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。
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.
治疗后eeg异常率下降到15.2%，血流速度及搏动指数降低，血管杂音消失。
EEG abnormality rate was 15.2%, flow velocity and pulsatility index were reduced and the vascular murmur disappeared after treatment.
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。
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.
如果肢体血流灌注良好但是两边脉搏搏动是不对称的或者abi、US检查不正常，那就需要请血管外科医生会诊，同时行动脉造影检查。
If the limb is still well perfused but the pulses are asymmetric or ABI is abnormal or us is abnormal then consult vascular surgery and obtain arteriogram.
该仪器可测定单一血管血流速度、血管直径和搏动幅度。
The LDMV was used to measure steady blood flow velocity, diameter of vessels and pulsation flow.
分析病变处血流的搏动指数(PI)和阻力指数(R I)与病理组织学结果的关系。
Lesion vascularity, pulsatility index (PI), and resistive index (ri) of the vessels detected were analyzed. And correlated with histologic results.
对搏动指数（PI）和阻力指数（RI）用于评价透析血管血流动力学方面的变化作了初步分析。
The result demonstrated the accordance of this two methods. The dynamics of blood flow in hemodialysis vascularity was evaluated by pulsatility index(PI) and resistence index(RI).
治疗组经治疗后双侧大脑前、中、后动脉平均血流速度及搏动指数均有明显改善，与对照组比较差异有显著性(P ？ 0.05)。
Treatment group after therapy, bilateral before, during and after the brain artery blood pulsing index and average will be improved obviously, compared with the control group (p? 0. 05).
治疗组经治疗后双侧大脑前、中、后动脉平均血流速度及搏动指数均有明显改善，与对照组比较差异有显著性(P ？ 0.05)。
Treatment group after therapy, bilateral before, during and after the brain artery blood pulsing index and average will be improved obviously, compared with the control group (p? 0. 05).
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