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- continuous wave NMR spectrometer 连续波核磁共振
- pulsed Fourier transform NMR spectrometer 脉冲傅里叶变换核磁共振仪
- continuous wave CW NMR spectrometer 连续波核共振仪
- Characterizations of the obtained polyolefins by various modern analytic instruments (NMR spectrometer, GPC, Fractionation). 用各种现代分析方法（如NMR谱、GPC、分级等）对聚烯烃产物进行结构表征。研究聚合物结构与性能的关系。
- Customary methods of the automatic baseline correction for the NMR spectrometer was improved and a new method of spline function smooth excels the customary method. 本文改进了传统的nmr谱仪自动基线校正方法;建立了相应的的样条函数自动基线校正新方法.;通过计算机模拟试算证明;样条平滑方法优于传统方法
- Objective: to determine clinical value of pulsed wave Doppler tissue imaging(PW-DTI)in evaluating aortic elasticity in coronary heart disease. 目的：探讨脉冲波多普勒组织成像(PW-DTI)在评价冠心病患者主动脉弹性时的应用价值。
- Methods:Combined with pulsed wave Doppler,blood flow characteristics of 36 hepatic hemangioma in 28 patients were studied by CDE and CDFI,respectively. 方法:用CDE与CDFI观察28例(36个)肝血管瘤内的血流情况,比较两者的血流显示率。
- Methods By using the technique of CDI ultrasound, 288 cases with orbital diseases were examined to show color Doppler flow imaging and pulsed wave Doppler (PWD) spectrum. 方法 应用CDI技术对 2 88例眼眶病患者眼眶病病变内部的彩色血流显像和脉冲多普勒频谱进行检测。
- Methods 13 patients with renal artery stenosis were assess using color Doppler flow imaging(CDFI)and power Doppler imaging(PDI)and pulsed wave Doppler(PWD). 方法使用彩色多普勒血流显像(CDFI)、能量多普勒显像及脉冲多普勒频谱分析(PWD)对经血管造影证实的13例肾动脉狭窄病人进行研究。
- Objective Pulsed wave Doppler tissue imaging (PWDTI)was used to quantitively analyse left ventricular systolic function before and after revascularization. 目的采用脉冲多普勒组织成像技术(PWDTI)定量分析血管重建术前后左心室的收缩功能。
- high resolution NMR spectrometer 高分辨率核磁共振摄谱仪
- persistent wave NMR spectroscope 边疆波核磁共振波谱仪
- high resolution proton NMR spectrometer 高分辨率质子核磁共振波谱仪
- Objective: Tei index is usually measured with pulsed wave Doppler (PWD). Our aim was to assess the degree of agreement between PWD and a method based on tissue Doppler imaging (TDI) and its clinic application. 研究目的:本研究应用组织多普勒技术成像的频谱方式来评价左室Tei指数,通过与脉冲频谱多普勒的方法对比,来探讨应用组织多普勒技术来计算左室Tei指数的可行性问题及其临床应用。
- Objectives: To observe the changes on heart structure and function with echocardiogram and pulsed wave Doppler tissue imaging ( PW-DTI) in acute myocardial infarction (AMI) patients. 目的：应用心脏超声及脉冲组织多普勒成像(PW-DTI)技术定量观察急性心肌梗死患者梗死初期及随访期中心脏结构及功能的改变。
- pulse Fourier transform NMR spectrometer 脉冲傅里叶变换核磁共振(波谱)仪
- In addition,the resistant index(RI)>0.7 and the bifurcated peak on pulsed wave Doppler(PWD)of blood flows inside or peripheral of the tumors implied much more positive malignancy prediction. 另外脉冲多普勒频谱阻力指数 RI>0 .;7及峰值的“开叉”现象也具有很好的阳性预告意义。
- NMR spectrometer with superconducting magnet 超导核磁共振仪
- Methods Coronary artery opening and interior diameter were measured. The coronary diameters were traced and the blood flow characteristics were observed using 2 D echocardiography, pulsed wave Dopper and color Dopper flow imaging. 方法 利用二维超声 ( 2DE)、脉冲多普勒 (PW )、彩色多普勒血流显像 (CDFI)检测受累冠状动脉开口、内径、追踪其走行及扩张处血流特点。
- Materials and Methods: The peak systolic velocity at mitral annulus (Sa) was measured by DTI pulsed wave mode using the apical window at 4 chamber, 2 chamber and long apical views. 材料和方法:对肥厚型心肌病及正常人分别测量二尖瓣环各点收缩期峰值速度。
