Abstract:

Objective   To evaluate the clinical value of multislice spiral CT angiography (MSCTA) in the interventional treatment of hepatocellular carcinoma. Methods   MSCTA and digital subtraction angiography(DSA) were performed in 62 hepatocellular carcinoma patients before the transcatheter hepatic artery chemoembolization. The images of hepatic artery anatomy, hepatic tumorous vascular system and portal vein system were analyzed. Results   MSCTA was highly consistent with DSA in displaying the celiac artery and hepatic artery anatomy. Both the maximum intensity projection(MIP)and DSA were superior to volume rendering (VR) in demonstrating the tumor supplying arteries(P＜0.05). MIP was better than VR(P＜0.05) in demonstrating hepatic artery branches of grade 3, and there was no significant difference between DSA and MIP. For displaying the grade 4 or above hepatic arterial branches, DSA was better than MIP, and MIP was better than VR, and the difference was statistically significant(P＜0.05). There was no significant difference between MSCTA and DSA in showing tumor thrombus of portal veins and portal venous collateral vessels(P＞0.05). However, DSA was superior to MSCTA in demonstrating the hepatic artery-portal vein shunt(P＜0.05). Conclusion   MSCTA can accurately display supplying arteries of liver cancer and the portal vein system, and provide effective guidance for the interventional treatment.

Key words: Liver neoplasms; Tomography, Xray computed; Angiography, digital subtraction; Radiology, interventional；Embolization, therapeutic