Angle independent doppler in ultrasound imaging
    1.
    发明授权
    Angle independent doppler in ultrasound imaging 失效
    角度独立多普勒超声成像

    公开(公告)号:US5454372A

    公开(公告)日:1995-10-03

    申请号:US261506

    申请日:1994-06-17

    摘要: Method for providing a blood flow velocity display of blood flow in a blood vessel in an ultrasound imaging system by converting spectral Doppler mode data using estimates of blood flow angle and blood flow velocity. In particular, an embodiment of a first aspect of the present invention is a method which includes the steps of: (a) transmitting an acoustic beam to a region of interest in the blood vessel from a first sub-aperture array in a transducer array; (b) receiving a first echo beam from the region of interest at the first sub-aperture array, which first echo beam is generated by the acoustic beam, and a second echo beam from the region of interest at a second sub-aperture array, which second echo beam is generated by the acoustic beam; (c) estimating a first mean Doppler frequency from the first echo beam substantially in parallel with the step of estimating a second mean Doppler frequency from the second echo beam, both steps of estimating utilizing an auto-correlation algorithm; (d) estimating the angle of blood flow and blood flow velocity in the region of interest in the blood vessel from the first and second mean Doppler frequencies; (e) obtaining data to provide a spectral Doppler mode display; (f) converting the dam to provide a blood flow velocity distribution; and (g) displaying the blood flow velocity distribution along with the estimated blood flow angle.

    摘要翻译: 用于通过使用血流角度和血流速度的估计转换频谱多普勒模式数据来在超声成像系统中提供血流在血流中的血流速度显示的方法。 特别地,本发明的第一方面的实施例是一种方法,其包括以下步骤:(a)从换能器阵列中的第一子孔阵列将声束传输到血管中的感兴趣区域; (b)从所述第一子孔径阵列处的所述感兴趣区域接收第一回波束,所述第一回波束由所述声波束产生,以及来自所述感兴趣区域的第二回波束在第二子孔径阵列处, 第二回波束由声束产生; (c)基本上与从第二回波束估计第二平均多普勒频率的步骤估计来自第一回波束的第一平均多普勒频率,两个步骤使用自相关算法进行估计; (d)从第一和第二平均多普勒频率估计血管中感兴趣区域中的血流角度和血流速度; (e)获得数据以提供频谱多普勒模式显示; (f)转换大坝以提供血流速度分布; 和(g)显示血流速度分布以及估计的血流角度。

    Relay device for transferring information between a sensor system and a fluid delivery system
    5.
    发明授权
    Relay device for transferring information between a sensor system and a fluid delivery system 有权
    用于在传感器系统和流体输送系统之间传送信息的继电器装置

    公开(公告)号:US08622954B2

    公开(公告)日:2014-01-07

    申请号:US12769590

    申请日:2010-04-28

    IPC分类号: A61M31/00 A61B5/00

    摘要: A relay device transfers information between a sensor system, which measures a physiological characteristic level of a user, and a fluid delivery system, which infuses a fluid into a user. The relay device includes a sensor system receiver for receiving communications from the sensor system in a sensor system format. The relay device also includes a processor for processing the communications from the sensor system and converting the communications for transmission in a delivery system format. The relay device further includes a delivery system transmitter for transmitting the converted communications in the delivery system format to the fluid delivery system. The sensor system and delivery system formats may utilize different frequencies and/or different communication protocols for communications transmitted between the sensor system and the fluid delivery system through the relay device.

    摘要翻译: 中继装置在测量用户的生理特征水平的传感器系统和将流体注入用户之间的流体输送系统之间传送信息。 所述中继装置包括用于以传感器系统格式从所述传感器系统接收通信的传感器系统接收器。 中继设备还包括处理器,用于处理来自传感器系统的通信,并以传送系统格式转换通信以进行传输。 中继装置还包括一个传送系统发射器,用于将传送系统格式的转换的通信传送到流体输送系统。 传感器系统和传送系统格式可以利用不同的频率和/或不同的通信协议,用于通过中继设备在传感器系统和流体传送系统之间传输的通信。