Anterior Spinal Artery SyndromeMesenteric Artery, InferiorColicInfarctionVertebral ArterySpinal CordArteriesMesenteric ArteriesHypesthesiaAngiographySpinal Cord Vascular DiseasesMesenteric Artery, SuperiorParaplegiaRenal ColicMagnetic Resonance ImagingPulmonary ArterySpineSpinal Cord DiseasesRenal ArteryCarotid ArteriesSpinal FusionCerebral ArteriesFemoral ArteryBasilar ArteryVertebral Artery DissectionCeliac ArterySpinal DiseasesIliac ArterySpinal Cord InjuriesSubarachnoid HemorrhageAneurysm, RupturedCoronary Artery BypassScoliosisThoracic VertebraeThoracoscopesRadial ArteryMammary ArteriesSplenic ArteryCarotid Artery, InternalTuberculosis, SpinalMesenteric Vascular OcclusionSpinal Cord IschemiaSubclavian ArteryVasodilationHepatic ArteryMuscle, Smooth, VascularSuperior Mesenteric Artery SyndromeVasoconstrictionCarotid Artery DiseasesTomography, X-Ray ComputedKyphosisBrachial ArteryEndoscopesTreatment OutcomeChylous AscitesCoronary VesselsCarotid Artery, CommonLaminectomyVasodilator AgentsOphthalmic ArteryEndothelium, VascularVasoconstrictor AgentsThoracoscopyRenal Artery ObstructionDiskectomyUmbilical ArteriesMiddle Cerebral ArteryThoracic ArteriesPostoperative ComplicationsFecal ImpactionDecompression, SurgicalSplanchnic CirculationTemporal ArteriesInternal FixatorsBiological FactorsCervical VertebraeBronchial ArteriesTime Factors