Endovascular Therapy for Intracranial Aneurysms
Endovascular therapy for saccular intracranial aneurysms of the posterior cerebral circulation, and for other intracranial aneurysms whose surgical ligation and clipping would pose great technical difficulty or be medically contraindicated, is considered medically necessary. Endovascular therapy for intracranial aneurysms or pseudoaneurysms whose location and morphology would allow relatively simple surgical ligation and clipping is considered investigational. Definitive patient selection criteria for endovascular therapy for intracranial aneurysms and pseudoaneurysms have not been established.