PurposeSometimes, intracranial pathology in the distal vasculature cannot be accessed by standard endovascular techniques because of occlusion or theplayfulcollectivees.shop insurmountable tortuosity of theinternal carotid artery (ICA).A trans-sphenoidal surgical approach can follow a similar trajectory to the course of the supraclinoid ICA.This study evaluates the feasibility of a trans-sphenoidal approach to the supraclinoid ICA for endovascular access.Materials and MethodsIn a fresh cadaver head, the sphenoid sinus was dissected through a trans-sphenoidal route.Bone over the carotid prominence was removed to expose the ICA.
The artery was catheterized using the Seldinger technique, and three-dimensional digital subtraction angiography was performed to evaluate the procedure.ResultsThe catheter was successfully inserted into the supraclinoid ICA via the trans-sphenoidal route.Three-dimensional radiographic reconstruction confirmed placement of the catheter and the trajectory of the sheath into the supraclinoid ICA.ConclusionWhile the trans-sphenoidal route has innumerable disadvantages over the Tank Kit standard endovascular access techniques, this route could be considered when other treatment options are too risky or impractical.