Diagnosis of Graft Pathology by TruGraf

Blood from the patients undergoing graft liver biopsy will be collected on the day of the liver biopsy, preferable prior to tissue collection or within 48 hours following the biopsy. Two specialized PaxGene tubes containing 2.5mL of blood each will be filled and will be sent to TGI laboratory in USA for processing, storage, and analysis using TGI's proprietary bioinformatics TruGraf will provide UHN with a Liver binary result: ACR or non-ACR. The results data will be batched and sent to UHN at agreed upon timepoints.