We collected patients aged 18 to 85 who had undergone liver transplantation. At the same time, all patients underwent liver biopsy or ultrasonic transient elastography after MRI. People who were allergic to gadolinium contrast agent, serious cardiopulmonary disease and contraindications to MRI were excluded.
It is an open label observation clinical trial, all participants are liver transplant patients. The investigators deem to make a better criteria for assessing liver fibrosis after liver transplantation. The point of the clinical trial is to evaluate the efficacy of multiparameter MRI in the diagnosis of liver fibrosis after liver transplantation.