The value of multislice spiral CT in transcatheter arterial chemoembolization of the hepatocellular carcinoma

Objective To evaluate the value of multislice spiral CT(MSCT)in transcatheter arterial chemoembolization of the hepatocellular carcinoma.Methods MSCT were performed in 54 cases of HCC before interventional procedure.CT findings of hepatic artery phase,portal venous phase and hepatic venous phase were observed respectively.CTA were done in 12 cases,the anatomy of celiac artery and its branches were observed.The schemes of interventional therapy were worked out according to the findings of MSCT.The demonstration of lesions and its complications were compared between CT and DSA.Reconstruction of celiac artery branches used the technique of VRT,MIP or MPR.Results MSCT showed 225 lesions,10 cases tumor thrombosis of portal vein,1 case hepatic arteriovenous shunt,and 13 cases hepatic arterioportal shunt.Positive rate of MSCT in showing number of tumor lesions,tumor thrombosis in portal vein was slightly higher than that of DSA,but there was no significant difference(P0.05).Showing of 3D reconstruction of celiac artery branches in CTA is better than that in DSA,Showing of angles between celiac artery and abdominal aorta in MSCT is more convenient than that in DSA.MSCT showed 5 cases hepatic artery original abnormality.The results were in accord with that in DSA.Five cases were demonstrated of multiple supply blood vessels of tumor in MSCT,It was slightly lower than that of DSA.Conclusion MSCT is of importance for guidance of transcatheter arterial chemoembolization of the hepatocellular carcinoma,delay time of CT scan is the key to the showing of lesions and blood vessels.