1. From the Stroke and Neurovascular Regulation Laboratory, Department of Radiology (K.E.-H., J.H.L., I.Y., Z.Z., H.K.S., Y.Z., T.Q., C.W., M.A.M., C.A.), Athinoula A. Martinos Center for Biomedical Imaging and Transcript Imaging and NeuroRepair Laboratory, Division of Neuroradiology (C.H.L.), and Stroke Service and Neuroscience Intensive Care Unit, Department of Neurology (C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown; Department of Radiology, Affiliated Hospital of Guilin...