FIELD-OF-VIEW-DEPENDENT COINCIDENCE WINDOW FOR POSITRON EMISSION TOMOGRAPHY
    2.
    发明申请
    FIELD-OF-VIEW-DEPENDENT COINCIDENCE WINDOW FOR POSITRON EMISSION TOMOGRAPHY 有权
    视觉依赖型排列窗口,用于排除血管造影

    公开(公告)号:US20140095106A1

    公开(公告)日:2014-04-03

    申请号:US13630787

    申请日:2012-09-28

    IPC分类号: G06F19/00 G01T1/164

    摘要: A method and apparatus for determining a coincidence window for imaging a region of interest of an object using a Positron Emission Tomography (PET) scanner. The method includes determining a diameter of a transverse field of view (FOV) for imaging the region of interest of the object; and calculating the coincidence window based on the determined diameter, a ring diameter of the PET scanner, an axial length of the PET scanner, and a time-of-flight resolution of the PET scanner.

    摘要翻译: 一种用于使用正电子发射断层摄影(PET)扫描仪确定用于对物体感兴趣区域成像的符合窗口的方法和装置。 该方法包括确定用于对物体的感兴趣区域成像的横视场(FOV)的直径; 以及基于确定的直径,PET扫描仪的环直径,PET扫描器的轴向长度和PET扫描仪的飞行时间分辨率来计算重合窗口。

    System and method for measuring and compensating for patient pallet deflection
    3.
    发明授权
    System and method for measuring and compensating for patient pallet deflection 有权
    用于测量和补偿患者托盘偏转的系统和方法

    公开(公告)号:US08511894B2

    公开(公告)日:2013-08-20

    申请号:US12907796

    申请日:2010-10-19

    IPC分类号: A61B6/04

    CPC分类号: G06T11/005 A61B6/037

    摘要: A PET imaging system includes a measurement subsystem, a data acquisition subsystem, and a reconstruction subsystem. The measurement subsystem detects deflection in a patient pallet, and generates deflection information based on the detected deflection. The data acquisition subsystem receives the deflection information from the measurement subsystem and PET measurement data corresponding to a plurality of coincidence events from a PET scanner, and communicates the received deflection information and PET measurement data to the reconstruction subsystem. The reconstruction subsystem includes a processor that reconstructs a PET scan image using the deflection information and the PET measurement data communicated by the data acquisition subsystem.

    摘要翻译: PET成像系统包括测量子系统,数据采集子系统和重建子系统。 测量子系统检测患者托盘中的偏转,并且基于检测到的偏转产生偏转信息。 数据采集​​子系统从PET扫描仪接收来自测量子系统的偏转信息和对应于多个符合事件的PET测量数据,并将接收到的偏转信息和PET测量数据传送到重构子系统。 重建子系统包括使用由数据采集子系统传送的偏转信息和PET测量数据重建PET扫描图像的处理器。

    Method and system for pet image reconstruction using a surogate image
    4.
    发明授权
    Method and system for pet image reconstruction using a surogate image 有权
    使用异位图像进行宠物图像重建的方法和系统

    公开(公告)号:US08073109B2

    公开(公告)日:2011-12-06

    申请号:US12088090

    申请日:2006-09-14

    IPC分类号: G06K9/00

    摘要: A method and system for use in positron emission tomography, wherein a first processor element (234) is configured to reconstruct a plurality of positron annihilation events detected during a positron emission tomography scan using a list-based reconstruction technique to generate first volumetric data. A second reconstructor (226) is configured to reconstruct the plurality of events using a second reconstruction technique to generate second volumetric data for determining an error correction (228), the error correction applied to the first volumetric data to generate corrected volumetric data for generating a human-readable image (234). In one embodiment a multiplicative error correction is performed on the plurality of events, the first processor element (234) reconstructing the corrected plurality of events; and the second volumetric data error correction comprises an additive error correction.

    摘要翻译: 一种用于正电子发射断层摄影的方法和系统,其中第一处理器元件(234)被配置为使用基于列表的重建技术来重建在正电子发射断层摄影扫描期间检测到的多个正电子湮灭事件以产生第一体积数据。 第二重构​​器(226)被配置为使用第二重建技术来重建多个事件,以产生用于确定纠错(228)的第二体积数据,应用于第一体积数据的误差校正以产生校正的体积数据,以产生 人类可读的图像(234)。 在一个实施例中,对多个事件执行乘法误差校正,第一处理器元件(234)重建校正的多个事件; 并且第二体积数据误差校正包括加法误差校正。

    Positron emission tomography system with hybrid detection geometries and sampling
    5.
    发明授权
    Positron emission tomography system with hybrid detection geometries and sampling 有权
    具有混合检测几何和采样的正电子发射断层摄影系统

    公开(公告)号:US08558181B2

    公开(公告)日:2013-10-15

    申请号:US12915705

    申请日:2010-10-29

    IPC分类号: G01T1/164 G21K1/02

    CPC分类号: G01T1/1644 A61B6/037

    摘要: A gamma ray detection system includes a plurality of detector modules having a same length, where each detector module is configured to detect gamma rays generated from positron annihilation events. A first detector module of the plurality of detector modules is shifted by a predetermined distance in an axial direction from a second detector module of the plurality of detector modules that is adjacent to the first detector module, where the predetermined distance is less than the length of the detector modules.

