实验结果确定并了解在静脉注射造影剂后,肿瘤和循环系的小血管内多普勒和超声信号增强的原因。实验是用8只患有肝细胞癌的土拨鼠。在其后肢或颈静脉内注入0.1~4.0ml的充气的人体血清白蛋白颗粒。超声检查包括腹部的双功能扫描,彩色多普勒以及将多普勒探头置于外露的肿块上和外科手术时植入脉冲多普勒探头。记录下来的彩 The experimental results identify and understand the causes of small intravascular Doppler and ultrasound signal enhancement in the tumor and circulatory system following intravenous injection of contrast agents. The experiment was conducted with 8 prairie dogs with hepatocellular carcinoma. Infuse 0.1 to 4.0 ml of aerated human serum albumin particles into the hindlimb or jugular vein. Ultrasound includes a bi-functional scan of the abdomen, color Doppler and placement of a Doppler probe on the exposed mass and implantation of a pulsed Doppler probe during surgery. Recorded color