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1.发明公开Protocol driven image reconstruction, display, and processing in a multislice imaging system 审中-公开在多层成像设备协议驱动重建，显示和图像的处理
公开(公告)号：EP0982001A1
公开(公告)日：2000-03-01
申请号：EP99306638.0
申请日：1999-08-20
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , A61B6/504 , Y10S378/901
摘要： A scalable multislice system (10) configured to generate multiple streams of image data with different image quality characteristics prospectively and simultaneously is described. Such capability enables improving existing clinical diagnosis and also enables use of clinical application protocol driven method for image reconstruction and display as well as image analysis. More specifically, with the scalable multislice imaging system (10), multiple rows (>2) of x-ray scan data along the patient's long axis are simultaneously acquired. Multiple protocols (100) are "pre-built" based on specific applications to determine image slice thickness, image reconstruction filter, display method, e. g., field of view, filming requirement and image archiving requirement, prospectively. Multiple image sets with different slice thickness, different reconstruction methods, different display model - axial, 3D or reformat which are pre-determined by the protocol (100) used can then be displayed.
摘要翻译： 配置为生成与不同的图像质量特性的imageData的多个流和前瞻性同时一种可伸缩多层系统（10）进行说明。 搜索能力允许改进现有临床诊断，因此允许用于图像重建使用临床应用协议驱动方法的，并显示以及图像分析。 更具体地，可伸缩多层成像系统（10），多行（> 2）的x射线沿患者长轴扫描数据被同时获取。 多个协议（100）是“预建”基于特定的应用，以确定矿图象切片厚度，图像重构滤波器，显示方法，例如 的视场，拍摄需求和图像存档要求，前瞻性克，。 多个图像集具有不同的切片厚度，不同的重建方法，不同的显示模型 - 轴向，3D或重新格式化哪些是预先确定由用于随后可以显示在协议（100）。
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2.发明公开Methods and apparatus for troubleshooting scaleable multislice imaging system 审中-公开对于故障排除scalierbareren多层成像系统的方法和装置
公开(公告)号：EP0982659A3
公开(公告)日：2005-09-21
申请号：EP99306580.4
申请日：1999-08-20
摘要： The present invention, in one form, is an imaging system (10) which, in one embodiment, alters the configuration of a detector array (18) and a data acquisition system (32) to determine degraded component performance and generate fault isolation information. More specifically, by altering the configuration to include different combinations of detector array cells, interconnections, and one or more data acquisition channels, fault isolation information is generated.
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3.发明公开
公开(公告)号：EP1016375A1
公开(公告)日：2000-07-05
申请号：EP99310451.2
申请日：1999-12-22
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B6/4405 , A61B6/4441 , A61B6/4452 , A61B6/588
摘要： The present invention, in one form, is a multimode imaging system (10) which, in one embodiment, includes a substantially C-shaped arm (16) movably coupled to a movable base (14) to reduce difficulty of scanning an object. A source assembly (26) having a x-ray source (28) and a detector assembly (30) having a detector (32) are movably coupled to the arm (16). The source assembly (26) and the detector assembly (30) are independently movable relative to each other and to the arm (16). In one embodiment, an operator selects one or more modes of operation of the imaging system so that various types of image data are displayed.
