Topography of the medial loop of the internal carotid artery and posterior clinoid processes: transcavernous approach

Despite significant progress in the treatment of intracranial arterial aneurysms (AAs) using various endovascular methods (including stent-assisted coiling and balloon-assisted coiling, installation of flow-diverting stents, development of new microcatheters and microcoils, novel stenting techniques (such as jailed-catheter technique and trans-cell technique for arterial wall reconstruction and Y-stent&waffle-cone technique and X-stent technique for stenting AA bifurcations)) and the use of new endovascular techniques for hemodynamic remodeling in AAs (including WEB - device, PED - Pipeline Embolization Device), the results of endovascular AA occlusion assessed using the Raymond Montreal scale remain unsatisfactory (class II (residual neck), class III (residual AA), recanalizations and re-operations (CLARITY (2011), ATENA (2009), AHA (2015), ISAT (2009), CARAT (2008), BRAT (2012), BRAT-3 (2014)). Microsurgical clipping of AA ensures better aneurysm exclusion (Raymond class I) compared to endovascular treatment...