Clinical Application of More-phase Spiral CT in Small Hepatocellular Carcinoma and Small Hepatic Hemangioma

Wang Hai

doi:10.3969/j.issn.1004-4140.2001.02.007

Abstract：Objective: To investigate the enhanced spiral CT features of SHCC and SHHE,and the changing of these features with time. Materials and Methods: Of 50 cases with SHCC(15/50)and SHHE (35/50), 19 cases were surgically and pathologically proved, and the others were clinically diagnosed. Plain scanning, single-level dynamic scanning of the target section during hepatic arterial phase (delaying 25-30 sec.), portal venous phase scanning(delaying 60-70 sec.)of the whole liver, and equilibrium scanning of the target section here performed. The dynamic changes of CT features were observed and analyzed. Results: 35 cases with SHHE were found in 44 focuses. Peripheral enhancement significantly of the lesion were found 30(30/44) focuses on the arterial phase scan and to fill up by degrees from the periphery of the lesion to center. Hemogenous enhancement was seen in 22(22/44) focuses and 2(2/44) focuses did not showed enhance-ment on the arterial phase and the portal venous phase scan. 42(42/44)cases with SHHE showed high or equal density compare with the liver density on the equilibrate phase scan. 15 cases with SHCC were found in 18 focus . Hemogenous enhancement was seen in 14 (14/18) focuses on the arterial phase scan and did not showed enhance-ment on the portal venous phase scan. 2(2/18) cases with SHHE showed hemogenous or no hemogenous enhancement on the equilibrate phase scan. 16(16/18) cases with SHCC showed low density compare with the liver density on the equilibrate phase scan. Conclusion: According to the enhanced spiral CT features and the changing of these features with time, the most of SHCC and SHHE were diagnosed.