This volume is a comprehensive review of current endovascular techniques for the treatment of cerebral aneurysms. It is intended to be a practical manual for those practising, or intending to practise, this branch of minimally-invasive surgery. The authors provide descriptions based on an extensive combined experience of clinical management, technical problems, complications and recent results. The limitations and role of combined extravascular/endovascular techniques are discussed to give a review of this topic.