SYSTEMS AND METHODS FOR MOTION MITIGATION DETERMINATIONS
    1.
    发明申请
    SYSTEMS AND METHODS FOR MOTION MITIGATION DETERMINATIONS 有权
    用于运动减缓测定的系统和方法

    公开(公告)号:US20160163042A1

    公开(公告)日:2016-06-09

    申请号:US14563015

    申请日:2014-12-08

    Abstract: A method is provided that includes acquiring, with a detector comprising a plurality of rings defining corresponding slices, emission event data of an object of interest. The method also includes determining, with one or more processing units, an amount of motion for each of a plurality of segments, wherein each segment corresponds to less than an axial field of view (AFOV) of the detector. Further, the method includes performing, with the one or more processing units, motion mitigation for segments for which the amount of motion satisfies a threshold to provide motion mitigated data, and not performing motion mitigation for segments for which the amount of motion does not satisfy the threshold to provide non-mitigated data. Also, the method includes reconstructing an image using the motion mitigated data and the non-mitigated data. The method also includes displaying the image on a display.

    Abstract translation: 提供了一种方法,其包括使用包括定义相应切片的多个环的检测器获取感兴趣对象的发射事件数据。 该方法还包括利用一个或多个处理单元确定多个段中的每个段的运动量,其中每个段对应于小于检测器的轴向视场(AFOV)。 此外,该方法包括使用一个或多个处理单元对运动量满足阈值的段来执行对运动减轻数据的运动缓解,并且不对运动量不满足的段执行运动减轻 提供非缓解数据的阈值。 此外,该方法包括使用运动减轻数据和非缓解数据重建图像。 该方法还包括在显示器上显示图像。

    Method and apparatus for data selection for positron emission tomogrpahy (PET) image reconstruction
    2.
    发明授权
    Method and apparatus for data selection for positron emission tomogrpahy (PET) image reconstruction 有权
    用于正电子发射断层扫描(PET)图像重建的数据选择的方法和装置

    公开(公告)号:US09078622B2

    公开(公告)日:2015-07-14

    申请号:US13800187

    申请日:2013-03-13

    CPC classification number: A61B6/5288 A61B6/037 A61B6/466 A61B6/5264

    Abstract: A method for selecting data to reconstruct a three-dimensional (3D) image of a subject of interest includes acquiring a 3D emission dataset of the subject of interest, acquiring a respiratory signal of the subject of interest, the respiratory signal including a plurality of respiratory cycles, and calculating a respiratory profile using the respiratory signal. The method further includes, for each respiratory cycle, generating a gating window, calculating a minimum total squared difference (TSD) between a plurality of phases in the respiratory profile and the same plurality of phases in the respiratory cycle, and positioning the gating window based on the TSD values calculated, and reconstructing a 3D image using only the emission data within the plurality of gated windows. A system and non-transitory computer readable medium are also described herein.

    Abstract translation: 用于选择重建感兴趣对象的三维(3D)图像的数据的方法包括获取感兴趣对象的3D发射数据集,获取感兴趣对象的呼吸信号,所述呼吸信号包括多个呼吸 循环,并使用呼吸信号计算呼吸分布。 该方法还包括:对于每个呼吸周期,产生门控窗口,计算呼吸轮廓中的多个相位和呼吸周期中相同多个相位之间的最小总平方差(TSD),并且基于门控窗口定位 计算出的TSD值,并且仅使用多个门控窗口内的发射数据来重建3D图像。 本文还描述了系统和非暂时性计算机可读介质。

    METHOD AND APPARATUS FOR DATA SELECTION FOR POSITRON EMISSION TOMOGRPAHY (PET) IMAGE RECONSTRUCTION
    3.
    发明申请
    METHOD AND APPARATUS FOR DATA SELECTION FOR POSITRON EMISSION TOMOGRPAHY (PET) IMAGE RECONSTRUCTION 有权
    用于POSITRON排放图像(PET)图像重建的数据选择的方法和装置

    公开(公告)号:US20140276029A1

    公开(公告)日:2014-09-18

    申请号:US13800187

    申请日:2013-03-13

    CPC classification number: A61B6/5288 A61B6/037 A61B6/466 A61B6/5264

    Abstract: A method for selecting data to reconstruct a three-dimensional (3D) image of a subject of interest includes acquiring a 3D emission dataset of the subject of interest, acquiring a respiratory signal of the subject of interest, the respiratory signal including a plurality of respiratory cycles, and calculating a respiratory profile using the respiratory signal. The method further includes, for each respiratory cycle, generating a gating window, calculating a minimum total squared difference (TSD) between a plurality of phases in the respiratory profile and the same plurality of phases in the respiratory cycle, and positioning the gating window based on the TSD values calculated, and reconstructing a 3D image using only the emission data within the plurality of gated windows. A system and non-transitory computer readable medium are also described herein.

    Abstract translation: 用于选择重建感兴趣对象的三维(3D)图像的数据的方法包括获取感兴趣对象的3D发射数据集,获取感兴趣对象的呼吸信号,所述呼吸信号包括多个呼吸 循环,并使用呼吸信号计算呼吸分布。 该方法还包括:对于每个呼吸周期,产生门控窗口,计算呼吸轮廓中的多个相位和呼吸周期中相同多个相位之间的最小总平方差(TSD),并且基于门控窗口定位 计算出的TSD值,并且仅使用多个门控窗口内的发射数据来重建3D图像。 本文还描述了系统和非暂时性计算机可读介质。

    Systems and methods for motion mitigation determinations
    5.
    发明授权
    Systems and methods for motion mitigation determinations 有权
    用于运动缓解确定的系统和方法

    公开(公告)号:US09466132B2

    公开(公告)日:2016-10-11

    申请号:US14563015

    申请日:2014-12-08

    Abstract: Emission event data of an object of interest is acquired with a detector comprising a plurality of rings defining corresponding slices. Also, an amount of motion for each of a plurality of segments is determined with one or more processing units, wherein each segment corresponds to less than an axial field of view (AFOV) of the detector. Further, motion mitigation is performed for segments for which the amount of motion satisfies a threshold to provide motion mitigated data, and not performed for segments for which the amount of motion does not satisfy the threshold to provide non-mitigated data. An image is reconstructed using the motion mitigated data and the non-mitigated data, and the image is displayed on a display.

    Abstract translation: 利用包括定义相应切片的多个环的检测器来获取感兴趣对象的发射事件数据。 而且,利用一个或多个处理单元来确定多个段中的每一个的运动量,其中每个段对应于小于检测器的轴向视场(AFOV)。 此外,对于运动量满足阈值的段来执行运动缓解,以提供运动缓解数据,并且不对运动量不满足阈值的段执行以提供非缓解数据。 使用运动减轻数据和非缓解数据重建图像,并且将图像显示在显示器上。

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