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目的 :评价结节型肝细胞癌在螺旋CT增强扫描中 ,其动脉期、门脉期、延迟期的病灶检出率。材料与方法 :2 4例结节型肝细胞癌行螺旋CT检查 ,先平扫 ,再以 3ml 秒团注对比剂 15 0ml,分别作动脉期 (注射后 2 5秒 )和门脉期 (注射后 60～ 70秒 )、延迟期扫描 (注射对比剂后 4～ 6min)。观察病灶的强化方式 ,统计各期的病灶检出率。结果 :这 2 4例共发现肿瘤病灶 45个 ,平扫、动脉期、门静脉期、延迟期扫描的病灶率分别是 2 3 5 %、 84 3 %、 66 7%、 72 5 %。结论 :螺旋CT增强扫描能显示结节型肝细胞癌的强化特点 ,三期结合可明显提高病灶的检出率
PURPOSE: To evaluate the detection rate of nodular hepatocellular carcinoma (HCC) in the arterial phase, portal phase and delayed phase in helical CT enhanced scanning. MATERIALS AND METHODS: Twenty-four patients with nodular hepatocellular carcinoma underwent helical CT scan. First, the patients were enrolled in a control group with 15ml of 3ml second enamel. The arterial phase (25 seconds after injection) and the portal phase After 60 to 70 seconds), delayed scan (injection of contrast agent after 4 ~ 6min). Observe the enhancement of the lesion, statistics the detection rate of the lesion in each period. Results: Forty-four tumor lesions were found in 24 cases. The rates of lesions were 23.5%, 84.3%, 66.7% and 72.5% respectively in plain scan, arterial phase, portal vein phase and delayed phase scan. Conclusion: Enhanced spiral CT scan can show enhanced features of nodular hepatocellular carcinoma, the combination of three can significantly improve the detection rate of lesions