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1. 发明申请

US20050089135A1 System and method of x-ray flux management control 有权
标题翻译： x射线通量管理控制系统与方法
公开(公告)号：US20050089135A1
公开(公告)日：2005-04-28
申请号：US10765582
申请日：2004-01-27
申请人： Thomas Toth , David Hoffman
发明人： Thomas Toth , David Hoffman
IPC分类号： A61B6/03 , H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/4488 , A61B6/469 , A61B6/488 , A61B6/544 , A61B6/583
摘要： A system and method of diagnostic imaging is provided that includes determining a position of a subject in a scanning bay and tailoring x-ray attenuation such that the specific position of the subject is taken into consideration. The present invention automatically selects a proper attenuation filter configuration, corrects patient centering, and corrects noise prediction errors, thereby increasing dose efficiency and tube output.
摘要翻译：提供了诊断成像的系统和方法，其包括确定扫描间隔中的对象的位置并调整x射线衰减，使得考虑对象的特定位置。本发明自动选择适当的衰减滤波器配置，校正患者居中，并且校正噪声预测误差，从而提高剂量效率和管输出。

2. 发明申请

US20050089138A1 System and method of determining a center of mass of an imaging subject for x-ray flux management control 失效
标题翻译：用于确定用于x射线通量管理控制的成像对象的质心的系统和方法
公开(公告)号：US20050089138A1
公开(公告)日：2005-04-28
申请号：US10765583
申请日：2004-01-27
申请人： Thomas Toth , David Hoffman
发明人： Thomas Toth , David Hoffman
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/4488 , A61B6/469 , A61B6/488 , A61B6/544 , A61B6/583
摘要： A system and method of diagnostic imaging is provided that includes positioning a subject in a scanning bay, comparing a center of mass of the subject to a reference point, and repositioning the subject in the scanning bay to reduce a difference in position between the center of mass of the subject and the reference point. The present invention automatically selects a proper attenuation filter configuration, corrects patient centering, and corrects noise prediction errors, thereby increasing dose efficiency and tube output.
摘要翻译：提供了诊断成像的系统和方法，其包括将被摄体定位在扫描间隔中，将被摄体的质心与参考点进行比较，以及重新定位扫描间隔中的被摄体以减少位于第受试者的质量和参考点。本发明自动选择适当的衰减滤波器配置，校正患者居中，并且校正噪声预测误差，从而提高剂量效率和管输出。

3. 发明申请

US20050089136A1 System and method of determining a user-defined region-of-interest of an imaging subject for x-ray flux management control 有权
标题翻译：确定用于X射线通量管理控制的成像对象的用户定义的感兴趣区域的系统和方法
公开(公告)号：US20050089136A1
公开(公告)日：2005-04-28
申请号：US10765617
申请日：2004-01-27
申请人： Thomas Toth , David Hoffman
发明人： Thomas Toth , David Hoffman
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/4488 , A61B6/469 , A61B6/488 , A61B6/544 , A61B6/583
摘要： A system and method of diagnostic imaging is provided that includes positioning a subject in an imaging device, performing at least one scout scan, and marking a user-defined region-of-interest. An attenuation characteristic of an attenuation filter is then automatically adjusted based on the user-defined region-of-interest. The present invention automatically selects a proper attenuation filter configuration, corrects patient centering, and corrects noise prediction errors, thereby increasing dose efficiency and tube output.
摘要翻译：提供了一种诊断成像的系统和方法，其包括将成像装置中的被摄体定位，执行至少一个侦察扫描，以及标记用户定义的感兴趣区域。衰减滤波器的衰减特性然后根据用户定义的感兴趣区域自动调整。本发明自动选择适当的衰减滤波器配置，校正患者居中，并且校正噪声预测误差，从而提高剂量效率和管输出。

4. 发明申请

US20060018435A1 COMPUTED TOMOGRAPHY DOSE INDEXING PHANTOM SELECTION FOR DOSE REPORTING 有权
标题翻译：计算机图形剂量指示剂选择用于剂量报告
公开(公告)号：US20060018435A1
公开(公告)日：2006-01-26
申请号：US10710563
申请日：2004-07-21
申请人： Thomas Toth , David Hoffman
发明人： Thomas Toth , David Hoffman
IPC分类号： H05G1/28
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/488 , A61B6/583 , G06F19/00
摘要： A computed tomography assembly is providing including an x-ray gantry assembly, an x-ray source projecting a beam of x-rays, a detector assembly positioned opposite the x-ray source and receiving the beam of x-rays, and a control mechanism in communication with the x-ray source and the detector assembly. The control mechanism includes logic adapted to: execute at least one scout scan of the object to produce a first scout scan image; generate an elliptical patient model based on the first scout scan image; match the elliptical patient model to a phantom diameter approximation; generate a dose report based on the phantom diameter approximation; and display said dose report on a display in communication with the control mechanism.
摘要翻译：提供了一种计算机断层摄影组件，其包括x射线门架组件，投射X射线束的x射线源，与x射线源相对设置并接收x射线束的检测器组件，以及控制机构与x射线源和检测器组件通信。所述控制机构包括适于：执行对象的至少一次侦察扫描以产生第一侦察扫描图像的逻辑; 基于第一侦察扫描图像生成椭圆形病人模型; 将椭圆形患者模型与幻影直径近似相匹配; 基于幻影直径近似生成剂量报告; 并在与控制机构通信的显示器上显示所述剂量报告。

