Multiple beam spectral doppler in medical diagnostic ultrasound imaging
    11.
    发明授权
    Multiple beam spectral doppler in medical diagnostic ultrasound imaging 有权
    多光束多普勒在医学诊断超声成像中的应用

    公开(公告)号:US09398898B2

    公开(公告)日:2016-07-26

    申请号:US13032834

    申请日:2011-02-23

    摘要: Spatially distinct Spectral Doppler information is acquired. Spatially distinct transmit beams are formed at a same time or in parallel. One or more receive beams are formed in response to each transmit beam, providing samples for a plurality of laterally spaced locations. A spectrum is determined for each of a plurality of spatial locations. In another approach, samples are acquired for different regions at different times. The scanning for each region is interleaved based on the anatomic operation. Since spectral estimation relies on a time-continuous series of transmission and reception, the scanning for a region occurs over a sufficient period for spectral estimation before the scanning for a different region occurs. By using anatomic operation, sufficient time is provided for spectral estimation. Due to anatomic operation, different regions are associated with flow at different times.

    摘要翻译: 获取空间不同的光谱多普勒信息。 空间不同的发射光束同时或并行地形成。 响应于每个发射束形成一个或多个接收波束,为多个横向间隔的位置提供采样。 为多个空间位置中的每一个确定频谱。 在另一种方法中,在不同时间针对不同区域采集样本。 基于解剖操作对每个区域进行扫描。 由于频谱估计依赖于时间连续的发射和接收序列,所以在针对不同区域的扫描发生之前,区域的扫描发生在足够的时间段用于谱估计。 通过使用解剖操作,为光谱估计提供足够的时间。 由于解剖操作,不同的区域与不同时间的流量有关。

    Flow quantification in ultrasound using conditional random fields with global consistency
    12.
    发明授权
    Flow quantification in ultrasound using conditional random fields with global consistency 有权
    超声波流量定量使用具有全局一致性的条件随机场

    公开(公告)号:US09033883B2

    公开(公告)日:2015-05-19

    申请号:US13682272

    申请日:2012-11-20

    摘要: Velocities are unaliased using conditional random fields. To constrain the energy minimization function, a global term includes a measure of a level of aliasing. In one example, the measure of the level of aliasing is based on a change in volume, such as the volume of the left ventricle. The unaliasing is performed along one or more surfaces, such as surfaces intersecting the mitral annulus and the left ventricle outflow tract. The anatomy used is identified and/or tracked using one or more machine-learnt detectors. Both B-mode and velocity information may be used for detecting the anatomy.

    摘要翻译: 速度是使用条件随机字段来进行的。 为了约束能量最小化函数,一个全局术语包括一个混叠级别的度量。 在一个示例中,混叠级别的度量取决于体积的变化,例如左心室的体积。 沿着一个或多个表面(例如与二尖瓣环和左心室流出道相交的表面)进行排列。 使用的解剖结构使用一个或多个机器学习的检测器来识别和/或跟踪。 B模式和速度信息都可用于检测解剖结构。

    Cardiac flow quantification with volumetric imaging data
    13.
    发明授权
    Cardiac flow quantification with volumetric imaging data 有权
    心脏流量定量与体积成像数据

    公开(公告)号:US08696579B2

    公开(公告)日:2014-04-15

    申请号:US13151803

    申请日:2011-06-02

    IPC分类号: A61B8/00

    摘要: A method quantifies cardiac volume flow for an imaging sequence. The method includes receiving data representing three-dimensions and color Doppler flow data over a plurality of frames, constructing a ventricular model based on the data representing three-dimensions for the plurality of frames, the ventricular model including a sampling plane configured to measure the cardiac volume flow, computing volume flow samples based on the sampling plane and the color Doppler flow data, and correcting the volume flow samples for aliasing based on volumetric change in the ventricular model between successive frames of the plurality of frames.

    摘要翻译: 一种方法量化成像序列的心脏体积流量。 该方法包括在多个帧上接收表示三维和彩色多普勒流数据的数据,基于代表多个帧的三维的数据构建心室模型,心室模型包括被配置成测量心脏的采样平面 体积流量,基于采样平面和彩色多普勒流数据的计算体积流量样本,以及基于多个帧的连续帧之间的心室模型的体积变化来校正用于混叠的体积流量样本。

    Perfusion Imaging of a Volume in Medical Diagnostic Ultrasound
    15.
    发明申请
    Perfusion Imaging of a Volume in Medical Diagnostic Ultrasound 审中-公开
    医学诊断超声的体积灌注成像

    公开(公告)号:US20110144495A1

    公开(公告)日:2011-06-16

    申请号:US12637493

    申请日:2009-12-14

    IPC分类号: A61B8/14

    摘要: A volume is scanned with ultrasound for determining perfusion. A volume is scanned with a more rapid technique for tracking a sub-volume, and the tracked sub-volume is scanned for contrast agent detection with a less rapid technique. For example, a single pulse technique or B-mode scanning is used to track a region over one or more cycles, the location of the tracked region is predicted, and multiple pulse contrast agent detection is performed for the sub-volume at the predicted location. The combinations of scanning provide for real-time or higher temporal resolution reperfusion information at the appropriate tissue. Using a separate scan for motion tracking may provide a more robust prediction of the sub-volume location and a better visualization of the results (e.g., orientation within the organ). In other embodiments, tracking is based on a B mode image derived from the multi-pulse data.

    摘要翻译: 用超声扫描体积以确定灌注。 用更快速的技术扫描体积,用于跟踪子体积,并用较不快速的技术扫描跟踪的子体积以进行造影剂检测。 例如,使用单脉冲技术或B模式扫描来跟踪一个或多个周期的区域,预测跟踪区域的位置,并且在预测位置对子体积执行多个脉冲造影剂检测 。 扫描的组合在适当的组织处提供实时或更高的时间分辨率再灌注信息。 使用用于运动跟踪的单独扫描可以提供对子体积位置的更强大的预测,并且可以更好地显示结果(例如,器官内的取向)。 在其他实施例中,跟踪是基于从多脉冲数据导出的B模式图像。