Evaluation of Gd-EOB-DTPA MRI for Detection and Characterization of Liver Nodules in Cirrhotic Patients Undergoing Liver Transplantation and Potential Impact on Transplant Eligibility

Evaluation of Gd-EOB-DTPA MRI for Detection and Characterization of Liver Nodules in Cirrhotic Patients Undergoing Liver Transplantation and Potential Impact on Transplant Eligibility

Chronic liver disease including cirrhosis is one of the most important factors in the multi-step progression of hepatocarcinogenesis, from benign regenerative nodules to early hepatocellular carcinomas (HCCs) and finally to overt HCCs. Early diagnosis of HCC, differentiation from benign hepatocellular nodules, and surgical resection of the tumor or transplantation of the liver provide the best chance for long-term survival. Several studies have evaluated MRI enhanced with superparamagnetic iron oxide, gadolinium-based contrast material, or both, for the detection and differential diagnosis of focal hepatic lesions. However, the differentiation of HCC from benign and or borderline hepatocellular nodules remains difficult, particularly in patients with cirrhosis, because of the architectural distortion of liver parenchyma and the development of cirrhotic nodules, ranging from benign regenerative nodules to overt HCC, with overlapping imaging features. Recently, gadoxetic acid (gadoliniumethoxybezyl-diethylenetriamine pentaacetic acid; Primovist®, Bayer Health Care Pharmaceuticals), a gadolinium-based paramagnetic contrast agent that produces both dynamic and liver-specific hepatobiliary MRI studies has gained widespread use. Some studies have showed that gadoxetic acid-enhanced MRI allows the accurate detection and characterization of HCC. Investigators plan to assess this in particular as it is a question of great relevance. Execution of well conducted prospective studies will also clarify inclusion of Gd-EOB-DTPA enhanced MRI as the technique of choice in evaluation of patients at risk for HCC.

Inclusion Criteria:

• a. Patients with liver cirrhosis enlisted for liver transplantation with high probability of undergoing transplantation within the ensuing 12 months

  b. Patients who are diagnosed or suspected with HCC and listed for liver transplant surgery with priority MELD (Model for End-Stage Liver Disease) points based on the cancer diagnosis, regardless of whether they have or have not received pre-transplant treatments (incl. RFA, TACE, and XRT)

  c. Subjects must be able to undergo MRI

Exclusion Criteria:

• a. GFR <30 mL/min/1.73 m2

  b. Elevated bilirubin (>3mg/dl)

  c. Pregnant and/or nursing women

  d. Contraindications to MRI such as pacemaker or ferromagnetic implants

  e. Hypersensitivity to Primovist or to any ingredient in the formulation or component of the container

  f. Younger than 18 years of age