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    Automated identification of cardiac events with medical ultrasound
    3.
    发明授权
    Automated identification of cardiac events with medical ultrasound 有权
    用医学超声自动识别心脏事件

    公开(公告)号：US07695439B2

    公开(公告)日：2010-04-13

    申请号：US11210212

    申请日：2005-08-22

    申请人： John I. Jackson ,  Lei Sui

    发明人： John I. Jackson ,  Lei Sui

    IPC分类号： A61B8/00

    CPC分类号： A61B8/08 ,  A61B5/11 ,  A61B6/503 ,  A61B8/06 ,  A61B8/0883 ,  A61B8/12 ,  A61B8/463 ,  A61B8/469 ,  A61B8/488

    摘要： Automated analysis of ultrasound data is provided to extract event times, such as valve opening and closing times. Different types of ultrasound data, such as B-mode, M-mode, tissue velocity or flow velocity, are processed by a processor to identify automatically the event times. The event times are used for the processing of ultrasound data or to assist diagnosis. The event times may be used to estimate other event times in different heart cycles, such as with interpolation or extrapolation.

    摘要翻译： 提供超声数据的自动分析，以提取事件时间，如开阀和关闭时间。 处理器处理不同类型的超声数据，例如B模式，M模式，组织速度或流速，以自动识别事件时间。 事件时间用于处理超声数据或辅助诊断。 事件时间可以用于估计不同心脏周期中的其他事件时间，例如使用插值或外推。

    Extended volume ultrasound data display and measurement
    4.
    发明申请
    Extended volume ultrasound data display and measurement 审中-公开
    扩展体积超声数据显示和测量

    公开(公告)号：US20070255137A1

    公开(公告)日：2007-11-01

    申请号：US11415587

    申请日：2006-05-01

    申请人： Lei Sui ,  Arun Tirumalai

    发明人： Lei Sui ,  Arun Tirumalai

    IPC分类号： A61B8/00

    CPC分类号： A61B8/00 ,  A61B8/4254 ,  A61B8/483 ,  G01S7/52065 ,  G01S15/8993

    摘要： Three-dimensional ultrasound data acquisition is provided for extended field of view imaging or processing. The relative position of two or more three-dimensional volumes is determined using two-dimensional processes. For example, differences in position along two non-parallel planes are determined. By combining the vectors from the two differences, a relative position of the three-dimensional volumes is determined. Other features include calculating a value, such as a volume or distance, as a function of a relative position of two or more volumes, generating a two-dimensional extended field of view or multiplanar reconstruction as a function of a relative position without necessarily forming a three-dimensional extended field of view, and accounting for physiological phase for determining relative position or combining data representing different volumes.

    摘要翻译： 提供三维超声数据采集用于扩展视野成像或处理。 使用二维过程确定两个或更多个三维体积的相对位置。 例如，确定沿着两个非平行平面的位置差异。 通过组合来自两个差异的向量，确定三维体积的相对位置。 其他特征包括根据两个或多个体积的相对位置计算诸如体积或距离的值，产生作为相对位置的函数的二维扩展视野或多平面重建，而不必形成 三维扩展视野，并考虑用于确定相对位置或组合表示不同体积的数据的生理阶段。

    Ultrasonic flow measurement system
    5.
    发明授权
    Ultrasonic flow measurement system 有权
    超声波流量测量系统

    公开(公告)号：US09003894B2

    公开(公告)日：2015-04-14

    申请号：US13455830

    申请日：2012-04-25

    申请人： Lei Sui ,  Toan Huu Nguyen ,  Evan Lawrence Ross ,  Alexander Michael Zorn

    发明人： Lei Sui ,  Toan Huu Nguyen ,  Evan Lawrence Ross ,  Alexander Michael Zorn

    IPC分类号： G01F1/20 ,  G01F1/66

    CPC分类号： G01F1/662

    摘要： An ultrasonic flow measurement system having a first ultrasonic sensor with a first ultrasonic buffer and a second ultrasonic sensor with a second ultrasonic buffer is disclosed. The first and second ultrasonic buffers have different cross sections in order to reduce distortion of the ultrasonic signals.

    摘要翻译： 公开了一种具有第一超声波传感器和第二超声波缓冲器的超声波流量测量系统，该超声波传感器具有第一超声波缓冲器和具有第二 第一和第二超声波缓冲器具有不同的横截面以减少超声波信号的失真。

    Dynamic steered spatial compounding in ultrasound imaging
    6.
    发明授权
    Dynamic steered spatial compounding in ultrasound imaging 有权
    超声成像中的动态空间复合

    公开(公告)号：US08891840B2

    公开(公告)日：2014-11-18

    申请号：US13372229

    申请日：2012-02-13

    申请人： Lei Sui ,  Rushabh Modi

    发明人： Lei Sui ,  Rushabh Modi

    IPC分类号： G06T7/00 ,  G06T11/00 ,  A61B8/00

    CPC分类号： G06T5/50 ,  G06T5/002 ,  G06T2207/10132 ,  G06T2207/20182 ,  G06T2207/20216

    摘要： Dynamic steered spatial compounding is provided in ultrasound imaging. The compounding adjusts for variance. The compounding dynamically reacts to variance due to motion and/or view direction. For each location, the weights are set based on the motion or signal variance for the respective location. The weighting used for compounding or the results of the compounding adapt to maintain or increase signal fidelity.

