Mesenteric Vascular OcclusionMesenteric Artery, SuperiorReperfusion InjuryMesenteric ArteriesSuperior Mesenteric Artery SyndromeIntestinesCeliac ArteryMesenteric Artery, InferiorRetinal Artery OcclusionDuodenostomySplanchnic CirculationArteriesArterial Occlusive DiseasesInfarction, Middle Cerebral ArteryRenal ArterySplenic ArteryMesenteric VeinsAngiographyCerebral ArteriesTomography, X-Ray ComputedIschemiaHepatic ArteryDuodenal ObstructionBrain IschemiaAneurysmVasodilationVasoconstrictionRats, WistarConstriction, PathologicPulmonary ArteryRats, Sprague-DawleyFemoral ArteryBasilar ArteryTreatment OutcomeRenal VeinsTime FactorsConstrictionMuscle, Smooth, VascularRegional Blood FlowJejunostomyCarotid Artery, InternalStentsReperfusionIliac ArteryUltrasonography, DopplerVasoconstrictor AgentsCarotid ArteriesCoronary OcclusionAneurysm, DissectingBlood Vessel Prosthesis ImplantationVisceraVascular Surgical ProceduresVasodilator AgentsDisease Models, AnimalCerebral InfarctionBlood PressureAbdominal PainBlood Flow VelocityDogsIntestine, SmallAorta, AbdominalEndothelium, VascularAneurysm, FalseVertebral ArteryEmbolization, TherapeuticCerebral Arterial DiseasesEndovascular ProceduresCarotid Artery DiseasesLigation