Ivar Seldinger

Sven-Ivar Seldinger was a Swedish cardiologist who developed a key technique in medical imaging. He is credited with developing the Seldinger technique, a method for inserting a catheter into blood vessels or organs. This technique involves using a needle to puncture the vessel, inserting a coiled wire through the needle, and then sliding a catheter over the wire. The needle and wire are then removed, leaving the catheter in place for procedures like angiography.1

Angiography is a diagnostic imaging procedure that uses a contrast agent and X-rays to examine arteries and veins. This allows doctors to visualize blood vessels and diagnose conditions such as blockages or stenosis. Seldinger's technique revolutionized diagnostic procedures, particularly in cardiology, by providing a safer and more effective way to access and visualize the vascular system.12