Anderegg A, Sarraj A H
Service de radiodiagnostic, CHUV, Lausanne.
Schweiz Rundsch Med Prax. 1990 Feb 6;79(6):121-4.
Duplex-sonography has permitted to derive Doppler-signal curves in color. Direction of flow is indicated by blue or red, according to flow from or to the probe. This permits a rapid investigation and yields intelligible images. In liver transplantation, potency and flow through parenchymal arteries and veins can be visualized. Alterations of flow in the suprahepatic venous circulation and in the portal circulation in cirrhotic patients and the development of a collateral circulation are described. With the color-Doppler imaging technique, peripheral parenchymal vessels can be studied, which is of great use in the diagnosis of tumors and in cases of abdominal trauma.
双功超声检查已能够获取彩色多普勒信号曲线。血流方向根据其相对于探头的流向分别用蓝色或红色表示。这使得检查迅速且能产生清晰的图像。在肝移植中，可以观察到肝实质内动脉和静脉的血流情况及血流量。还描述了肝硬化患者肝上静脉循环和门静脉循环的血流改变以及侧支循环的形成。利用彩色多普勒成像技术，可以研究肝实质外周血管，这在肿瘤诊断和腹部创伤病例中非常有用。
