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公开(公告)号：US07020240B2
公开(公告)日：2006-03-28
申请号：US10750394
申请日：2003-12-31
IPC分类号： G01N23/06
CPC分类号： G01N23/06 , G06T7/0012 , G06T2207/30068
摘要： Embodiments of methods, apparatuses, devices, and/or systems for determining matter properties are described.
摘要翻译： 描述了用于确定物质属性的方法，装置，装置和/或系统的实施例。
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公开(公告)号：US07518114B2
公开(公告)日：2009-04-14
申请号：US10985752
申请日：2004-11-10
申请人： Alexander Ganin , Floribertus Philippus Martinus Heukensfeldt Jansen , Ricardo Scott Avila , Dinko Eduardo Gonzalez Trotter , Ravindra Mohan Manjeshwar , James Vradenburg Miller , Thomas Baby Sebastian
发明人： Alexander Ganin , Floribertus Philippus Martinus Heukensfeldt Jansen , Ricardo Scott Avila , Dinko Eduardo Gonzalez Trotter , Ravindra Mohan Manjeshwar , James Vradenburg Miller , Thomas Baby Sebastian
CPC分类号： G01T1/2985 , A61B6/037 , G01T1/1611 , G01T1/1615
摘要： Methods and systems for imaging a patient are provided. The method includes determining a location of a volume of interest within the patient and acquiring a plurality of frames of emission data, at least one frame including the volume of interest. The method further includes determining a time-of-flight (TOF) information of at least a portion of the annihilations detected along a line of response between corresponding coincidence detectors and generating an image of the patient from the emission data using the determined TOF information.
摘要翻译： 提供了用于成像患者的方法和系统。 该方法包括确定患者体内感兴趣体积的位置并获取多个发射数据帧，至少一帧包括感兴趣的体积。 该方法还包括确定在相应的重合检测器之间沿着响应线检测到的湮灭的至少一部分的飞行时间（TOF）信息，并使用确定的TOF信息从发射数据生成患者的图像。
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3.发明授权Method to account for event losses due to positron range in positron emission tomography and assay of positron-emitting isotopes 失效考虑到正电子发射断层扫描中的正电子范围和正电子发射同位素测定的事件损失的方法公开(公告)号：US06987270B2
公开(公告)日：2006-01-17
申请号：US10430430
申请日：2003-05-07
IPC分类号： G01T1/64
CPC分类号： G01T1/2985
摘要： A method of quantitative positron emission analysis includes accounting for the loss of positron-electron annihilation events and quantitative inaccuracies in positron emission assays.
摘要翻译： 定量正电子发射分析的方法包括计算正电子 - 电子湮灭事件的损失和正电子发射测定中的定量不准确性。
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公开(公告)号：US06748047B2
公开(公告)日：2004-06-08
申请号：US10063806
申请日：2002-05-15
IPC分类号： G01N23083
CPC分类号： G06T11/005 , G01N23/046 , G01N2223/419
摘要： A method of estimating an asymmetrical scatter signal distribution wherein asymmetry is introduced by angular incidence of radiation, which has been emitted from a source and transmitted through an object to be imaged, on a detector, is disclosed. This method includes, in an embodiment, modifying scatter that would be derived wherein the radiation is directly incident on the detector with zero degrees of inclination, using an asymmetry factor which indicates the shape and magnitude of the scatter signal distribution and which varies with an angle at which the radiation is incident on the detector, a mean attenuation coefficient of the object, and a distance the radiation has traveled through the object. The estimated scatter provides for correction of scatter in a image.
摘要翻译： 公开了一种估计不对称散射信号分布的方法，其中不对称性是通过已经从源发射并通过待成像对象传输的辐射的角入射引入到检测器上的。 在一个实施例中，该方法包括修改将导出的散射，其中使用表示散射信号分布的形状和大小的不对称因子，其以辐射信号分布的形状和幅度直接入射到具有零倾角的检测器上，并且其以角度 辐射入射到检测器上的物体的平均衰减系数以及辐射已穿过物体的距离。 估计的散射提供了对图像中的散射的校正。
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