Interventional neuroradiologists use minimally invasive techniques to diagnose and treat blood vessel conditions of the brain, head & neck and spine. Using endovascular techniques, the need for open surgery can often be avoided. Interventional neuroradiologists have completed extensive post-fellowship subspecialty training to ensure these procedures are performed in the safest way possible. Common conditions they treat include cerebral aneurysms, arteriovenous malformations, arteriovenous fistulae as well as many other vascular diseases.