Magnetic Resonance Imaging, InterventionalImage-Guided BiopsyNeedlesBiopsy, NeedleEndosonographyBiopsyRadiography, InterventionalUltrasonography, InterventionalEndoscopic Ultrasound-Guided Fine Needle AspirationBiopsy, Fine-NeedleJugular VeinsPancreatitis, ChronicPancreatic DiseasesPancreatic NeoplasmsPancreatic CystCholangiopancreatography, Magnetic ResonanceEndoscopy, Digestive SystemCholangiopancreatography, Endoscopic RetrogradePancreatic PseudocystCyst FluidPancreasCholedocholithiasisSensitivity and SpecificityLithiasisEndoscopyTomography, X-Ray ComputedCeliac PlexusPancreatitisUltrasonographyDuodenal DiseasesEsophageal NeoplasmsLymphangioma, CysticElasticity Imaging TechniquesPredictive Value of TestsNatural Orifice Endoscopic SurgeryUltrasonicsPancreatic Function TestsDigestive System NeoplasmsUltrasonic TherapyNeoplasm StagingReproducibility of ResultsRetrospective StudiesAdenocarcinomaMediastinumNeuroendocrine TumorsPancreatic DuctsNeoplasms, Cystic, Mucinous, and SerousBronchoscopyEsophagectomyHigh-Intensity Focused Ultrasound AblationProspective StudiesMediastinal NeoplasmsGastroscopyDrainagePreoperative CareEsophagusDuodenal NeoplasmsBiopsy, Large-Core NeedleLymphatic MetastasisFeasibility StudiesAmpulla of VaterStomach NeoplasmsPancreaticoduodenectomyMicrobubblesLymph NodesCarcinoma, Pancreatic DuctalTreatment OutcomeGastrointestinal NeoplasmsNeoadjuvant TherapyUltrasonography, PrenatalMagnetic Resonance ImagingRectal NeoplasmsGastrointestinal Stromal TumorsTransducersFollow-Up StudiesPrognosisNeedle SharingCarcinomaUltrasonography, DopplerUltrasonography, Doppler, ColorEquipment DesignUltrasonography, MammaryPregnancyCombined Modality TherapyContrast Media