肝细胞癌的CT分型及双期扫描的特点

目的 :探讨各型肝细胞癌的螺旋CT双期扫描的特点。方法 :对 6 7例肝细胞癌病人行螺旋CT双期扫描后 ,观察病灶的大小、数目、分布、强化特点与进展程度的关系。结果 :6 7例基于手术病理和综合影像方法共发现病灶 87处 ,其中小癌型 15例 (2 2 .39% )、单巨块型 2 4例 (35 .82 % )、单结节型 8例 (11.94 % )、混合型 12例 (17.91% ) ,弥漫型 6例(8 96 % )、特殊型 2例 (2 .98% )。直径 >6cm的单巨块型癌栓形成 (79.19% ) ,肝外转移 (2 9.17% )发生率明显大于直径 3～ 6cm的单结节型。 6cm可以作为划分单巨块型和单结节型的参考值。结论 :螺旋CT双期扫描能显示各型肝细胞癌的特点。

The CT classification and two-phase dynamic contrast enhanced feature of hepatocellular carcinoma

Objective:To evaluate the two-phase dynamic contrast enhanced features of hepatocellular carcinoma (HCC).Methods:Two-phase spiral CT scans of the liver were performed in 67 petiens with HCC,the correlation between the lesion's size,number,location,contrast enhanced feature and development degree was analyzed.Results:87 lesions of total 67 cases were confirmed surgically and pathologically or on other image methods,15 lesions were small carcinoma type,24 lesions were solitary giant mass type,8 lesions were solitary nodule type,12 lesions were mixed type,6 lesions were diffused type,2 cases were specific type. The accident of cancerous thromobus and extra-liver metastasis in solitary giant mass type was higher than that in nodule type,6 cm can be seen as a referential value to classify solitary giant mass type with nodule type.Conclusion:Two-phase spiral CT scan can show the feature of HCC of every type.