Echo particle image velocity (EPIV) and echo particle tracking velocimetry (EPTV) system and method
    1.
    发明申请
    Echo particle image velocity (EPIV) and echo particle tracking velocimetry (EPTV) system and method 审中-公开
    回波粒子图像速度(EPIV)和回波粒子跟踪测速(E​​PTV)系统及方法

    公开(公告)号:US20080015440A1

    公开(公告)日:2008-01-17

    申请号:US11777412

    申请日:2007-07-13

    IPC分类号: A61B8/00

    摘要: A system and method for detecting fluid flow. An ultrasound system comprises a signal generator providing ultrasound firing sequences applied to a linear array transducer. The transducer generating ultrasound energy applied to the fluid flow. A pre-processor comprises a digital RF data acquisition component receiving an RF signal from the transducer of back-scattered ultrasound energy and a B-mode image generation component for reconstructing images form the RF data. A post-processor executes particle image velocity (PIV) algorithms for generating velocity vectors indicative of the fluid flow. The sequences may have triangular waveforms.

    摘要翻译: 一种用于检测流体流动的系统和方法。 超声系统包括提供施加到线性阵列换能器的超声发射序列的信号发生器。 产生超声能量的换能器施加到流体流。 预处理器包括从反向散射超声能量的换能器接收RF信号的数字RF数据采集部件和用于从RF数据重建图像的B模式图像生成部件。 后处理器执行用于产生指示流体流动的速度矢量的粒子图像速度(PIV)算法。 序列可以具有三角形波形。

    DIRECT ECHO PARTICLE IMAGE VELOCIMETRY FLOW VECTOR MAPPING ON ULTRASOUND DICOM IMAGES
    2.
    发明申请
    DIRECT ECHO PARTICLE IMAGE VELOCIMETRY FLOW VECTOR MAPPING ON ULTRASOUND DICOM IMAGES 审中-公开
    直接ECHO颗粒图像速度矢量图在超声DICOM图像上映射

    公开(公告)号:US20140147013A1

    公开(公告)日:2014-05-29

    申请号:US13879006

    申请日:2011-10-11

    IPC分类号: A61B8/14 G06T7/00

    摘要: An Echo PIV analysis process, apparatus and algorithm are developed to reduce noise and analyze DICOM images representing a fluid flow of a plurality of particles. A plurality of DICOM images representing sequential image pairs of a plurality of particles is received. The plurality of DICOM sequential image pairs are grouped. The sequential image pairs are correlated to create N cross correlation maps. An average cross-correlation transformation is applied to each cross correlation map to create an image pair vector map for each image pair. A maximizing operation is applied to one or more of the N adjacent image pair vector maps to create a modified image pair vector map for the one or more of the N image pairs. The maps are combined to create a corresponding temporary vector map that are averaged to obtain a mean velocity vector field of the sequential image pairs.

    摘要翻译: 开发了回波PIV分析过程,装置和算法以减少噪声并分析表示多个粒子的流体流的DICOM图像。 接收表示多个粒子的连续图像对的多个DICOM图像。 多个DICOM顺序图像对被分组。 顺序图像对被相关以产生N个互相关图。 将平均互相关变换应用于每个互相关图以为每个图像对创建图像对矢量图。 将最大化操作应用于N个相邻图像对矢量图中的一个或多个,以创建N个图像对中的一个或多个的修改图像对矢量图。 将地图组合以产生平均以获得顺序图像对的平均速度矢量场的相应临时矢量图。