5. 发明申请

US20050089137A1 System and method of collecting imaging subject positioning information for x-ray flux control 有权
标题翻译：用于x射线通量控制的成像对象定位信息的采集系统和方法
公开(公告)号：US20050089137A1
公开(公告)日：2005-04-28
申请号：US10765618
申请日：2004-01-27
申请人： Thomas Toth , David Hoffman
发明人： Thomas Toth , David Hoffman
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/4488 , A61B6/469 , A61B6/488 , A61B6/544 , A61B6/583
摘要： A system and method of diagnostic imaging is provided that includes positioning a subject in an imaging device, collecting positioning information of the subject from at least one sensor disposed in proximity of the imaging device, and determining a relative position of the subject within the imaging device from at least the position information. The present invention automatically selects a proper attenuation filter configuration, corrects patient centering, and corrects noise prediction errors, thereby increasing dose efficiency and tube output.
摘要翻译：提供了诊断成像的系统和方法，其包括将成像装置定位在成像装置中，从设置在成像装置附近的至少一个传感器收集对象的定位信息，以及确定成像装置内的对象的相对位置至少从位置信息。本发明自动选择适当的衰减滤波器配置，校正患者居中，并且校正噪声预测误差，从而提高剂量效率和管输出。

6. 发明申请

US20070076842A1 Adaptable energy discriminating computed tomography system 审中-公开
标题翻译：适应能量识别计算机断层扫描系统
公开(公告)号：US20070076842A1
公开(公告)日：2007-04-05
申请号：US11239842
申请日：2005-09-30
申请人： John Tkaczyk , Deborah Walter , Yanfeng Du , David Hoffman , Thomas Toth
发明人： John Tkaczyk , Deborah Walter , Yanfeng Du , David Hoffman , Thomas Toth
IPC分类号： H05G1/60 , H05G1/44 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/4042 , A61B6/405 , A61B6/4085 , A61B6/4241 , A61B6/463 , A61B6/466 , A61B6/469 , A61B6/482 , A61B6/488 , A61B6/503 , A61B6/504 , A61B6/544
摘要： A method of enhancing image quality and providing tissue composition information by analysis of energy discrimination data, the method comprising determining a radiation dosage at one or more energy spectrum levels based on patient parameters and user selected parameters. Computer-readable medium and systems that afford functionality of the type defined by this method are also contemplated in conjunction with the present technique.
摘要翻译：一种通过分析能量鉴别数据来增强图像质量和提供组织组成信息的方法，所述方法包括基于患者参数和用户选择的参数来确定一个或多个能量级别的辐射剂量。计算机可读介质和提供由该方法定义的类型的功能的系统也结合本技术考虑。

7. 发明申请

US20050129175A1 FOCAL SPOT SENSING DEVICE AND METHOD IN AN IMAGING SYSTEM 失效
公开(公告)号：US20050129175A1
公开(公告)日：2005-06-16
申请号：US10707422
申请日：2003-12-12
申请人： Bing Shen , David Hoffman , Thomas Toth
发明人： Bing Shen , David Hoffman , Thomas Toth
IPC分类号： A61B6/00 , A61B6/03 , G01N23/04
CPC分类号： A61B6/583 , A61B6/032 , A61B6/4021
摘要： A focal spot sensing device includes: a housing that resists x-ray beams; an opening disposed in a wall of the housing that allows an x-ray beam to enter the housing; and a sensor device disposed in the housing that interprets a position of the x-ray beam for calculating a position of a focal spot. An imaging system includes: an x-ray source that produces an x-ray beam and has a focal spot; a detector array that receives the x-ray beam and includes a focal spot sensing device, the focal spot sensing device includes: a housing that resists x-ray beams; an opening disposed in a wall of the housing that allows the x-ray beam to enter the housing; and a sensor device disposed in the housing that interprets a position of the x-ray beam for calculating a position of the focal spot. A method for sensing a focal spot, the method includes: receiving an x-ray beam into an opening of a focal spot sensing device; interpreting a position of the x-ray beam; and calculating or measuring a position of a focal spot.
摘要翻译：焦点感测装置包括：抵抗x射线束的壳体; 设置在壳体的壁中的允许X射线束进入壳体的开口; 以及设置在壳体中的传感器装置，其解释用于计算焦点位置的x射线束的位置。成像系统包括：x射线源，其产生x射线束并具有焦点; 接收所述X射线束并且包括焦点感测装置的检测器阵列，所述焦点感测装置包括：抵抗x射线束的壳体; 设置在壳体的壁中的允许X射线束进入壳体的开口; 以及设置在壳体中的传感器装置，其解释用于计算焦点位置的x射线束的位置。一种用于感测焦点的方法，所述方法包括：将x射线束接收到焦点感测装置的开口中; 解释x射线束的位置; 以及计算或测量焦斑的位置。

