Fudan University In this paper a 8031 single-chip system for FFT is described. Some results of real-time display and analysis of ultrasound Doppler flow sonography using this system are also given.
本文介绍一种实现傅立叶快速变换的8031单片系统，并给出该系统实时显示和分析超声多普勒血流信号声谱的一些结果。
Doppler ultrasound shows that acupuncture increases blood flow in treated areas. Thermal imaging shows that it can make inflammation subside.
多普勒超声技术显示，针灸能增强治疗部位的血液循环；红外热成像技术显示，针灸能促使炎症消退。
Objective To evaluate the reliability and efficacy of high intensity focused ultrasound (HIFU) on treatment of osteosarcoma by color Doppler flow imaging (CDFI) surveillance.
目的评价超声监控高强度聚焦超声(HIFU)治疗骨肉瘤的可靠性及其治疗后随访的实用价值。
Quadrature phase method is one of the important methods in directional blood flow information detection using Doppler ultrasound techniques.
正交相位法是超声多普勒技术中提取双向性血流信息的一种重要方法。
Objective:To assess the feasibility and clinical significance of cerebral blood flow infusion by measurement of lenticulostriate artery in neonates by Doppler ultrasound.
目的：研究应用彩色多普勒超声检测新生儿豆纹动脉血流的可行性及其评价脑血液灌注的临床意义。
Color-Flow Doppler Ultrasound measures the severity of peripheral vascular disease and is used by Cardiology for dynamic evaluation of the heart, heart valves and major vessels.
彩色血流多普勒超声措施，周围血管疾病的严重性，并用于心脏病的心脏，心脏瓣膜及大血管的动态评价。
In medical Doppler ultrasound systems, a high-pass filter is usually employed to remove wall clutter components which may also remove the information of the low velocity blood flow.
医学超声多普勒系统的高通滤波器在消除血管壁搏动带来的回波干扰时，也滤除了低速血流信息。
Methods 312 knee joint in 156 patients with ra were studied with high-frequency ultrasound and color doppler flow imaging.
方法选择156例RA患者312个膝关节行高频超声检查，观察二维声像图和彩色多普勒血流成像特征。
Methods 70 cases pregnant women (pregnant age ranging from 13 to 40 weeks) were examined by color Doppler ultrasound to measure the umbilical artery blood flow quantities of the normal foetuses.
方法应用彩色多普勒超声检测70例孕妇（孕13～40周）的正常胎儿的脐动脉血流量。
As an important branch of medical ultrasound, Doppler ultrasound blood flow detection technology is a significant in lossless diagnosis for the disease of blood circulation system.
超声多普勒血流检测技术是医学超声的一个重要分支，它是无损诊断血管疾病的一种重要手段。
Objective To observe the fetal blood flow changes in the liver portal vein system by color ultrasound Doppler.
目的应用多普勒超声监测胎儿时期肝内门脉系统的血流参数。
Objective To detect the diagnostic value of two dimensional ultrasound and color Doppler flow imaging (CDFI) in thyroid disease.
目的：探讨二维超声与彩色多普勒血流显像(CDFI)对甲状腺疾病的诊断价值。
In this paper, a novel method was studied to diagnose the vessel disease using the feature of the maximum frequency waveform from the blood flow ultrasound Doppler signals.
文章主要研究从超声多普勒血流信号的最大频率曲线中提取特征值，并用于临床血管疾病诊断的方法。
The spectrogram envelop of Doppler ultrasound blood flow signals from which spectrogram parameters can be estimated is important to clinical diagnosis of cardiovascular diseases.
超声多普勒血流信号声谱图包络是声谱参数提取的基础，能为临床心血管疾病的诊断提供重要信息。
A dynamic programming algorithm based on the global optimization is presented to extract the maximum frequency waveform of the Doppler ultrasound blood flow signal.
提出一种基于全局优化的动态规划算法以进行超声多普勒血流信号最大频率曲线的提取。
Objective To evaluate the value of ultrasound Doppler renal blood flow measurement in diagnosing early renal damage of hypertension.
目的探讨多普勒超声肾血流测定对诊断高血压病早期肾损害的价值。
Objective:To evaluate the value of ultrasound Doppler renal blood flow measurement in diagnosing early renal damage of hypertension.
目的探讨超声多普勒肾血流测定评价高血压病早期肾损害的价值。
Conclusion the information of umbilical artery blood flow quantity gained by color Doppler ultrasound may play an important role in evaluating the function of placenta.
结论由彩色多普勒超声获得的脐动脉血流量信息，在评价胎盘功能中起着重要作用。
A nonlinear filtering method based on principle component analysis (PCA) was proposed according to the statistical characteristics of the Doppler ultrasound blood flow signal and wall thump signal.
根据超声多普勒血流信号和血管壁搏动信号的统计特性，提出了一种基于主元分析的非线性滤波方法。
Objective To investigate the value of high frequency ultrasound (HFUS) and color Doppler flow imaging (CDFI) in the diagnosis and clinical treatment of children intussusception.
目的探讨高频超声结合彩色多普勒超声(CDFI)对小儿肠套叠的诊断及临床意义。
Several important problems in volume flow measurements with Doppler ultrasound were analyzed in this paper.
分析了多普勒超声在血流量测定中的若干重要问题。
Methods: Using two-dimensional ultrasound, Doppler ultrasound and color Doppler flow image (CDFI) to check 26 cases of renal angiomyolipoma.
方法：应用二维超声、彩色多普勒血流图(CDFI)，检测26例肾血管平滑肌脂肪瘤。
Results Benign and malignant tumors in cervicofacial soft tissues had different characteristics in the two dimension ultrasound and colour doppler blood flow imaging.
结果面颈部软组织良、恶性肿瘤在二维超声、彩色多普勒血流显像两方面具有不同的特征。
Objictive To assess the value of 2d ultrasound (2d US) and color Doppler flow imaging (CDFI) sonographic features in the diagnosis of breast cancer.
目的探讨二维超声及彩色多普勒血流显像(CDFI)检查对乳腺癌的诊断价值。
Thyroid diseases were studied and compared with 20cases of healthy person using Doppler ultrasound (Color Doppler Flow Imaging).
应用CDFI超声对甲状腺疾病进行血流检测，并与20例健康者对照。
Objective To recognize the ultrasound characterizations of intracardiac leiomyomatosis (ICL), and discuss the value of color Doppler flow imaging (CDFI) in diagnosing ICL.
目的认识心内平滑肌瘤病（ICL）的彩色多普勒血流成像（CDFI）图像特点，探讨CDFI诊断ICL的临床应用价值。
Objective To evaluate the value of two-dimensional ultrasound (2-dus) and color Doppler flow imaging (CDFI) in the diagnosis of neck arteriosclerosis.
目的探讨二维及彩色多普勒超声在颈动脉粥样硬化病变中的诊断价值。
Objective in vivo study was performed using color Doppler ultrasound to evaluate the effect of artery filter on swine's carotid blood flow.
目的应用彩色多普勒超声观察动脉滤器对活体猪颈动脉血流的影响。
Conclusions Examining blood flow velocity waveforms of UmA by Color Doppler ultrasound was one of the best method to early diagnose and predict the prognosis of IUGR.
结论彩色多普勒超声可直接测定脐动脉血液循环，能在早期诊断IUGR、判断病情及估计预后。
Conclusions Examining blood flow velocity waveforms of UmA by Color Doppler ultrasound was one of the best method to early diagnose and predict the prognosis of IUGR.
结论彩色多普勒超声可直接测定脐动脉血液循环，能在早期诊断IUGR、判断病情及估计预后。
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