Interventional radiology is a subspecialty of diagnostic radiology that uses minimally invasive techniques performed under imaging guidance. Interventional radiology has its roots in angiography, which is the radiologic examination of blood vessels after the introduction of a contrast medium that allows them to be imaged. Going forward, the collaboration between human and veterinary interventional radiologists will persist as a two-way street and will continue to innovate together and learn from each other and from the patients.