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    • 7. 发明公开
    • LIST MODE DYNAMIC IMAGE RECONSTRUCTION
    • DYNAMISCHE BILDREKONSTRUKTION IM LISTENMODUS
    • EP2707853A1
    • 2014-03-19
    • EP12724168.5
    • 2012-05-08
    • Koninklijke Philips N.V.
    • PREVRHAL, SvenBREDNO, JoergPERKINS, AmyOLIVIER, Patrick
    • G06T11/00
    • G06T11/005G06T7/20G06T11/006G06T2211/412
    • A nuclear imaging apparatus (8) acquires nuclear imaging data comprising events wherein each event records at least spatial localization information and a timestamp for a nuclear decay event. An event-preserving image reconstruction module (22) reconstructs the nuclear imaging data using an event-preserving reconstruction algorithm to generate an image represented as an event-preserving reconstructed image dataset (ID) comprising for each event the timestamp and at least one spatial voxel assignment. One or more structures are identified in the image and independent motion compensation is performed for each structure. In one approach, an events group is identified corresponding to the structure comprising events assigned to the structure by the event-preserving reconstructed image dataset; a time binning of the events of each events group is optimized based on a motion profile for the structure; time bin images are generated; and the structure is spatially registered in the time bin images.
    • 核成像装置(8)获取包括事件的核成像数据,其中每个事件至少记录空间定位信息和核衰变​​事件的时间戳。 事件保存图像重建模块(22)使用事件保留重建算法重构核成像数据,以生成表示为事件保留重构图像数据集(ID)的图像,其包括针对每个事件的时间戳和至少一个空间体素 分配。 在图像中识别一个或多个结构,并且针对每个结构执行独立的运动补偿。 在一种方法中,识别与由事件保留的重建图像数据集分配给该结构的事件的结构对应的事件组; 基于结构的运动曲线优化每个事件组的事件的时间合并; 生成时间段图像; 并且结构被空间地记录在时间段图像中。
    • 10. 发明授权
    • LIST MODE DYNAMIC IMAGE RECONSTRUCTION
    • 列表模式动态图像重建
    • EP2707853B1
    • 2017-09-06
    • EP12724168.5
    • 2012-05-08
    • Koninklijke Philips N.V.
    • PREVRHAL, SvenBREDNO, JoergPERKINS, AmyOLIVIER, Patrick
    • G06T11/00
    • G06T11/005G06T7/20G06T11/006G06T2211/412
    • A nuclear imaging apparatus (8) acquires nuclear imaging data comprising events wherein each event records at least spatial localization information and a timestamp for a nuclear decay event. An event-preserving image reconstruction module (22) reconstructs the nuclear imaging data using an event-preserving reconstruction algorithm to generate an image represented as an event-preserving reconstructed image dataset (ID) comprising for each event the timestamp and at least one spatial voxel assignment. One or more structures are identified in the image and independent motion compensation is performed for each structure. In one approach, an events group is identified corresponding to the structure comprising events assigned to the structure by the event-preserving reconstructed image dataset; a time binning of the events of each events group is optimized based on a motion profile for the structure; time bin images are generated; and the structure is spatially registered in the time bin images.
    • 核成像设备(8)获取包括事件的核成像数据,其中每个事件至少记录核衰变事件的空间定位信息和时间戳。 事件保持图像重建模块(22)使用事件保持重建算法来重建核成像数据以生成被表示为事件保存重建图像数据集(ID)的图像,该图像包括用于每个事件的时间戳和至少一个空间体素 分配。 在图像中识别一个或多个结构,并为每个结构执行独立的运动补偿。 在一种方法中,事件组被识别为对应于包括事件保存重构图像数据集分配给结构的事件的结构; 基于结构的运动简档来优化每个事件组的事件的时间分组; 生成时间块图像; 并且结构在时间仓图像中被空间注册。