Abstract: Objective To compare the diagnosis of total tumor perfusion and maximum diameter measurement in assessing CT scan imaging in patients with hepatocellular carcinoma（HCC）. Methods Fifty-six patients with hepatocellular carcinoma between January 2013 and January 2016 were recruited in this study. The 320 row volume CT perfusion imaging was performed. The parameters of hepatic perfusion were calculated, including hepatic artery perfusion （HAP）,portal vein perfusion （PVP） and hepatic perfusion index （HAPI）. The total tumor perfusion and the maximum diameter of tumors were applied to record the parameters of tumoral, peritumoral and normal liver tissues. Results The HAP and HAPI of tumors were much higher,while the PVP of tumors were much lower than those in peritumoral or normal liver tissue by both measurements （P<0.05）;there was no significant difference between parameters of tumors by both measurements（P>0.05）,and there was also no significant difference between parameters by two doctors who measure the parameters （P>0.05）. Conclusion The total tumor perfusion or maximum diameter measurement in assessing CT scan imaging in patients with hepatocellular carcinoma is good,but the latter might be convenient and simple.

Key words: Hepatoma, Computerized tomography, Tumor perfusion, Measurement