This document discusses several tools for evaluating liver function and predicting postoperative outcomes following hepatic resection. It mentions several studies that found: - Remnant liver volume/body weight ratio (RLV/BWR) of less than 0.5% was a risk factor for hepatic dysfunction after right trisectionectomy. - Only a hepatic venous pressure gradient greater than 10 mmHg was a significant risk factor for decompensated cirrhosis after surgery in univariate analysis. - Indocyanine green retention rate at 15 minutes was significantly higher in patients who died compared to survivors following hepatic resection. - A posthepatectomy portal vein pressure over 22.5 mmHg was an independent predictor of liver failure and mortality