Cerebral AngiographyCoronary AngiographyCoronary VesselsAngiographyMagnetic Resonance AngiographyCoronary Artery DiseaseAngiography, Digital SubtractionCerebral ArteriesCoronary CirculationIntracranial AneurysmCerebral InfarctionTomography, X-Ray ComputedSubarachnoid HemorrhageIntracranial Arteriovenous MalformationsAngioplasty, Balloon, CoronaryCoronary StenosisCoronary Artery BypassCerebrovascular CirculationCerebral VeinsCranial SinusesCoronary DiseaseVertebral ArteryCarotid Artery, InternalMoyamoya DiseaseCerebral HemorrhagePosterior Cerebral ArteryCerebrovascular DisordersIschemic Attack, TransientCircle of WillisCentral Nervous System Vascular MalformationsAneurysm, RupturedMiddle Cerebral ArteryBrain IschemiaMagnetic Resonance ImagingCoronary VasospasmArterial Occlusive DiseasesFluorescein AngiographyIntracranial Embolism and ThrombosisCerebral RevascularizationBasilar ArteryVasospasm, IntracranialContrast MediaEmbolization, TherapeuticTreatment OutcomeProspective StudiesCollateral CirculationCerebral Arterial DiseasesBlood Flow VelocityCoronary AneurysmCarotid Artery DiseasesAnterior Cerebral ArteryCerebral PalsyCarotid StenosisFollow-Up StudiesMyocardial InfarctionVasculitis, Central Nervous SystemRisk FactorsBrainTime FactorsCoronary ThrombosisVertebrobasilar InsufficiencyIntracranial ArteriosclerosisSinus Thrombosis, IntracranialSensitivity and SpecificityArteriovenous FistulaCoronary RestenosisCarotid ArteriesEndarterectomyConstriction, PathologicBlindness, CorticalRetrospective StudiesCraniotomyEpilepsy, Tonic-ClonicArteriovenous MalformationsIntracranial EmbolismCoronary OcclusionStentsNeurologic ExaminationPredictive Value of TestsNeurosurgical ProceduresHematoma, SubduralPercutaneous Coronary InterventionCranial Fossa, AnteriorInfarction, Middle Cerebral ArteryCarotid-Cavernous Sinus FistulaRadial ArteryCavernous SinusVertebral Artery DissectionElectrocardiographySurgical InstrumentsRupture, SpontaneousRecurrenceMalaria, CerebralTemporal ArteriesUltrasonography, InterventionalHematoma, Subdural, IntracranialCatheterizationRadionuclide AngiographyTomography, Spiral ComputedStroke