摘要翻译： 在一种形式中，本发明是一种多模式成像系统（10），其在一个实施例中包括可移动地联接到可移动基座（14）上的基本上C形的臂（16），以减少扫描对象的难度。 具有x射线源（28）和具有检测器（32）的检测器组件（30）的源组件（26）可移动地联接到臂（16）。 源组件（26）和检测器组件（30）可以相对于彼此和臂（16）独立地移动。 在一个实施例中，操作者选择成像系统的一种或多种操作模式，使得显示各种类型的图像数据。
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4.发明公开Methods and apparatus for monitoring detector image quality 审中-公开Verfahren und Apparat zurÜberwachungder Detektor-Bildqualität
公开(公告)号：EP0982683A2
公开(公告)日：2000-03-01
申请号：EP99306635.6
申请日：1999-08-20
IPC分类号： G06T11/00
CPC分类号： G01N23/046 , G01N2223/419
摘要： Methods and apparatus for detecting cell to cell variation to ensure that the maximum allowable channel to channel variation is not exceeded are described. In one embodiment, an algorithm is periodically executed to measure the relative gains in the channels. The gains are measured, for example, by recording the signal from an air scan and normalizing to a common reference. Part of the normalization process includes accounting for the non uniformity of the x-ray beam, for example, the heel effect. It is assumed that the x-ray flux profile in z is slowly changing in the x-direction and is obtained by low pass filtering in x. The normalized values are then compared to a predetermined specification. If any particular cell is not within the specification parameters, then the module (58) in which such cell resides may be replaced. In addition to measuring gain variation and comparing it to a specification, a trending analysis also may be performed. The trending algorithm predicts the time at which the detector will fail the specification so that replacement of the detector may take place before failure occurs.
摘要翻译： 描述用于检测小区到小区变化以确保不超过最大允许信道到信道变化的方法和装置。 在一个实施例中，周期性地执行算法以测量信道中的相对增益。 增益是通过例如记录来自空气扫描的信号并归一化到公共参考来测量的。 归一化过程的一部分包括考虑x射线束的非均匀性，例如脚跟效应。 假设z中的x射线通量分布在x方向上缓慢变化，并且通过x中的低通滤波获得。 然后将归一化值与预定规格进行比较。 如果任何特定小区不在规范参数内，则可以替换其中该小区所在的模块（58）。 除了测量增益变化并将其与规格进行比较之外，还可以进行趋势分析。 趋势算法预测检测器将失效规格的时间，以便在发生故障之前更换检测器。
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公开(公告)号：EP1016375B1
公开(公告)日：2008-06-04
申请号：EP99310451.2
申请日：1999-12-22
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B6/4405 , A61B6/4441 , A61B6/4452 , A61B6/588
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6.发明公开Methods and apparatus for optimizing CT image quality with optimized data acquisition 有权用于通过Komputertomographen具有最佳的数据采集优化的图像质量的方法和装置
公开(公告)号：EP1103221A1
公开(公告)日：2001-05-30
申请号：EP00310603.6
申请日：2000-11-29
发明人： He, Hui David , Toth, Thomas Louis
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/488
摘要： A method is described for optimizing signal-to-noise performance of an imaging system, including the steps of scout-scanning (116) an object to obtain scout scan data; determining (118) a plurality of normalized x-ray input signal factors using the scout scan data; using the normalized x-ray input signal factors to determine (120) at least one system input signal; selecting (122) at least one gain for the object scan using the system input signal; and applying the selected gain corresponding to the system input signal in the object scan.
摘要翻译： 描述了一种方法用于优化成象系统的信号到噪声性能，包括搜索扫描（116）的步骤，以对象获得搜索扫描数据; 确定性开采（118）利用搜索扫描数据规范化的X射线输入信号因子的多元性; 利用归一化的X射线输入信号因子确定的矿（120）至少一个系统输入信号; 选择（122）至少一个增益为使用该系统的输入信号的对象扫描; 以及将所述选定的增益对应于对象扫描系统的输入信号。
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公开(公告)号：EP0981997B1
公开(公告)日：2005-12-21
申请号：EP99306606.7
申请日：1999-08-20
发明人： He, Hui David , Senzig, Robert , Besson, Guy Marie , Hu, Hui , Strong, Gary Richard , Hoffman, David Michael , Seidenschnur, George E. , Murray, Jonathan Alan , Hampel, Willi Walter , Pfoh, Armin Horst , Toth, Thomas Louis
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085
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8.发明公开Volumetric computed tomography system for cardiac imaging 审中-公开System zur dreidimensionalen ComputertomographiefürHerzbildgebung
公开(公告)号：EP1050272A1
公开(公告)日：2000-11-08
申请号：EP00303783.5
申请日：2000-05-05
发明人： Hu, Hui , Fox, Stanley , Hsieh, Jiang , Acharya, Kishore , He, Hui David , Sun, Yi
IPC分类号： A61B6/00
CPC分类号： A61B6/541 , A61B6/027 , G01N23/046 , G01N2223/419 , G01N2223/612
摘要： The present invention, in one form, is an imaging system for generating images of an entire object. In one embodiment, a physiological cycle unit is used to determine the cycle of the moving object. By altering the rotational speed of an x-ray source as a function of the object cycle, segments of projection data are collected for each selected phase of the object during each rotation. After completing a plurality of rotations, the segments of projection data are combined and a cross-sectional image of the selected phase of the object is generated. As a result, minimizing motion artifacts.
