Nerve BlockUltrasonography, InterventionalFemoral NerveAnesthetics, LocalSciatic NerveEndoscopic Ultrasound-Guided Fine Needle AspirationBiopsy, NeedleBrachial PlexusSclerosing SolutionsMandibular NerveEndosonographyUltrasound, High-Intensity Focused, TransrectalImage-Guided BiopsySclerotherapyLidocaineUltrasonicsPeripheral NervesUltrasonographyBiopsy, Fine-NeedleAutonomic Nerve BlockCatheterization, PeripheralSodium Tetradecyl SulfateBupivacaineInjectionsObturator NerveVaricose VeinsPain MeasurementMepivacaineTendinopathyAneurysm, FalseMediastinumInjections, IntralesionalTreatment OutcomePain, PostoperativeLumbosacral PlexusIatrogenic DiseaseMaxillary NerveAnesthesia, DentalProstateUltrasonography, Doppler, ColorOptic NerveInjections, Intra-ArterialProspective StudiesNerve FibersUltrasonic TherapyAmidesZygapophyseal JointMediastinal NeoplasmsInguinal CanalAnesthesia, ConductionIntercostal NervesHigh-Intensity Focused Ultrasound AblationRadiography, InterventionalDental Pulp TestMedian NervePeripheral Nerve InjuriesTibial NerveSensitivity and SpecificityFemoral ArteryNerve RegenerationAmbulatory Surgical ProceduresNeedlesSpinal NervesMicrobubblesAnalgesiaRetrospective StudiesPrilocaineNerve EndingsSural NerveAdjuvants, AnesthesiaAnesthesia, LocalFollow-Up StudiesTrigeminal NerveFacial NerveNerve CrushUlnar NerveHypogastric PlexusUltrasonography, PrenatalBiopsyPancreasOrthopedic ProceduresSpinal Nerve RootsPancreatic NeoplasmsFemoral NeuropathyHeart BlockTransducersNeural ConductionAnalgesia, Patient-ControlledPain Management