UltrasonographyTransducersUltrasonography, Doppler, ColorUltrasonography, DopplerUltrasonography, PrenatalSTAT3 Transcription FactorTransducers, PressureEndosonographyUltrasonography, Doppler, DuplexUltrasonography, Doppler, PulsedUltrasonography, InterventionalUltrasonography, MammarySensitivity and SpecificityUltrasonography, Doppler, TranscranialSTAT1 Transcription FactorSignal TransductionSulfur HexafluorideSTAT5 Transcription FactorUltrasonicsContrast MediaTomography, X-Ray ComputedPregnancyProspective StudiesTrans-ActivatorsReproducibility of ResultsSensory RhodopsinsImaging, Three-DimensionalBlood Flow VelocityPredictive Value of TestsUrographySTAT Transcription FactorsCytokine Receptor gp130Ultrasonic TherapyFetal DiseasesImage EnhancementScrotumCystsEquipment DesignJanus KinasesEchoencephalographyMilk ProteinsJanus Kinase 2Retrospective StudiesSuppressor of Cytokine Signaling ProteinsAbdomenDNA-Binding ProteinsSTAT6 Transcription FactorPhosphorylationHalorhodopsinsPalpationCarotid Artery DiseasesLiver NeoplasmsGestational AgeCarotid ArteriesMagnetic Resonance ImagingJanus Kinase 1VaginaObserver VariationPreoperative CareToe JointThyroid NoduleOvarian CystsTesticular DiseasesGallbladderTime FactorsMetacarpophalangeal JointInterleukin-6AuscultationMicrobubblesHydronephrosisDiagnostic ImagingAbdominal InjuriesSTAT2 Transcription FactorSplenic DiseasesRectumAcousticsTreatment OutcomeMicroscopy, AcousticFollow-Up StudiesPhantoms, ImagingNiobiumEquipment Failure AnalysisInfant, NewbornBiopsy, NeedleGallbladder DiseasesElasticity Imaging TechniquesAngiographyIntraoperative CareUterusPulsatile FlowCarotid Artery, CommonBiliary Tract DiseasesFalse Positive ReactionsBiopsy, Fine-NeedleOvarian FollicleTunica MediaPrenatal DiagnosisFetal HeartPregnancy Trimester, SecondTendinopathy