Moyamoya DiseaseCerebral RevascularizationCerebral AngiographyAngiographyMagnetic Resonance AngiographyAngiography, Digital SubtractionCoronary AngiographyCerebral ArteriesMeningeal ArteriesTemporal ArteriesCarotid Artery, InternalMeningesTomography, X-Ray ComputedCerebral HemorrhageTomography, Emission-Computed, Single-PhotonCircle of WillisCerebrovascular CirculationArterial Occlusive DiseasesIntracranial AneurysmMiddle Cerebral ArteryPosterior Cerebral ArteryCollateral CirculationPhotophobiaCerebral InfarctionIschemic Attack, TransientAnastomosis, SurgicalFluorescein AngiographyIntracranial HemorrhagesCarotid Artery, ExternalNeurosurgical ProceduresAneurysm, RupturedBrain IschemiaCerebral Arterial DiseasesCarotid Arteries