Basilar ArteryVertebrobasilar InsufficiencyCarotid Artery ThrombosisThrombosisMechanical ThrombolysisTomography, X-Ray ComputedFibrinolytic AgentsArteriesInfarction, Posterior Cerebral ArteryThrombolytic TherapyAcute DiseaseHepatic ArteryEpidermal CystVenous ThrombosisTreatment OutcomeVertebral ArteryCerebral ArteriesPosterior Cerebral ArteryCoronary ThrombosisPulmonary ArteryFemoral ArteryIntracranial ThrombosisCarotid ArteriesRenal ArteryInfarction, Middle Cerebral ArterySubarachnoid HemorrhageBrain Stem InfarctionsIntracranial Embolism and ThrombosisCerebral AngiographyArterial Occlusive DiseasesBleeding TimeLiver TransplantationVasospasm, IntracranialMesenteric ArteriesBrain IschemiaDogsVasodilationMagnetic Resonance ImagingVasoconstrictionCarotid Artery, InternalIntracranial AneurysmMuscle, Smooth, VascularIliac ArteryAngiographyCoronary Artery BypassThrombectomyUlnar ArteryRenal Artery ObstructionSinus Thrombosis, Intracranial