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目的探讨超声诊断早期肝癌的临床价值。方法回顾性分析48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45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%。所检出病灶周边及内部均有血流信号,其中88%为动脉,12%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,超声可作为诊断小肝癌的首选影像学方法。
Objective To investigate the clinical value of ultrasonography in the diagnosis of early stage liver cancer. Methods We retrospectively analyzed the two-dimensional and color Doppler echocardiographic findings of 48 small hepatocellular carcinomas. We mainly analyzed the marginal echo, lateral echo, internal echo, posterior echo, the relationship between tumor and peripheral blood vessels and the peripheral and internal blood flow Nature, hemodynamic parameters. The results showed that 45 lesions with obvious mass effect, mostly hypoechoic, peripheral sound halo, side may have sound and shadow, the rear echo can be enhanced, the surrounding blood vessels can be pressure, interruption. The maximum lesions were 3cm, the minimum was 1.1cm, and the other three lesions were not detected, the total detection rate of 93%. Blood flow signals were detected around and inside the lesion, of which 88% were arterial and 12% were portal vein. Arteries showed high-speed, low-impedance type. Tumor volume and blood flow velocity have a certain relationship, that is, the larger the tumor, the higher the peak velocity of the tumor in the systolic period. Conclusion Small hepatocellular carcinoma has the typical features of ultrasonography. Ultrasound can be used as the imaging method of choice for the diagnosis of small hepatocellular carcinoma.