8. 发明申请

US20070078336A1 METHOD AND APPARATUS OF MULTI-ENERGY IMAGING 失效
标题翻译：多能量成像的方法与装置
公开(公告)号：US20070078336A1
公开(公告)日：2007-04-05
申请号：US11465947
申请日：2006-08-21
申请人： Thomas Toth
发明人： Thomas Toth
IPC分类号： A61B5/05
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/405 , A61B6/482 , G21K1/10
摘要： The present invention is directed to a method and apparatus of multi-energy data acquisition. An imaging system is also provided and includes a number of HF electromagnetic energy filters. The filters include at least a first and a second filter wherein the first filter is positioned in a path of HF electromagnetic energy when an HF electromagnetic energy source is energized to a first voltage and the second filter is positioned in the path of HF electromagnetic energy when the HF electromagnetic energy source is energized to a second voltage.
摘要翻译：本发明涉及多能数据采集的方法和装置。还提供了一种成像系统，并且包括多个HF电磁能量滤波器。滤波器包括至少第一滤波器和第二滤波器，其中当HF电磁能量源被激励到第一电压并且第二滤波器位于HF电磁能的路径中时，第一滤波器位于HF电磁能的路径中， HF电磁能源被激励到第二电压。

9. 发明授权

US06963670B2 CT dose reduction filter with a computationally efficient implementation 失效
标题翻译： CT剂量减少过滤器具有计算有效的实现
公开(公告)号：US06963670B2
公开(公告)日：2005-11-08
申请号：US09990030
申请日：2001-11-21
申请人： Gopal B. Avinash , Thomas Toth
发明人： Gopal B. Avinash , Thomas Toth
IPC分类号： G06T5/00 , G06K9/40
CPC分类号： G06T5/002 , G06T5/50 , G06T7/0012 , G06T2207/10081 , G06T2207/20012 , G06T2207/20016 , G06T2207/20192 , G06T2207/30004
摘要： A technique for reducing noise in pixel images includes modifying initial image data to prevent subsequent image data loss, shrinking the modified image, processing the shrunken image with known segmentation-based filtering techniques which identify and differentially processing structures within the image. After processing, the shrunken image is enlarged to the dimensions of the initial data and subsequently processed to correct intensity irregularities and to preserve CT numbers. The resulting technique is versatile and provides greatly improved computational efficiency while maintaining image quality, allowing for dose reduction during imaging.
摘要翻译：用于降低像素图像中的噪声的技术包括修改初始图像数据以防止随后的图像数据丢失，缩小修改的图像，使用已知的基于分割的滤波技术来处理缩小的图像，该技术识别和差异地处理图像内的结构。处理后，将缩小的图像放大到初始数据的尺寸，随后处理以校正强度不规则并保留CT数。所产生的技术是通用的并且在保持图像质量的同时提供大大提高的计算效率，从而允许成像期间的剂量减少。

10. 发明申请

US20050074085A1 Methods and apparatus for dynamical helical scanned image production 有权
标题翻译：动态螺旋扫描图像制作方法与装置
公开(公告)号：US20050074085A1
公开(公告)日：2005-04-07
申请号：US10680688
申请日：2003-10-07
申请人： Jiang Hsieh , Eugene Williams , Thomas Toth
发明人： Jiang Hsieh , Eugene Williams , Thomas Toth
IPC分类号： A61B5/055 , A61B6/03 , G01N23/04 , G06T1/00 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B5/055 , A61B6/027 , G01N23/046 , G01N2223/419 , G01N2223/612 , Y10S378/901
摘要： Some configurations of the present invention thus provide 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：因此，本发明的一些结构提供了一种用于产生物体的图像的方法。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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