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In this work, the effectiveness of the superselective embolization of the arteries feeding the tumor prior to performing partial nephrectomy (open and laparoscopic) was evaluated. The results received show that this method can prevent long-term thermal ischemia of the normal renal parenchyma, and make it possible to perform resection in cases of complex vascular anatomy, when the mobilization of the renal artery and, moreover, segmental vessels is technically difficult or impossible, and in the third, Zero ischemia leads to decrease of intraoperative blood loss. The necessity of performing preoperative three-dimensional modeling of the pathological process is indicated in order to identify nephrometric indicators according to the R.E.N.A.L. scale.