0000000000338402

AUTHOR

Wolfgang Schima

showing 5 related works from this author

2021 European Thyroid Association Guidelines for the Management of Iodine-Based Contrast Media-Induced Thyroid Dysfunction

2021

Given the fact that a large number of radiological examinations using iodine-based contrast media (ICM) are performed in everyday practice, clinicians should be aware of potential ICM-induced thyroid dysfunction (TD). ICM can induce hyperthyroidism (Hyper) or hypothyroidism (Hypo) due to supraphysiological concentrations of iodine in the contrast solution. The prevalence of ICM-induced TD varies from 1 to 15%. ICM-induced Hyper is predominantly found in regions with iodine deficiency and in patients with underlying nodular goiter or latent Graves’ disease. Patients at risk for ICM-induced Hypo include those with autoimmune thyroiditis, living in areas with sufficient iodine supply. Most cas…

Pediatricsmedicine.medical_specialtyGoiterHeart diseaseendocrine system diseasesEndocrinology Diabetes and MetabolismLevothyroxineGuidelinesHyperthyroidismAutoimmune thyroiditisHypothyroidismmedicinereproductive and urinary physiologyPregnancybusiness.industryContrast mediaThyroidmedicine.diseaseequipment and suppliesIodine deficiencyClinical trialmedicine.anatomical_structureembryonic structuresbusinessMultinodular goitercirculatory and respiratory physiologymedicine.drugIodine
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Solitary necrotic nodules of the liver: cross-sectional imaging findings and follow-up in nine patients.

2008

OBJECTIVE. The purpose of our study was to retrospectively evaluate the sonographic, CT, and MRI findings (number, diameter, lobar location, depth from the hepatic capsule, and appearance of lesions) in a series of nine patients with pathologically proven solitary necrotic nodules of the liver and the natural evolution at follow-up in four of the nine patients.CONCLUSION. Solitary necrotic nodules are usually small, solitary lesions, mainly located under the liver capsule of the right lobe. They are hypoechoic on sonography, hypoattenuating on CT, have low signal intensity on both T1- and T2-weighted MRI with lack of enhancement after IV contrast administration, and at follow-up have a tend…

AdultGadolinium DTPAMalemedicine.medical_specialtyIohexolIronContrast MediaCross-sectional imagingNecrosisImage Interpretation Computer-AssistedmedicineHumansRadiology Nuclear Medicine and imagingLiver neoplasmMagnetite NanoparticlesAgedRetrospective StudiesFibrous capsule of Glissonmedicine.diagnostic_testbusiness.industryHepatic capsuleLiver NeoplasmsMagnetic resonance imagingDextransOxidesUltrasonography DopplerGeneral MedicineMiddle Agedmedicine.diseaseMagnetic Resonance ImagingLobeFerrosoferric Oxideliver metastases; liver neoplasm; solitary necrotic nodulesmedicine.anatomical_structureLiverFemaleRadiologyTomographyNuclear medicinebusinessTomography Spiral ComputedCalcificationFollow-Up StudiesAJR. American journal of roentgenology
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Reliability of extracellular contrast versus gadoxetic acid in assessing small liver lesions using liver imaging reporting and data system v.2018 and…

2022

Background & aims: The diagnostic accuracy of Liver Imaging Reporting and Data System (LI-RADS) v.2018 and European Association for the Study of the Liver (EASL) criteria for the diagnosis of HCC have been widely evaluated, but their reliability should be investigated. We aimed to assess and compare the reliability of LI-RADS v.2018 and EASL criteria for the diagnosis of HCC using MRI with extracellular contrast agents (ECAs) and gadoxetic acid (GA) and determine the effect of ancillary features on LI-RADS reliability. Approach & results: Ten readers reviewed MRI studies of 92 focal liver lesions measuring <3 cm acquired with ECAs and GA <1 month apart from two prospective tri…

Carcinoma HepatocellularHepatology[SDV]Life Sciences [q-bio]Liver NeoplasmsContrast MediaReproducibility of ResultsHepatocellular CarcinomaliverMagnetic Resonance ImagingSensitivity and SpecificityHumansData SystemsProspective StudiesRetrospective Studies
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ESGAR consensus statement on liver MR imaging and clinical use of liver-specific contrast agents