    摘要翻译： 在超声成像中提供动态转向空间复合。 复合调整方差。 混合动态地由于运动和/或视图方向而对变化做出反应。 对于每个位置，基于相应位置的运动或信号方差来设定权重。 用于复合的加权或复合的结果适应于维持或提高信号保真度。

    METHOD AND APPARTUS FOR DETERMINING FLOW VELOCITY
    7.
    发明申请
    METHOD AND APPARTUS FOR DETERMINING FLOW VELOCITY 有权
    用于确定流速的方法和方法

    公开(公告)号：US20130174669A1

    公开(公告)日：2013-07-11

    申请号：US13347232

    申请日：2012-01-10

    申请人： Lei Sui ,  James Michael Korba ,  Toan Huu Nguyen ,  Generoso Polcaro

    发明人： Lei Sui ,  James Michael Korba ,  Toan Huu Nguyen ,  Generoso Polcaro

    IPC分类号： G01F1/66

    CPC分类号： G01F1/667

    摘要： A multimode flow meter can use both the time-of-transit of upstream and downstream ultrasonic signals and time for transmission of downstream-only signals to determine a flow velocity of a medium flowing through a conduit. Based on factors, such as previously computed flow velocity and signal-to-noise ratio of the upstream signal, a mode of operation may be switched and only the time for transmission of the downstream signals may be used to determine flow velocity. The multimode flow meter can computer cross-flow to reduce its effect on the determination of flow velocity.

    摘要翻译： 多模式流量计可以同时使用上游和下游超声波信号的传输时间和传输仅下游信号的时间，以确定流过导管的介质的流速。 基于先前计算的上游信号的流速和信噪比等因素，可以切换操作模式，并且可以仅使用下游信号的传输时间来确定流速。 多模流量计可以进行计算机交叉流动，以减少其对流速测定的影响。

    METHOD AND SYSTEM OF CHARACTERIZATION OF CAROTID PLAQUE
    8.
    发明申请
    METHOD AND SYSTEM OF CHARACTERIZATION OF CAROTID PLAQUE 审中-公开
    CAROTID PLAQUE的表征方法与系统

    公开(公告)号：US20130046168A1

    公开(公告)日：2013-02-21

    申请号：US13211487

    申请日：2011-08-17

    申请人： Lei Sui

    发明人： Lei Sui

    IPC分类号： A61B8/00 ,  A61B5/055 ,  A61B5/00

    CPC分类号： G06K9/52 ,  A61B5/0035 ,  A61B5/055 ,  A61B8/06 ,  A61B8/0858 ,  A61B8/0891 ,  A61B8/14 ,  A61B8/488 ,  A61B8/5223 ,  A61B8/5261 ,  A61B8/5284 ,  G06T7/11 ,  G06T7/45 ,  G06T2207/10132 ,  G06T2207/20081 ,  G06T2207/30101

    摘要： A system and method of obtaining and analyzing ultrasound images of a patient provides for the identification of specific tissue types in using the image data. A feature vector set of sub-regions of the region of interest is obtained, dimensionally reduced and evaluated using a heuristic to identify the tissue type. Where the tissue type is suitable for image standardization, the overall gray scale of the image is adjusted with respect to a predetermined gray scale for the identified tissue type. The image may be segmented and plaque regions identified and characterized. The characterized plaque and other parameters such as percent stenosis may be used to determine a risk score for the patient.

    摘要翻译： 获得和分析患者的超声图像的系统和方法提供了在使用图像数据时识别特定组织类型。 获得感兴趣区域的子区域的特征向量集，使用启发式进行尺寸缩小和评估以识别组织类型。 在组织类型适合于图像标准化的情况下，针对所识别的组织类型，相对于预定灰度调整图像的总体灰度。 图像可以被分割并且斑块区域被识别和表征。 特征性斑块和其他参数如狭窄百分比可用于确定患者的风险评分。

    Ultrasonic flow meter
    9.
    发明授权
    Ultrasonic flow meter 有权
    超声波流量计

    公开(公告)号：US07658114B1

    公开(公告)日：2010-02-09

    申请号：US12272174

    申请日：2008-11-17

    申请人： Lei Sui ,  Toan Nguyen

    发明人： Lei Sui ,  Toan Nguyen

    IPC分类号： G01F1/66

    CPC分类号： G01F1/668 ,  G01F1/667

    摘要： In one embodiment, an ultrasonic flow meter is provided for measuring a flow rate of a medium flowing through a conduit, the ultrasonic flow meter comprising two ultrasonic emitters and two ultrasonic receivers mounted to the conduit. The flow rate is determined based on a first time interval of a first ultrasonic signal traveling from the first ultrasonic emitter to the first ultrasonic receiver, and a second time interval of a second ultrasonic signal traveling from the second ultrasonic emitter to the second ultrasonic receiver. In some embodiments, the first and second ultrasonic signals travel in a downstream direction with respect to the flow. In other embodiments, the first ultrasonic signal travels along a first transmission path that forms a first angle between the first transmission path and the flow direction, while the second ultrasonic signal travels along a second transmission path that forms a second and different angle between the second transmission path and the flow direction.

    摘要翻译： 在一个实施例中，提供超声波流量计用于测量流过导管的介质的流速，超声波流量计包括两个超声波发射器和安装到导管的两个超声波接收器。 基于从第一超声波发射器行进到第一超声波接收器的第一超声波信号的第一时间间隔和从第二超声波发射器行进到第二超声波接收器的第二超声波信号的第二时间间隔来确定流量。 在一些实施例中，第一和第二超声波信号相对于流动沿下游方向行进。 在其他实施例中，第一超声波信号沿着第一传输路径传播，该第一传输路径在第一传输路径和流动方向之间形成第一角度，而第二超声波信号沿第二传输路径行进，第二传输路径在第二传输路径之间形成第二和不同的角度 传输路径和流向。