    摘要翻译: 伽马射线检测系统包括具有相同长度的多个检测器模块,其中每个检测器模块被配置为检测由正电子湮灭事件产生的伽马射线。 多个检测器模块的第一检测器模块从与第一检测器模块相邻的多个检测器模块的第二检测器模块沿轴向偏移预定距离,其中预定距离小于 检测器模块。

    Optimal conversion of 3D image sets between different spaces
    6.
    发明授权
    Optimal conversion of 3D image sets between different spaces 有权
    3D图像集在不同空间之间的最优转换

    公开(公告)号:US07961927B2

    公开(公告)日:2011-06-14

    申请号:US11719418

    申请日:2005-11-04

    IPC分类号: G06K9/36

    CPC分类号: G06T3/4061 A61B6/583

    摘要: A multi-modality system (10) includes a nuclear imaging system (12) and a computed tomography (CT) scanner (14). The nuclear system (12) includes a PET scanner (28) which acquires electronic data that is reconstructed into a PET blob image by a PET reconstruction processor (50). The CT scanner (14) acquires the scanned data which is reconstructed into a 3D CT voxel image by a CT reconstruction processor (56). An interpolation processor (62) interpolates the PET blob image directly into the CT voxel space. Once the PET and CT images are in the same space, they are combined by a combining means (110). A video processor (66) processes the received composite PET-CT data for a display on a monitor (68).

    摘要翻译: 多模态系统(10)包括核成像系统(12)和计算机断层摄影(CT)扫描器(14)。 核系统(12)包括PET扫描器(28),其通过PET重建处理器(50)获取被重建为PET斑点图像的电子数据。 CT扫描器(14)通过CT重建处理器(56)获取重建成3D CT体素图像的扫描数据。 插值处理器(62)将PET斑点图像直接内插到CT体素空间中。 一旦PET和CT图像在相同的空间中,它们通过组合装置(110)组合。 视频处理器(66)处理所接收的复合PET-CT数据以用于监视器(68)上的显示。

    IMAGE RECONSTRUCTION USING DATA ORDERING
    7.
    发明申请
    IMAGE RECONSTRUCTION USING DATA ORDERING 有权
    使用数据订购的图像重构

    公开(公告)号:US20100272335A1

    公开(公告)日:2010-10-28

    申请号:US12279848

    申请日:2007-02-05

    IPC分类号: G06K9/00 G06F12/00 G06F12/08

    CPC分类号: G06K9/00362 G06T11/006

    摘要: Methods, systems and apparatuses for processing data associated with nuclear medical imaging techniques are provided. Data is ordered in LUT's and memory structures. Articles of manufacture are provided for causing computers to carry out aspects of the invention. Data elements are ordered into a plurality of ordered data groups according to a spatial index order, and fetched and processed in the spatial index order. The data elements include sensitivity matrix elements, PET annihilation event data, and system and image matrix elements, the data grouped in orders corresponding to their processing. In one aspect geometric symmetry of a PET scanner FOV is used in ordering the data and processing. In one aspect a system matrix LUT comprises total number of system matrix elements equal to a total number of image matrix elements divided by a total number of possible third index values.

    摘要翻译: 提供了用于处理与核医学成像技术相关的数据的方法,系统和装置。 数据按照LUT和内存结构进行排序。 提供制造用于使计算机执行本发明的方面。 数据元素根据空间索引顺序排列成多个有序数据组,并以空间索引顺序取出并处理。 数据元素包括灵敏度矩阵元素,PET湮灭事件数据,以及系统和图像矩阵元素,数据按照与其处理相对应的顺序分组。 在一个方面,PET扫描器FOV的几何对称性用于排序数据和处理。 在一个方面,系统矩阵LUT包括等于图像矩阵元素的总数除以可能的第三索引值的总数的系统矩阵元素的总数。

    Pet Imaging Using Anatomic List Mode Mask
    8.
    发明申请
    Pet Imaging Using Anatomic List Mode Mask 审中-公开
    宠物成像使用解剖列表模式掩码

    公开(公告)号:US20080317194A1

    公开(公告)日:2008-12-25

    申请号:US12093152

    申请日:2006-10-17

    IPC分类号: A61B6/00

    摘要: A method and apparatus are provided for reconstructing list mode data acquired during a positron emission tomography scan of an object, the data including information indicative of a plurality of detected positron annihilation events. Detected events occurring in a region of interest are identified; the identified events are reconstructed using an iterative reconstruction technique which includes a ray tracing operation to generate volumetric data indicative of the region of interest, wherein the ray tracing operation traces only image matrix elements located in the region of interest; and a human readable image indicative of the volumetric data is generated. In another aspect an image mask and a projection mask are defined correlating to the region of interest; image matrix elements located in the region of interest are determined by applying the image mask; and detected events occurring in a region of interest are identified by applying the projection mask.

