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许多病变组织和正常组织的声学特性相似而灰阶图像无法辨别显示,多普勒受信噪比的影响不易探测到小血管和低流量的血流信号。近些年来声学造影剂及其成像技术的研发对现代超声诊断学的发展起到了重要的推动作用,本文对肝脏超声造影方法及其在肿瘤诊断中的应用做如下综述。1肝脏
Many lesions and normal tissue acoustic characteristics similar to the grayscale image can not be identified, Doppler signal-to-noise ratio is not easy to detect small blood vessels and low-flow signal. In recent years, the development of acoustic contrast media and its imaging technology has played an important role in the development of modern ultrasound diagnosis. This article summarizes the methods of liver contrast imaging and its application in the diagnosis of tumors. 1 liver