1. From the Department of Interventional Neuroradiology (B.L., X.Y., Ying Z., Yisen Z., S.M.), Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Beijing, China; Department of Mechanics and Engineering Science (S.W., J.C., G.D.), Fudan University, Shanghai, China; Department of Biomedical Engineering (H.L., H.Y., Z.L.), Capital Medical University, Beijing, China.