    摘要翻译: 提供了一种方法和装置,用于重建在对象的正电子发射断层摄影扫描期间获取的列表模式数据,该数据包括指示多个检测到的正电子湮灭事件的信息。 确定在感兴趣区域发生的检测事件; 使用迭代重建技术来重建所识别的事件,所述迭代重建技术包括用于产生指示感兴趣区域的体积数据的光线跟踪操作,其中光线跟踪操作仅跟踪位于感兴趣区域中的图像矩阵元素; 并产生指示体积数据的人类可读取的图像。 在另一方面,图像掩模和投影掩模被定义为与感兴趣区域相关; 通过应用图像掩模来确定位于感兴趣区域中的图像矩阵元素; 并且通过应用投影掩模来识别在感兴趣区域中发生的检测到的事件。

    Method and System for Pet Image Reconstruction Using a Surogate Image
    9.
    发明申请
    Method and System for Pet Image Reconstruction Using a Surogate Image 有权
    使用Surogate图像进行宠物图像重建的方法和系统

    公开(公告)号:US20080253640A1

    公开(公告)日:2008-10-16

    申请号:US12088090

    申请日:2006-09-14

    IPC分类号: G06K9/78

    摘要: A method and system for use in positron emission tomography, wherein a first processor element (234) is configured to reconstruct a plurality of positron annihilation events detected during a positron emission tomography scan using a list-based reconstruction technique to generate first volumetric data. A second reconstructor (226) is configured to reconstruct the plurality of events using a second reconstruction technique to generate second volumetric data for determining an error correction (228), the error correction applied to the first volumetric data to generate corrected volumetric data for generating a human-readable image (234). In one embodiment a multiplicative error correction is performed on the plurality of events, the first processor element (234) reconstructing the corrected plurality of events; and the second volumetric data error correction comprises an additive error correction.

    摘要翻译: 一种用于正电子发射断层摄影的方法和系统,其中第一处理器元件(234)被配置为使用基于列表的重建技术来重建在正电子发射断层摄影扫描期间检测到的多个正电子湮灭事件以产生第一体积数据。 第二重构​​器(226)被配置为使用第二重建技术来重建多个事件,以产生用于确定纠错(228)的第二体积数据,应用于第一体积数据的误差校正以产生校正的体积数据,以产生 人类可读的图像(234)。 在一个实施例中,对多个事件执行乘法误差校正,第一处理器元件(234)重建校正的多个事件; 并且第二体积数据误差校正包括加法误差校正。

    Image reconstruction using data ordering
    10.
    发明授权
    Image reconstruction using data ordering 有权
    使用数据排序的图像重建

    公开(公告)号:US08488849B2

    公开(公告)日:2013-07-16

    申请号:US12279848

    申请日:2007-02-05

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00362 G06T11/006

    摘要: Methods, systems and apparatuses for processing data associated with nuclear medical imaging techniques are provided. Data is ordered in LUT's and memory structures. Articles of manufacture are provided for causing computers to carry out aspects of the invention. Data elements are ordered into a plurality of ordered data groups according to a spatial index order, and fetched and processed in the spatial index order. The data elements include sensitivity matrix elements, PET annihilation event data, and system and image matrix elements, the data grouped in orders corresponding to their processing. In one aspect geometric symmetry of a PET scanner FOV is used in ordering the data and processing. In one aspect a system matrix LUT comprises total number of system matrix elements equal to a total number of image matrix elements divided by a total number of possible third index values.

    摘要翻译: 提供了用于处理与核医学成像技术有关的数据的方法,系统和装置。 数据按照LUT和内存结构进行排序。 提供制造用于使计算机执行本发明的方面。 数据元素根据空间索引顺序排列成多个有序数据组,并以空间索引顺序取出并处理。 数据元素包括灵敏度矩阵元素,PET湮灭事件数据,以及系统和图像矩阵元素,数据按照与其处理相对应的顺序分组。 在一个方面,PET扫描器FOV的几何对称性用于排序数据和处理。 在一个方面,系统矩阵LUT包括等于图像矩阵元素的总数除以可能的第三索引值的总数的系统矩阵元素的总数。