Objective:To evaluate the significance of CT perfusion imaging of hepatic functional reserve and surgical to lerance in patients with hepatocellular carcinoma.Methods:Retrospective analysis were used in January 2005 ~ December 2008 of 72 cases of patients with hepatectomy for primary liver cancer.CT perfusion imaging characteristics were used to evaluate liver reserves

and compared with Child-Pugh classification.Results:In CT perfusion imaging of primary liver cancer

HAP(t = 10.316

P = 0.000 1)and HPI(t = 18.153

P = 0.000 1)showed hyperperfusion

and PVP(t = 15.724

P= 0.000 1)

TLP(t = 8.728

P= 0.000 1)showed hypoperfusion.Each perfusion parameters and Child-Pugh classification have correlation.rs were 0.724(t= 6.847

P= 0.013)

-0.694(t = 6.135

P = 0.027)

-0.764(t = 8.675

P= 0.008)and 0.733(t = 7.156

P = 0.011).Respectively.Four perfusion parameters can effectively predict the hepatic functional reserve

the area under the ROC curve were 0.869(P = 0.000 1)

0.772(P = 0.000 1)

0.835(P = 0.000 1)

0.846(P = 0.000 1).HAP and the Child-Pugh can be independent predictors of hepatic functional reserve.And they have a certain degree of complementarity.Conclusion:CT perfusion imaging of primary liver cancer has a typical imaging features

which can effectively predict the hepatic functional reserve and surgical tolerance

and have some complementary with Child-Pugh

joint forecasting can improve the diagnosis performance.