摘要翻译： 本发明以一种形式是用于产生整个对象的图像的成像系统。 在一个实施例中，使用生理循环单元来确定移动物体的周期。 通过改变作为对象周期的函数的x射线源的旋转速度，在每个旋转期间针对对象的每个选定阶段收集投影数据的段。 在完成多次旋转之后，组合投影数据的段，并且生成对象的选定阶段的横截面图像。 结果，最小化运动伪像。
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9.发明公开Methods and apparatus for troubleshooting scaleable multislice imaging system 审中-公开对于故障排除scalierbareren多层成像系统的方法和装置
公开(公告)号：EP0982659A2
公开(公告)日：2000-03-01
申请号：EP99306580.4
申请日：1999-08-20
IPC分类号： G06F11/22
摘要： The present invention, in one form, is an imaging system (10) which, in one embodiment, alters the configuration of a detector array (18) and a data acquisition system (32) to determine degraded component performance and generate fault isolation information. More specifically, by altering the configuration to include different combinations of detector array cells, interconnections, and one or more data acquisition channels, fault isolation information is generated.
摘要翻译： 本发明中，在一种形式中，是成像系统（10），其在一个实施方式中，年龄的检测器阵列（18）和一个数据采集系统（32），以确定矿的结构劣化成分的性能和产生故障隔离信息。 更具体地，通过改变配置，以包括检测器阵列单元，互连和一个或多个数据采集通道，则产生故障隔离信息的不同组合。
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10.发明公开Methods and apparatus for automatic image noise reduction 有权Verfahren undGerätzur automatischen Bildrauschreduzierung
公开(公告)号：EP0981998A1
公开(公告)日：2000-03-01
申请号：EP99306607.5
申请日：1999-08-20
发明人： He, Hui David , Ackelsberg, Sholom M. , Strong, Gary Richard , McDaniel, Holly Ann , Guerra, Carlos F. , Hu, Hui , Senzig, Robert
摘要： The present invention, in one form, is a system (10) which, in one embodiment, adjusts the x-ray source current to reduce image noise to better accommodate different scanning parameters. Specifically, in one embodiment, the x-ray source current is adjusted as a function of image slice thickness, scan rotation time, collimation mode, table speed, scan mode, and filtration mode. Particularly, a function is stored in a CT system computer (36) to determine an x-ray source current adjustment factor so that the appropriate x-ray source current is supplied to the x-ray source (14) for the determined parameters. After adjusting the x-ray source current, an object is scanned.
摘要翻译： 本发明以一种形式是在一个实施例中调整x射线源电流以减少图像噪声以更好地适应不同扫描参数的系统（10）。 具体地，在一个实施例中，根据图像切片厚度，扫描旋转时间，准直模式，表速度，扫描模式和过滤模式来调整x射线源电流。 特别地，功能被存储在CT系统计算机（36）中以确定x射线源电流调整因子，使得适当的x射线源电流被提供给x射线源（14）用于所确定的参数。 调整x射线源电流后，扫描物体。
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