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doppler
相关语句
  多普勒
    Experimental Study of Evaluation of Vascular Remodeling With Doppler Ultrasound Measuring Shear Stress in the Hypercholesterolemic and Atherosclerotic Rabbits
    多普勒超声检测血流剪切力评价动脉粥样硬化血管重构的实验研究
短句来源
    The Research on the Influences of Cardiac Motion and Respiration on the Determination of Doppler Flow Parameters
    心脏运动和呼吸对多普勒血流参数测定影响的研究
短句来源
    Experimental and Clinical Studies of Power Doppler Imaging
    能量多普勒显像的实验和临床研究
短句来源
    Experimental and Clinical Studies of Color Doppler Flow Quantification
    彩色多普勒血流定量的实验和临床研究
短句来源
    Flow Velocities of Atrioventricular and Semilunar Valvular Orifices Measured By Ultrasound pulsed Doppler spectra in 1119 Normal Adults
    超声脉冲多普勒频谱测量1119例正常成人房室瓣口、半月瓣口血流速度
短句来源
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  多普勒超声
    Experimental Study of Evaluation of Vascular Remodeling With Doppler Ultrasound Measuring Shear Stress in the Hypercholesterolemic and Atherosclerotic Rabbits
    多普勒超声检测血流剪切力评价动脉粥样硬化血管重构的实验研究
短句来源
    New Index of Pulmonary Artery Pressure Estimated by Doppler Echocardiogaphy
    多普勒超声估价肺动脉压力的新指标
短句来源
    Experimental Study of Measurement of Velocity and Relevant Influence Factors for Common Carotid of -Rabbits By Doppler Ultrasqund
    多普勒超声测定家兔颈总动脉血流速度及影响血流速度因素的实验研究
短句来源
    Application of the Color and Pulsed Doppler Ultrasound in Diagnosis of Arterial Pathologial Changes of the Lower Limb in Diabetes Mellitus Patient
    彩色及脉冲多普勒超声在糖尿病下肢动脉病变诊断中的应用
短句来源
    A Doppler Sonographic Study of 94 Cases on Fetal Umbilical Arterial Blood Flow Waveform Systolic/Diastolic Value
    多普勒超声对94例脐动脉血流频谱S/D值的研究
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  “doppler”译为未确定词的双语例句
    Evaluating Prosthetic Heart Valve Hemodynamics by Doppler Echocardiography
    Doppler超声心动图评价人工心脏瓣膜血流动力学研究
短句来源
    Ultrasonic Doppler Aussculation of the Heart
    心脏听诊的Doppler技术
短句来源
    Uitrasound Doppler Analysis in 178 Cases of Congenital Heart Diseases
    多功能超声心动图对178例先天性心脏病的诊断分析
短句来源
    Duplex Doppler Sonography for Caroli's Diseases "Periportal Fibrosis Type"
    Caroli'S病“门静脉周围纤维化型”的双功能超声诊断
短句来源
    Applid Anatomical Study on Transcranial Doppler(TCD) Examination of Cerebro-Vascular Disease
    TCD检测脑血管病的应用解剖学研究
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  doppler
Using techniques from microlocal analysis, we study the problem of recovering the wavefront set of $\mbox{curl}(F)$ from that of the restricted Doppler transform of $F$.
      
A principle for choosing the coherent integration number and an improved Doppler beam sharpening (DBS) imaging algorithm for mechanic scanning radar are presented in this paper.
      
PRF-ambiguity resolution for SAR by contrast minimization in range-Doppler domain
      
An algorithm was developed to accurately estimate the Doppler centroid, which is needed for high-quality synthetic aperture radar (SAR) image formation by resolving the SAR pulse repetition frequency (PRF) ambiguity.
      
The algorithm uses the SAR range migration to resolve the PRF-ambiguity by searching for a PRF-ambiguity number that minimizes the intensity contrast in the range-Doppler domain.
      
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To evaluate its diagnostic usefulness, 199 2D-pulsed Doppler Echocardiography(2D-PDE)were performed in 190 consecutive patients(pts) undergoing catheterisation and/or angiography (cath-angio), regarding a total of 538 lesions. The series of pts included valvular heart disease (95 pts) , congenital heart disease (44 pts), cardiomyopathy (14 pts), coronary artery disease (9 pts) and heart murmur (28 pts). Tricuspid and pulmonary regurgitation, and aortic regurgitaton in the presence of mitrol prosthesis...

