Neurosurgery deals with complex critical anatomy in tight spaces, hidden by web-like membranes and sometimes bloody fields. To a neurosurgeon, the value of always knowing where you are and what is hidden is very high. Cerebral arteries and their branching patterns and segments are key landmarks, providing orientation in deep cerebral territory. This talk will provide a neurosurgeon’s perspective on seven key cerebral artery segments: Posterior Communicating Artery, Anterior Choroidal Artery, M1-M2 segments of the Middle Cerebral Artery, Anterior Communicating Artery, P1-P2 segments of the Posterior Communicating Artery, Basilar Artery, and Posterior Inferior Cerebellar Artery. Using 2D medical illustrations, 3D anatomical models, and cadaver dissections, the presentation will identify anatomical relationships, subarachnoid cisterns, surgical triangles, perforators, and segments related to these important vessels. Intraoperative surgical video of the treatment of aneurysms, arteriovenous malformations, bypasses and cavernous malformations will immerse participants in the challenges and beauty of neurosurgery. The presentation will include links to reference material for medical illustrators- outlines, illustrations, definitions, photos, and digital models and surgical video to provide views of living tissue and actual neurosurgical techniques.

Michael T. Lawton MD

Michael T. Lawton MD is the chairman of the Department of Neurological Surgery at the Barrow Neurological Institute, as well as its President and Chief Executive Officer and the Robert F. Spetzler Endowed Chair in Neurosciences. He is chief of vascular and skull base neurosurgery, specializing in the surgical treatment of aneurysms, arteriovenous malformations, arteriovenous fistulas, cavernous malformations, and cerebral revascularization, including carotid endarterectomy. As the leader of the largest cerebrovascular center in the US, he has experience in surgically treating over 4500 brain aneurysms and over 900 AVMs. He also practices skull base tumor surgery and the endovascular treatment of aneurysms. Dr. Lawton co-directs and conducts his research at the Barrow Aneurysm and AVM Research Center (BAARC), a collaborative research group funded by grants from the National Institutes of Health that investigates the physiology of cerebral circulation and the pathophysiology of vascular malformations. In addition to conducting a wide range of basic science and clinical research, he is the principle investigator of a NIH U54 grant and program director of the Brain Vascular Malformation Consortium (BVMC).He has published over 500 peer-reviewed articles, over 70 book chapters, and 6 textbooks, including Seven AVMs: Tenets and Techniques for Resection, Seven Bypasses: Tenets and Techniques for Revascularization, and Seven Aneurysms: Tenets and Techniques for Clipping. He has given over 800 invited lectures nationally and internationally, including visiting professorships at over 50 neurosurgical institutions. He has been active in resident teaching, directing the CNS Anatomy Course for Senior Residents, co-directing the AANS Vascular Skills Course, and directing industry-sponsored anatomy courses. Dr. Lawton co-founded Mission:BRAIN, a teaching mission to raise the level of neurosurgery practiced in developing countries, and has conducted 7 missions in Mexico and the Philippines.