2016

Objectives: To develop a consensus and provide updated recommendations on liver MR imaging and the clinical use of liver-specific contrast agents. Methods: The European Society of Gastrointestinal and Abdominal Radiology (ESGAR) formed a multinational European panel of experts, selected on the basis of a literature review and their leadership in the field of liver MR imaging. A modified Delphi process was adopted to draft a list of statements. Descriptive and Cronbach’s statistics were used to rate levels of agreement and internal reliability of the consensus. Results: Three Delphi rounds were conducted and 76 statements composed on MR technique (n = 17), clinical application of liver-speci…

Radiology Nuclear Medicine and ImagingDelphi TechniqueStatement (logic)030218 nuclear medicine & medical imaging0302 clinical medicineNuclear Medicine and ImagingDelphi techniqueAumento da ImagemDiagnosisMedicineImagerie médicale radiologie tomographiehealth care economics and organizationsNeuroradiologySettore MED/36 - DIAGNOSTICA PER IMMAGINI E RADIOTERAPIAmedicine.diagnostic_testLiver CellLiver DiseaseContrast mediaLiver DiseasesLiver NeoplasmsBile DuctInterventional radiologyGeneral MedicineBiliary tract; Contrast media; Delphi technique; Liver; Magnetic resonance imaging; Radiology Nuclear Medicine and ImagingMagnetic Resonance ImagingLiverBiliary tractRadiology Nuclear Medicine and imagingLiver Neoplasm030220 oncology & carcinogenesisRadiologyRadiologyHumanRadiography AbdominalAdenomamedicine.medical_specialtyConsensuseducationReproducibility of ResultConsensuBiliary tract; Contrast media; Delphi technique; Liver; Magnetic resonance imaging; Adenoma Liver Cell; Bile Ducts; Consensus; Delphi Technique; Diagnosis Differential; Humans; Liver Diseases; Liver Neoplasms; Magnetic Resonance Imaging; Radiography Abdominal; Reproducibility of Results; Contrast MediaAdenoma Liver CellDiagnosis Differential03 medical and health sciencesMagnetic resonance imagingHumansAbdominalRessonância MagnéticaMeios de ContrasteComputer. Automationbusiness.industryReproducibility of ResultsMagnetic resonance imagingMr imagingClinical trialRadiographyDifferentialBiliary tractBile DuctsDifferential diagnosisbusiness
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Quadruple-Phase MDCT of the Liver in Patients with Suspected Hepatocellular Carcinoma: Effect of Contrast Material Flow Rate

2006

The purposes of this study were to evaluate the effect of contrast material flow rate (3 mL/sec vs 5 mL/sec) on the detection and visualization of hepatocellular carcinoma (HCC) with MDCT and the safety profile of iodixanol at different injection rates.In a prospective, randomized multicenter trial, 97 patients (83 men and 14 women, with a mean age of 64 years) suspected of having HCC underwent quadruple-phase (double arterial, portal venous, delayed phase) 4-16-MDCT. Patients were randomized to receive iodixanol, 320 mg I/mL (1.5 mL/kg body weight), at a flow rate of 3 mL/sec (48 patients) or 5 mL/sec (49 patients). Qualitative (lesion detection, image quality) and quantitative (liver and …

Malecontrast media; ct; liver disease; mdctCarcinoma Hepatocellularmedia_common.quotation_subjectcontrast mediaLiver diseaseSettore MED/36 - Diagnostica per Immagini e RadioterapiamdctTriiodobenzoic AcidsMulticenter trialCarcinomaHumansMedicineContrast (vision)Radiology Nuclear Medicine and imagingIn patientProspective StudiesProspective cohort studymedia_commonbusiness.industryLiver NeoplasmsGeneral MedicineMiddle Agedmedicine.diseaseIodixanolHepatocellular carcinomaFemaleTomography X-Ray Computedliver diseasebusinessNuclear medicinectmedicine.drugAmerican Journal of Roentgenology
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