Nodular hepatocellular carcinoma on three phases spiral CT scanning:Emphasis on evaluating the detected rate of the lesions / 重庆医科大学学报

ABSTRACT

Objective:To compare the detected rate of nodular hepatocellular carcinomas (HCC)on spiral CT enhanced scanning of arterial-, portal-, and delay phase. Methods: Spiral CT scanning was performed in 30 cases of nodular HCC. After plain CT examination, arterial phase(25s after injection) and portal venous phase (60～70s after injection), delay phase (4～6min after injection) were performed with a 150ml bolus injection of contrast material at 3ml/s. The morphology and characteristics on enhanced scans were analyzed and the numbers of the detected lesions were calculated on each phase.Results: 51 nodular HCC of total 30 cases were found.The detected rate on plain scan,arterial phase,portal venous phase and delay phase were 23.5%,84.3%,66.7% and 72.5% respectively.Conclusion: Spiral CT enhanced scanning can fully show the enhanced characteristics of HCC, and combination of three phases could improve the detectrate.