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公开(公告)号：US06977984B2
公开(公告)日：2005-12-20
申请号：US10680688
申请日：2003-10-07
CPC分类号： A61B6/032 , A61B5/055 , A61B6/027 , G01N23/046 , G01N2223/419 , G01N2223/612 , Y10S378/901
摘要： The present invention provides a method for producing images of an object. The method includes dynamically helically scanning an object on a moving table utilizing a scanning imaging system. During the scan, projection views of the object are acquired and stored together with corresponding table locations. A plane for reconstruction of an image of the object is selected. The stored table locations are used to determine geometric variables applicable to the stored projection views; and the stored projection views are filtered and backprojected utilizing the geometrical variables to reconstruct an image of the object at the reconstruction plane.
摘要翻译： 本发明提供了一种用于产生对象的图像的方法。 该方法包括利用扫描成像系统动态地螺旋扫描移动台上的物体。 在扫描期间，获取对象的投影视图并与对应的表位置一起存储。 选择用于重建对象的图像的平面。 存储的表位置用于确定适用于存储的投影视图的几何变量; 并且利用几何变量对所存储的投影视图进行滤波和反投影，以重构在重构平面处的对象的图像。
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2.发明授权Method and system for providing defective cell correction in a medical imaging device 失效用于在医疗成像装置中提供缺陷细胞校正的方法和系统公开(公告)号：US07602951B2
公开(公告)日：2009-10-13
申请号：US11079355
申请日：2005-03-14
申请人： Jiang Hsieh , Paavana Sainath , James Watkins Madine , Charles Hugh Shaughnessy , Eugene Clifford Williams , Abdelaziz Ikhlef
发明人： Jiang Hsieh , Paavana Sainath , James Watkins Madine , Charles Hugh Shaughnessy , Eugene Clifford Williams , Abdelaziz Ikhlef
IPC分类号： G06K9/00
CPC分类号： G06T5/005 , A61B6/027 , G06T11/005 , G06T2207/10081 , G06T2207/30004
摘要： Methods and systems for scanning a patient by using a medical imaging device are provided. The methods include determining a defective cell in a row n of a detector of the medical imaging device, determining a mode of operation of the medical imaging device, estimating the output of the defective cell using the determined mode of operation and at least one of a conjugate sample of the defective cell, an adjusted conjugate sample of the defective cell, and an estimate of the output of the defective cell using an output of a corresponding cell in an adjacent row and reconstructing an image of the patient using the estimated value of the defective cell.
摘要翻译： 提供了通过使用医学成像装置扫描患者的方法和系统。 所述方法包括确定医疗成像设备的检测器的行n中的有缺陷的单元，确定医疗成像设备的操作模式，使用确定的操作模式来估计缺陷单元的输出，以及至少一个 缺陷单元的共轭样本，缺陷单元的调整后的共轭样本，以及使用相邻行中的相应单元的输出来估计缺陷单元的输出，并且使用所估计的值估计所述患者的图像 有缺陷的细胞。
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3.发明授权公开(公告)号：US07142636B2
公开(公告)日：2006-11-28
申请号：US10668444
申请日：2003-09-23
IPC分类号： G01B15/02
CPC分类号： H04N5/3675 , A61B6/032 , A61B6/585 , A61B6/586 , H04N5/32
摘要： A method and system for an improved data acquisition system with an image detector array and an image processing system which finds a malfunctioning cell, interpolates a signal for the malfunctioning cell using neighboring channels of the cell, and corrects the interpolation with an error rate found in performing interpolations on neighboring rows with cells which are not malfunctioning. The image processing system may include a DAS and a reconstruction system. The step of finding a malfunctioning cell may be accomplished through a variety of methods, such as measuring discrepancies between a cell's and its neighboring cell's average readings over time and exposing the cells to x-rays which should produce similar readings in all the cells and comparing the cells' signals, looking for discrepancies. The step of interpolating and the step of correcting may take into consideration cells within the same projection view as the malfunctioning cell.
摘要翻译： 一种用于具有图像检测器阵列和图像处理系统的改进的数据采集系统的方法和系统，其发现故障小区，使用所述小区的相邻信道内插用于所述故障小区的信号，并以所述小区的相邻信道校正所述插值 在没有故障的单元对相邻行执行内插。 图像处理系统可以包括DAS和重建系统。 找到故障细胞的步骤可以通过各种方法来实现，例如测量细胞及其相邻细胞的平均读数随时间的差异，并将细胞暴露于在所有细胞中产生相似读数的x射线，并比较 细胞信号，寻找差异。 内插步骤和校正步骤可以考虑到与故障单元相同的投影视图中的单元。
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