目的：研究鼻咽癌颈转移淋巴结的彩色多普勒血流信号特征。
Purpose: To study the characteristics of Color Doppler flow signal in cervical lymph nodes with metastasis from nasopharyngeal carcinoma.
彩色多普勒表现视网膜中央动脉(CRA)红色血流信号进入肿瘤内呈分支状。
Color Doppler imaging suggested red blood flow signal of central retinal artery (CRA) branched into tumor.
方法应用彩色多普勒技术对肝脏、胆囊、胰腺、脾脏、双肾行全面检查，发现异常观察病灶大小、位置、内部回声和血流信号性质的测量。
Methods Color Doppler was applied to check liver, cholecyst, pancreas, spleen and two kidney to discover focus size, position, interior echoes and to measure the blood parameters.
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.
彩色多普勒血流成像检查，后脱离的玻璃体上均无血流信号。
There were no flow signal in the vitreous detachment body in color Doppler.
彩色多普勒显示肾内血流信号减少或无明显异常。
Renal contusion detected by Color Doppler reflected decreased or normal blood flow signal.
同时彩色多普勒检出的血流信号丰富与否也是关键，恶性肿瘤均可检出丰富血流信号。
It is also critical whether plenty of blood flow signals could be received from the color Doppler.
彩色多普勒血流显像显示过室间隔双向五彩镶嵌分流束血流信号；有肺动脉狭窄患者显示过肺动脉五彩镶嵌射流束血流信号。
Color Doppler showed bidirectional multicoloured shunt flow signal through ventricular septal, and for those with pulmonary stenosis, it showed multicoloured jet flow signal through pulmonary artery.
彩色多普勒血流成像示血流信号不明显。
彩色多普勒显示病变区呈蓝红相间的彩色血流信号，脉冲多普勒显示连续带状门脉血流频谱。
Pulsed Doppler spectra showed image of smooth continuous bands in the honeycomb or snaky black areas.
结果：前列腺癌周边血流丰富，彩色血流信号呈花环状或点棒状，多普勒频谱测值为高阻力指数特征。
Results:The blood flow was abundant around the cancer tissue. The color signal of blood flow showed garland-like or punctate. The feature of its Doppler spectrum was o…
彩色多普勒血流显像发现55个(80.9%)结节内少量点状血流信号，结节周边无明显血流信号。
Color Doppler ultrasound revealed small amount of dotted blood flow signal in 55 nodes (80.9%), with no obvious blood flow signal around nodes.
良性肿瘤多表现为边界光滑，侧缘回声减弱，彩色多普勒不能检出或检出少量星点状血流信号。
In benign tumors, smooth edges and lateral echo attenuation were demonstrated, and they were of poor blood flow signals.
方法对2732例疑诊为椎动脉型颈椎病患者行彩色多普勒超声检查观测椎动脉管腔结构、血管走行、血流信号等变化。
Methods A total of 2732 cases with highly suspected as vertebrobasilar insufficiency were applied with CDU. The vascular morphological changes and hemodynamics of the vertebral artery were observed.
方法对2732例疑诊为椎动脉型颈椎病患者行彩色多普勒超声检查观测椎动脉管腔结构、血管走行、血流信号等变化。
Methods A total of 2732 cases with highly suspected as vertebrobasilar insufficiency were applied with CDU. The vascular morphological changes and hemodynamics of the vertebral artery were observed.
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