Table 1b.

Key discoveries and technological developments in interventional radiology

Authors, Year	Discoveries and technological developments
Dotter and Judkins, 1964	Angioplasty
Dotter et al., 1966	Nonsurgical treatment of iliofemoral arteriosclerotic obstruction
Judkins, 1967	Judkins technique of coronary angiography (technique currently most widely used internationally)
Newton and Adams., 1968 Doppman et al., 1971	Non-surgical embolization of spinal cord angioma and spinal cord malformations
Dotter, 1969 Dotter et al., 1983	Catheter-delivered stents
Dotter et al., 1966 Judkins et al, 1967 Judkins et al, 1968	Tools for interventions: heparinized (to prevent clotting) guidewires, contrast injector, disposable catheter needles
Leary and Parshall, 1972	Percutaneous removal of common bile duct stones
	Occlusive coils for blocking blood flow
Rösch et al., 1972	Selective arterial embolization for gastrointestinal bleeding: technique was adapted to treat massive arterial bleeding at other anatomic sites and to block blood supply to tumors
Dotter et al., 1974	Selective arterial thrombolysis for arterial occlusions; technique was adapted to treat blood clots, stroke, deep vein thrombosis, and other forms of venous and arterial occlusions
Grüntzig, 1976	first successful balloon dilatations of coronary arteries
Okamura J, 1983	Chemo-embolization to treat hepatocellular cancer and disseminated liver metastases
Rösch et al., 1969 Colapinto et al, 1983 Richter et al, 1989	Transjugular intrahepatic portosystemic shunt, experimental development and human interventions with stents
Palmaz et al, 1985	Balloon-expandable peripheral stent used today
Cope et al, 1990	Percutaneous extraction of gallbladder stone
Goldberg et al, 1997	Radio-frequency ablation technique for liver tumors; technique was adapted to treat bone, breast, kidney, lung, and liver cancer
Weimar et al, 1999	Percutaneous delivery of pancreatic islet cells transplanted to the liver to treat diabetes
Navarro et al, 2001	Endovenous laser ablation procedure to treat varicose veins and venous disease

Sources: Rösch J et al. J Vasc Interv Radiol 2003;14:841–53. Society of Interventional Radiology History of Interventional Radiology www.sirweb.org/about-us/historyIR.shtml