小肝癌的声像图特征分析

Analysis of ultrasonic characters of small hepatocellular carcinoma

目的 :探讨超声诊断早期肝癌的临床价值。方法 :回顾性分析 4 8个小肝癌的二维及彩色多谱勒超声表现 ,主要分析肿块的边缘回声、侧方回声、内部回声、后方回声、肿块与周边血管的关系及肿块周边与内部的血流性质、血流动力学参数。结果 :发现 4 5个病灶具有明显团块效应 ,多为低回声 ,周边可有声晕 ,侧方可有声影 ,后方回声可增强 ,周边血管可受压、中断。病灶最大为 3cm ,最小为 1 1cm ,另有 3个病灶未检出 ,总的检出率 93 8%。所检出病灶周边及内部均有血流信号 ,其中 88 9%为动脉 ,1 1 1 %为门静脉。动脉显示为高速低阻型。肿瘤体积与血流速度有一定关系 ,即肿瘤越大 ,肿瘤内动脉收缩期峰值速度越高。结论 :小肝癌具有较典型的声像图特征 。

Objective:To study the diagnosis of small hepatocellular carcinoma(SHCC) by using ultrasonography.Methods:48 cases of SHCC were exmained with two dimensional and color doppler ultrasonography,the ultrasonic signs were studied retrospectively by observing the edge echo,the flank echo,the rear echo,the inner echo,the relation between the mass and the vessel,the flow state and hemodynamics.Results:45 patients with SHCC were discovered the mass effect of the tumor obviously,inner echo was evenly weak,it had a vocal cords around the tumor,the flank echo had a shadow,the vessel around the mass were pressed by tumors,the biggest tumor size was 3 cm,the minimal tumor size was 1 1 cm,3 cases with SHCC was not revealed,the detecting rate of SHCC was 93 8%.CDFI or CDE showed blood flow rate of arterial and the all tumors.The detecting rate of arterial and portal flow were 88 9%,11 1%.arterial flow showed high speed and low resistance.There was a relationship between the tumor volume and the tumor blood speed,the volume is bigger,the speed is faster.Conclusion:sonograms have specific features of SHCC,ultrasonic examination is valuable in diagnosis of SHCC,it is the first way of image analyzer in diagnosis of SHCC.