To evaluate its diagnostic usefulness, 199 2D-pulsed Doppler Echocardiography(2D-PDE)were performed in 190 consecutive patients(pts) undergoing catheterisation and/or angiography (cath-angio), regarding a total of 538 lesions. The series of pts included valvular heart disease (95 pts) , congenital heart disease (44 pts), cardiomyopathy (14 pts), coronary artery disease (9 pts) and heart murmur (28 pts). Tricuspid and pulmonary regurgitation, and aortic regurgitaton in the presence of mitrol prosthesis were excluded fron this study becanse of the limitation of eithor cath-angio or 2D-PDE. Results: 2D-PDE diagnosed 213 of 245 lesions confirmed by cath-angio (sensitivity 87%) and demonstrated the absence of 284 of 293 lesions excluded by cath-angio (specificity 97%). In conclusion, 2D-PDE in an accurate technigue of high sensitivi ty and specificity in the diagnosis of cardiovascular diseases.

本文应用二维-脉冲多普勒超声心动图对199例探查和538例病损探查结果进行了分析,认为多普勒探测病损诊断的敏感性为87%,特异性为97% 本文还对假阳性,假阴性病例作了具体分析。总之认为二维-脉冲多普勒已逐渐成为临床诊断心血管疾病的有用工具,在临床常规检查中有很高的诊断正确性 但由于技术上的限制,仍可造成少数假阳性和假阴性结果。

Noninvasive measurement of portal vein volumetric flow under physiological condition by using pulsed doppler ultraso-nograph was practically performed. This is very important for understanding liver function and early diagnosis of cirrhosis of liver.portal veins of 60 normal persons were measured. Cross-sectional area of portal vein is 1.31±0.52cm2. Flow velocity of portal vein is 20.8±54.1cm/sec. Volumetric flow of portal vein is 909.58ml ±299.81ml/min. There were 30 persons in the male group and 30 persons...

Noninvasive measurement of portal vein volumetric flow under physiological condition by using pulsed doppler ultraso-nograph was practically performed. This is very important for understanding liver function and early diagnosis of cirrhosis of liver.portal veins of 60 normal persons were measured. Cross-sectional area of portal vein is 1.31±0.52cm2. Flow velocity of portal vein is 20.8±54.1cm/sec. Volumetric flow of portal vein is 909.58ml ±299.81ml/min. There were 30 persons in the male group and 30 persons in the female group. There are significant differences in cross-sectional area and volumetric flow between the two groups. There are no significant differences in the volumetric flow of portal vein per square meter body surface between healthy males and females.

应用超声脉冲多普勒显像仪,实现了在生理条件下,非创伤性的测定门静脉的血流量,这对了解肝脏的功能和肝硬化的早期诊断十分重要。 超声脉冲多普勒测定60例正常成人,男女各半。门静脉截面积为1.31±0.52cm~2;门静脉的血流速度为20.8±5.41cm/秒;门静脉的血流量为909.58±299.81ml/分。男女组间门静脉截面积和门静脉血流量有显著差异;每平方米体表面积门静脉血流量无显著差异。

This paper reports that the patients with cor pulmonale are accompanied with the returning flow of the pulmonic valves and the tricuspid valves.The study was carried out by comparing pulsed Doppler echo-cardiography performance on 22 patients with cor pulmonale, 14 with pulmonary emphysema as well as 15 normal subjects. The result shows that 19(86.36%) patients with cor pulmonale are accompanied with the returning flow of the pulmonic valve and 15(68.18%)with the same abnormal flow of the tricuspid valves....

This paper reports that the patients with cor pulmonale are accompanied with the returning flow of the pulmonic valves and the tricuspid valves.The study was carried out by comparing pulsed Doppler echo-cardiography performance on 22 patients with cor pulmonale, 14 with pulmonary emphysema as well as 15 normal subjects. The result shows that 19(86.36%) patients with cor pulmonale are accompanied with the returning flow of the pulmonic valve and 15(68.18%)with the same abnormal flow of the tricuspid valves. The patients with pulmonary emphysema are also accompanied with the returning flow of the two kinds of the valves, amounting to 28.57% (4 cases) and 14.28%(2 cases) respectively.The paper mainly discusses three problems.. (1) the diognostic value of pulsed Doppler echocardiography in cor pulmonale, (2) the mechanism of the returning flow of the pulmonic valve or/and the tricuspid valve in cor pulmonale, and (3) the major technical problems of pulsed Doppler performance in cor pulmonale.

本文通过肺心病(22例)、肺气肿(14例)和正常人(15例)的脉冲多普勃超声心动图检测,结果显示肺心病患者存在肺动脉瓣返流与三尖瓣反流分别为19/22例(86.36%)与15/22例(63.18%),肺气肿患者也有4/14例(28.57%)与2/14例(14.28%)存在肺动脉瓣和三尖瓣返流。文中还着重讨沦:(1)脉冲多普勒超声心动图对肺心病诊断价值;(2)肺心病产生肺动脉瓣或/和三尖瓣返流机理;(3)肺心病脉冲多普勒检测技术要点。

 
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