原发性肝癌肿瘤边缘螺旋CT肝双期扫描的表现

The CT Appearance of Tumor Border of Primary Hepatocellular Carcinoma on Helical Dual-phases CT

目的 :探讨原发性肝癌 (PHCC)边缘螺旋CT肝双期扫描表现特点。材料和方法 :回顾性分析 84例经临床、DSA及病理证实的PHCC边缘肝双期扫描表现。结果 :肝癌边缘形态分为四个类型 :( 1)边缘清楚型 ( 19例 ) ,6例肝动脉期边缘见强化肿瘤血管 ,3例门静脉期边缘部分强化 ;( 2 )完整包膜型 ( 14例 ) ,包膜环形强化门静脉期多见 ;( 3)边缘不清型( 2 7例 ) ,2 4例肝动脉边缘见强化肿瘤血管 ,7例门静脉期边缘部分强化 ;( 4 )混合型 ( 2 4例 )。结论 :螺旋CT肝双期扫描可较好显示PHCC边缘形态特点及血供 ,对了解其生物学特性、介入治疗效果预测有一定临床价值。

Purpose: To discuss the CT feature of the tumor border of primary hepatocellular Carcinoma (PHCC) on helical dual phases CT. Materials and methods: The hepatic helical dual phase CT data of 84 patients with PHCC were reviewed retrospectively. Results: According to the CT appearance, the tumor border of PHCC were divided into four types: (1) well defined marging (n=19), the enhanced vessels of tumor border were demonstrated on hepatic arterial phase (n=6). the tumor border were enhanced on hepatic portal veinous phase (n=3). (2) entire capsule (n=14), the most of tumor capsule were enhanced on hepatic portal veinous phase. (3) poor defined margin (n=27), the enhanced vessels of tumor border were demonstrated on hepatic arterial phase (n=24). the tumor border were enhanced on hepatic portal veinous phase (n=7). (4) mixed border (n=24). Conclusion: The hepatic helical dual phase CT is an effective method in demonstrating the shape and blood supply of tumor border of PHCC. It has important value in evaluating the biologic feature, and prediction of interventional therapeutic effectiveness.