1. From the Departments of Neuro-Interventional Surgery (F.A.-A.) and Research (J.J.E.), Akron General Medical Center, OH; Department of Radiology, University of Cincinnati Academic Health Center, OH (T.A.T.); Neurovascular Imaging Research Core & UCLA Department of Neurology, Los Angeles, CA (D.S.L.); and Department of Neurology, University of Cincinnati Academic Health Center, OH (J.P.B.).