CDFI可显示该区域不同方向的多色相间的彩色血流信号。
In this areas, the CDFI showed colour blood stream signal in alternating with multicolored.
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.
常规超声检查观察肾占位大小、回声、边界、有无彩色血流信号。
The size, echo, boundary and color flow signals of renal lesions were observed by conventional US.
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.
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.
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.
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.
目的：用“分数维”彩色血流信号定量法来探讨肾脏内部彩色血流信号与肾脏结构及功能的关系。
Objective: To discuss the relationships of the color Doppler signals and the structures and functions of the kidney by Fractal Dimension.
结论分数维定量参数可以准确反映彩色血流信号的丰富程度，该软件的临床应用价值值得进一步研究。
Conclusions Fractal dimensions can reflect the amount of color Doppler signals. The clinical value of this software is worthy of further researches.
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…
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.
结果：盆腔静脉曲张症患者盆腔内可见网络样无回声区及丛状或“彩球”样彩色血流信号，正常组未见上述改变。
Results: The patients with pelvic varicosis showed network like, non echo areas and plexiform or color ball shaped blood flow signals which were not found in control group.
结果1良性甲状腺肿块周边部及内部常显示稀少的彩色血流信号(77.4%)，而恶性甲状腺肿块周边部及中央部多显示丰富的彩色血流信号(82 . 1 %)。
Result There were rare color flow signal on the circumference and inside benign tumors (77.4%). There were rich color flow signal on the circumference and inside malignant tumors (82.1%).
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.
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.
彩色多普勤血流显像显示胎盘剥离区无血流信号。
No signals of blood flow was shown the abruption area of placenta by color Doppler flow image.
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.
计算机仿真超声彩色血流图像，可以为各种超声彩色血流图像处理方法的性能比较提供有效的信号源。
Computer simulated ultrasound color flow images could be used as efficient signal sources for the evaluation of various ultrasound flow image processing methods.
方法超声彩色血流成像计算机仿真中，血流信号是对成像区间内所有点散射体的回波信号累加而得到的。
Methods in the computer simulation of the ultrasound color flow imaging, flow signals are obtained by accumulating all the echo signals of scatterers in the imaging area.
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.
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.
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.
彩色多普勒血流成像示血流信号不明显。
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.
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.
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.
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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