with the title of Docent in Radiology in 1967 after successfully defending his thesis on percutaneous transhepatic cholangiography. He was later able to demonstrate, using "phantom experiments", how one could insert a catheter into the femoral artery and reach both the parathyroid and renal arteries.

In 1975, the New York Academy of Medicine awarded Seldinger the Valentine award. The Swedish Association of Medical