Continuous display of cardiac blood flow information
    2.
    发明公开
    Continuous display of cardiac blood flow information 失效
    Kontinuierliche Anzeige vonBlutströmungsinformationen

    公开(公告)号:EP0747010A2

    公开(公告)日:1996-12-11

    申请号:EP96304247.8

    申请日:1996-06-07

    IPC分类号: A61B8/06

    摘要: A technique for continuously determining and displaying the peak velocities of spectral Doppler information is disclosed. A Doppler noise threshold level is determined from operating characteristics of the ultrasound system, probe, or both. Received spectral Doppler data for a spectral line is compared to this threshold to identify a valid peak velocity value. Spectral lines are examined in advance of their display to detect excursions due to artifacts such as valve clicks. Peak velocity values are interpolated and displayed in place of artifact peak values. Individual heart cycles over which quantified measures of cardiovascular performance are computed and displayed are selected by the R-wave intervals of an ECG trace. The interval of the concurrent spectral Doppler display corresponding to the heart cycle interval over which the quantified measures are computed or pertain is automatically highlighted for the user.

    摘要翻译: 公开了一种用于连续地确定和显示频谱多普勒信息的峰值速度的技术。 多普勒噪声阈值水平由超声系统,探头或两者的操作特性确定。 将频谱线的接收频谱多普勒数据与该阈值进行比较,以识别有效的峰值速度值。 在其显示之前检查光谱线以检测由于诸如阀门点击的伪像引起的偏移。 峰值速度值进行内插和显示,以代替伪像峰值。 通过ECG迹线的R波间隔选择计算和显示心血管性能量化措施的个别心脏周期。 对于用户计算或计算定量测量的心脏周期间隔对应的并发频谱多普勒显示的间隔将自动突出显示。