Affiliation: | 1Department of Radiology, Albany Medical College, Albany, NY, USA;2Department of Radiology, University of Michigan Medical Center, TC 2910K, 1500 E Medical Center Dr, Ann Arbor, MI 48109-0030, USA;3Department Neurosurgery, University of Michigan Medical Center, TC 2910K, 1500 E Medical Center Dr, Ann Arbor, MI 48109-0030, USA |