三维容积超声在肝脏肿瘤诊断中的应用价值

Application of three-dimensional ultrasonography in the diagnosis of liver solid lesions

目的:探讨三维容积超声在肝脏肿瘤术前诊断中的临床应用价值.方法:应用三维超声重建技术,采集60例共78个肝实质性肿块内部及其周围肝脏组织的血供信息,观察其立体图像,并与病理结果对照.结果:三维重建后瘤体内血管显示率较二维图像增多,并可获取二维实时扫查不能直接显示的肝脏肿瘤血管和周围血管分布的立体构象,进行定位诊断.78个病灶中HCC以内部血流为主,MLT以瘤周血流为主,总诊断符合率为94.9%.结论:三维容积超声技术可根据肝脏肿瘤内部和周围血管的走行及空间位置关系进行准确的定位,并为临床鉴别诊断提供依据.

AIM： To explore the application of three-dimensional ultrasonography in the diagnosis of liver solid lesions.METHODS： A total of 78 liver solid lesions in 60 patients were examined using three-dimensional ultrasonography. The three-dimensional images of blood vessels in liver solid lesions and their surrounding liver tissues were obtained. The three-dimensional ultrasonography findings were then confirmed pathologically.RE SU LTS： In 78 liver solid lesions, the detection rate of blood flow signal by three-dimensional ultrasonography was higher than that by two- dimensional ultrasonography. Three-dimensional ultrasonography permitted acquisition of stereoscopic images of blood vessels in liver solid lesions and their surrounding liver tissues.In hepatocellular carcinoma patients, blood flow signal was more abundant in tumor center than in tumor margin. In metastatic liver tumor patients, blood vessels were mainly distributed in tumor margin. The coincidence rate between three-dimensional ultrasonographic diagnosis and pathological diagnosis was 94.9%.CONCLUSION： Three-dimensional ultrasonog- raphy can be used to precisely localize spaceoccupying lesions in the liver based on stereoscopic localization of blood vessels in these lesions and their surrounding tissues, and is therefore useful for differential diagnosis of liver neoplasms.