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本文应用二维超声及彩色多普勒血流显像（CDFI）探查了28例肝癌合并门脉瘤栓的患者。结果示：门脉瘤栓以主干、主干＋右支及主干＋左支＋右支最多见，分别为35．7％、25％及25％。多好发于弥漫型肝癌占53．6％。门脉内径明显增宽。CDFI探查有以下特点：门脉血流中断（42．9％）；腔内可见线状纤细的间断或斑点状血流信号（14％）；血流束变细或充盈缺损（28．6％）；瘤栓内探及动脉血流频谱（21．4％）；侧支循环血流（21．4％）；由肝门向肝内放射状扩张的动脉血流（89％）。二维超声及CDFI不但可以提高对门脉瘤栓的检出率，且对门脉阻塞程度的判断极有帮助。
In this study, 28 patients with hepatocellular carcinoma combined with portal vein tumor embolus were examined using two-dimensional ultrasound and color Doppler flow imaging (CDFI). The results showed that the portal vein tumor thrombus was the most common in trunk, trunk + right branch and trunk + left branch + right branch, which were 35.7%, 25% and 25% respectively. More than 56% of diffuse liver cancer occurred. Portal diameter significantly widened. The CDFI probe had the following characteristics: portal blood flow disruption (42.9%); linear slender intermittent or macular blood flow signals (14%); fine blood flow bundles or filling defects (28.6%) ); tumor thrombus internal exploration and arterial blood flow spectrum (21.4%); collateral circulation blood flow (21.4%); intra-artery blood flow from the portal to the liver radial expansion (89%). Two-dimensional ultrasound and CDFI can not only improve the detection rate of portal vein tumor thrombus, but also help judge the degree of portal vein obstruction.