WSS at the aneurysm initiation site: Vascular models

Surface mesh representations of part of the cerebral vasculature. Data belongs to a study aimed at characterizing the WSS at the aneurysm initiation site. Twenty patients, ten cases and ten controls, were drawn from a large multicenter database created within the @neurIST*. The cases were all the patients in the database with an aneurysm on the A1 segment of the anterior cerebral artery (ACA-A1). They were selected because of their remarkable consistency in location: all aneurysms were just distal to the internal carotid artery (ICA) bifurcation with nine cases directed posteriorly and one case directed anteriorly (case 10). Moreover, the location was neither a bifurcation apex nor the outer wall of a vascular bend, which -- attributed to being high WSS regions -- are the most common aneurysm locations. The controls were patients with an aneurysm at the middle cerebral artery (MCA) bifurcation, hence predisposed to having aneurysms, that did not form an aneurysm at the same location as the cases. They were selected to match cases by patient age (within 2 years) and aneurysm hemisphere (left or right). No other information was considered during the selection process. case1_aneurysm.vtp etc. are the 10 cases with aneurysm. case1.vtp etc. are the 10 cases with the aneurysm virtually removed. control1.vtp etc. are the 10 controls. *@neurIST was a project funded by the European Commission (FP6-IST-027703), which ran from Jan 2006 till Mar 2010. Find more information on www.aneurist.org Contact: [e-mail] (Arjan Geers) [e-mail] (Alejandro Frangi)