1)Doppler Spectrum多普勒频谱
1.The blood flow of the main renal artery and segmental renal vessels before and after the sclerotherapy were measured by Doppler spectrum, meanwhile, another 20 cases were chosen as c.结论超声引导下穿刺注射99·9%乙醇治疗肾囊肿是一种安全、微创、高效、经济的治疗方法;多普勒频谱检测肾血流有助于了解肾囊肿对肾脏的影响。
2.In the algorithm the doppler spectrum of sea clutter is di- vided into the so-called platform motion spectrum and the sea-echo spectrum.文中提出新的海杂波模拟算法,该算法将海杂波的多普勒频谱分解成平台运动频谱和海面自身运动频谱,通过脱机方式计算这两个频谱分量,从而有效地减少计算量,使模拟能实时完成。
英文短句/例句
1.The Compensation for the Doppler Spectrum Centroid Deviation of the SAR合成孔径雷达多普勒频谱偏移误差的补偿
2.Doppler waveforms of the hepatic veins in patients with fatty liver脂肪肝患者肝静脉血流多普勒频谱形态的观察
3.ISAR imaging of accelerating targets based on Doppler spectrum correlation基于多普勒频谱相关的加速运动目标ISAR成像
4.Doppler spectral broadening experiment based on virtual instrument基于虚拟仪器的多普勒频谱加宽效应的实验
5.Modulation-Free Laser Frequency Locking by AOM Shifted Cesium Sub-Doppler Spectra声光偏频亚多普勒光谱无调制激光频率锁定
6.Recording of three dimensional spectrum of ultrasonicpulsed Doppler flow with micro-processor用微机描记超声脉冲多普勒血流频谱三维图
7.The Analysis of Pulsed. Doppler Flow Spectrum in the Patients with Mitral Regurgitation(MR)二尖瓣关闭不全脉冲多普勒血流频谱分析
8.EXTRACTION OF WIND FIELD FROM HIGH FREQUENCY RADAR SEA ECHO DOPPLER SPECTRA从高频雷达海面回波多普勒谱提取风场信息
9.Characteristics of spectra of superior vena cava flow Doppler velocities in pulmonary arterial hypertension肺动脉高压上腔静脉多普勒血流频谱特点
10.Carrier-frequency Capture Base on Bispectrum Estimation under Extremely Low SNR and Large Doppler Frequency Shifting极低信噪比大多普勒频移条件下基于双谱实现载频提取
11.doppler free laser spectroscopy无多普勒激光光谱学
12.satellite Doppler shift measurement卫星多普勒频移测量
13.Doppler VHF omnirange多普勒甚高频全向信标
14.Doppler-shift ocean-current meter多普勒频移海流测速仪
15.The flowing counter pulsating and volume of blood stream were showed clearly in colour doppler.彩色多普勒(Doppler)清楚显示眼上静脉血液逆向流动及搏动频谱。
16.A color flow with arterial spectrum was detected in 9 lesions (69%),and radiated wheal like color flow was visualized in 3 lesions (23%).3例彩色多普勒显示动脉频谱者占69%,呈轮辐状血流信号者占23%。
17.(5)In all views of anastomic ostium,Doppler displayed artery vein flow spectrum.(5)多普勒显示各切面吻合口处为动、静脉血流频谱。
18.Clinical Value of Coloured Doppler Flow Imaging in Monitoring Blood Flow velocity of Fetal Navel Artery彩色多普勒血流图监测胎儿脐动脉血流频谱临床价值
相关短句/例句
pulsed wave Doppler频谱多普勒
1.Methods Color Doppler flow image(CDFI) combined with pulsed wave Doppler(PW) was used to define the course of vertebral artery and determine the parameters of blood flow for comparative study between two groups: patient group(30 patients with stenotic vertebral artery's inner diameter <2.8 mm的狭窄患者30例作为病例组,另选健康自愿者30例作为对照组,分别进行彩色多普勒(CDFI)及频谱多普勒(PW)血流显像检查,观察椎动脉走向,测其内径、峰值流速(Vmax)、阻力指数(RI)。
3)Blood flow Doppler血流频谱多普勒
4)Doppler flow spectrum多普勒血流频谱
5)after kidney transplantation彩色多普勒频谱
6)blood flow Doppler spectrum血流多普勒频谱
延伸阅读
多普勒频谱分析多普勒频谱分析 超声波检查技术之一。对运动物体所产生的多普勒信号的频谱分布进行分析的技术。其目的是为了将所含频率内容与运动速度(如血流速度)联系起来。超声医学中常用的频谱分析器有多通道频谱分析器、扫掠滤波器及快速傅立叶分析器。此外，考虑到经济性与简单性，临床中还普遍采用直接从时域信号中提取与速度有关波形的时域分析法。这方面的仪器有过零计数器、峰值频率跟随器、平均速度计算器、速度剖面测量仪等。
