New MRI scan could replace endoscopy for liver patients

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria for Aim 1: * Healthy volunteers: Adults (\>18 years) with no known liver pathology * Obese volunteers: Adults (\>18 years), no known liver pathology, body mass index (BMI) ≥ 35 * Patients: Adults (\>18 years) with known cirrhosis and known Gastroesophageal varices Exclusion Criteria for Aim 1: * contraindications to MRI * hypersensitivity reactions to both contrast agents * patients with recent treatment for varices with embolization, TIPS, or other endovascular treatment * patients with active GEV bleeding; known occlusive thrombus in portal vein, splenic vein, or superior mesenteric vein. * patients with large HCC with known PC involvement. Inclusion criteria for Aim 2-4: * Adults (\>18 years) with known cirrhosis Exclusion Criteria for Aim 2-4: * Contraindications to MRI * Recent treatment (\< 1 year) for varices * Known occlusive thrombus in portal vein; splenic vein, or superior mesenteric vein * Large hepatocellular carcinoma (HCC) with known PV involvement * Hypersensitivity reactions to both contrast agents * Participants requiring conscious sedation for imaging are not eligible; participants requiring mild, oral anxiolytics for the clinical MRI scan will be allowed to participate as long as the following criteria are met: * The participant has their own prescription for the medication * The informed consent process is conducted prior to the self-administration of the medication. * The participant comes to the research visit with a driver. Inclusion Criteria for Aim 5: * Adults (\>18 years) with Fontan repair and diagnosed FALD Exclusion Criteria for Aim 5: * Contraindications to MRI * Recent treatment (\< 1 year) for varices * Known occlusive thrombus in portal vein; splenic vein, or superior mesenteric vein * Large hepatocellular carcinoma (HCC) with known PV involvement * Hypersensitivity reactions to both contrast agents * Participants requiring conscious sedation for imaging are not eligible; participants requiring mild, oral anxiolytics for the clinical MRI scan will be allowed to participate as long as the following criteria are met: * The participant has their own prescription for the medication * The informed consent process is conducted prior to the self-administration of the medication. * The participant comes to the research visit with a driver.