Mechanical thrombectomy, or simply thrombectomy, is the interventional procedure of removing a blood clot (thrombus) from a blood vessel. It is commonly performed in the cerebral arteries (interventional neuroradiology). The effectiveness of thrombectomy was confirmed in several randomised clinical trials conducted at various medical centers throughout the United States. Notable physicians involved in the approval of thrombectomy include , , , , Elad Levy , and .