Cholangiopancreatography, Endoscopic RetrogradeCholangiopancreatography, Magnetic ResonanceMagnetic Resonance ImagingCholedocholithiasisMagnetic Resonance SpectroscopySphincterotomy, EndoscopicPancreatitisBiliary Tract DiseasesPancreatic DuctsHyperamylasemiaCommon Bile DuctCommon Bile Duct DiseasesGallstonesCholangitisPancreatic DiseasesBile Duct DiseasesCholangiographyJaundice, ObstructiveCholecystectomy, LaparoscopicBiliary FistulaSphincter of Oddi DysfunctionMagnetic Resonance AngiographyAmpulla of VaterCholestasisCholedochal CystCholestasis, ExtrahepaticSphincter of OddiEndosonographyCholedochostomyCholelithiasisMagnetic Resonance Imaging, CineBile DuctsCholecystectomyGabexateContrast MediaPostcholecystectomy SyndromeDrainageCystic DuctEndoscopes, GastrointestinalCommon Bile Duct NeoplasmsDouble-Balloon EnteroscopyGallbladder DiseasesTomography, X-Ray ComputedBiliary TractBile Duct NeoplasmsPancreatitis, ChronicMirizzi SyndromeHepatic Duct, CommonConstriction, PathologicEndoscopyRetrospective StudiesPancreatic NeoplasmsTreatment OutcomeGastroenterologyPancreasPancreatic PseudocystAmylasesJaundiceCatheterizationDiffusion Magnetic Resonance ImagingBrainAnastomosis, Roux-en-YLithiasisSensitivity and SpecificityBile Ducts, IntrahepaticBiliary Tract Surgical ProceduresGadolinium DTPAGallbladder NeoplasmsBiliary Tract NeoplasmsEndoscopy, Digestive SystemAdenomyomaDuodenal DiseasesCholangiocarcinomaTechnetium Tc 99m LidofeninJejunostomyNuclear Magnetic Resonance, BiomolecularCalculiGadoliniumBiliary DyskinesiaBreath HoldingEndoscopesImaging, Three-DimensionalDuodenoscopyAcute DiseaseBrain MappingDigestive System DiseasesReproducibility of ResultsProspective StudiesPredictive Value of TestsAbdominal PainInsufflationPancreatic FistulaDeep SedationStentsImage Processing, Computer-AssistedPostoperative ComplicationsSurface Plasmon ResonanceNeoplasms, Cystic, Mucinous, and SerousButylscopolammonium BromideDiagnostic Imaging