X-ray endovascular occlusion is a transcatheter blockage of a vessel, its embolization. For this purpose, an embolizing material is introduced through a catheter, which temporarily or permanently occludes the lumen of the vessel. Depending on the caliber of the vessel and the purpose of the procedure, platinum microparticles, microspheres with ferromagnetics, hemostatic gelatin sponge, metal spirals, oil emulsions are used.