目的探讨经静脉超声造影对肝肿瘤彩色血流信号的增强作用及其在肿瘤的诊断和鉴别诊断中的应用价值。
Objective to study the enhancement of color Doppler signals on hepatic neoplasms with intravenous ultrasound contrast agent and to evaluate the significance in diagnosis of hepatic neoplasms.
目的评价谐波能量显像（HPI）在正常肝脏声学造影中的造影增强效果，并与彩色多普勒血流显像（CDFI）进行对比。
Objective To assess normal liver contrast color enhancement using harmonic power imaging (HPI), comparative studies between HPI and color Doppler flow imaging (CDFI) were performed.
目的应用超声造影观察门静脉右支开始显影时间，以及彩色多普勒流速剖面技术检测门静脉右支血流速度和血流量，以探讨其在判断肝硬化程度中的临床价值。
Aim: To probe the clinical value in the assessment of liver cirrhosis degree by arrival time of right portal vein with contrast-enhanced ultrasonography and velocity and flow volume with CDVP.
目的探讨经静脉声学造影剂对下肢动脉彩色血流信号的增强作用。
Objective To investigate the enhancement of color Doppler signals in lower limb arteries by intravenous ultrasound contrast agent.
结论经静脉超声造影剂能够显著增强下肢动脉彩色血流信号，有助于下肢血管病变的诊断。
Conclusions Intravenous ultrasound contrast agent could give rise color Doppler signals in lower limb arteries, and help to make lower limb artery disease diagnosis to a more accurate extent.
术后门脉系统彩色多谱勒超声及血管造影检查，向肝血流量无明显影响，分流道通畅率90%，普通ptfe者血栓形成2例。
Postoperative angiography and Doppler - Ultrasonic examination showed shunt patency in 90% of cases. Partial shunt thrombosis occurred in 2 cases in PTFE graft without supporting rings.
目的研究在彩色多普勒超声造影中肝实质性占位血流信号的改变。
Objective To evaluate the hemodynamic changes of the vascularity in hepatic focal lesions by color Doppler flow imaging techniques after intravenous injection of Levovist.
结果：注射造影剂后下肢动脉彩色血流信号迅速增多、血流束增宽。
Result: The color Doppler signals and flow width were all increased in normal lower limb arteries after the contrast agent was admitted.
目的：探讨氟碳声学造影剂对下肢动脉彩色血流信号的增强作用。
Objective: To investigate the enhancement of color Doppler signals in normal lower limb arteries by perfluorocarbon contrast agent.
目的：探讨氟碳声学造影剂对下肢动脉彩色血流信号的增强作用。
Objective: To investigate the enhancement of color Doppler signals in normal lower limb arteries by perfluorocarbon contrast agent.
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