Hypothermic Machine Preservation-Phase 2

This is a study comparing a technique of continuous circulation to the liver as a means of preventing liver damage during transportation to the transplant hospital. This new technique of Machine Perfusion (MP) will be compared to the standard technique where the liver is maintained in a bag of solution on ice without circulation. The investigators will evaluate and compare the outcomes of the transplants with the new technique to the standard technique. There will be 24 MP patient's in the study. The investigators have previously used this technique with success in 20 human liver transplant patients. The investigators think there will be a benefit in terms of less damage to and better function of the donor liver which will result in faster recovery for the patients. This protective effect may allow us to successfully transplant more patients and prevent people from dying while waiting for a liver transplant.