To study a new method for predication of portal vein pressure (PVP) by hepatic perfusion imaging. 25 hepatocirrhotic cases and 13 normal controls were performed the hepatic perfusion imaging. According to two compartmental model the values of portal vein indexes (PVI) was calculated using curve slope

area and hepatic heart perfusion ratio methods etc. The relationship of PVI with different method to PVP was also observed. All PVI by three methods in hepatocirrhosis were higher than those in normal controls ( P <0.01)

and also positively correlated with the PVP

their correlated coefficients was 0.79

0.60

0.68 respectively. Among them the slope method was most markedly significant than nomal control and closely correlated with PVP. PVI can sensitively reflect the changes of portal vein blood flow. And it was an atraumatic

simple method for the evaluation of PVP.