公开(公告)号：US07366279B2

公开(公告)日：2008-04-29

申请号：US10903298

申请日：2004-07-29

Applicant: Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Mark Ernest Vermilyea ,  Christopher David Unger ,  John Eric Tkaczyk ,  James Walter LeBlanc ,  Samit Kumar Basu ,  William Robert Ross ,  Jonathan David Short ,  Scott Stephen Zelakiewicz

Inventor： Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Mark Ernest Vermilyea ,  Christopher David Unger ,  John Eric Tkaczyk ,  James Walter LeBlanc ,  Samit Kumar Basu ,  William Robert Ross ,  Jonathan David Short ,  Scott Stephen Zelakiewicz

IPC: A61B6/03

CPC classification number: A61B6/032 ,  A61B6/4014 ,  A61B6/4028 ,  A61B6/4291 ,  A61B6/5282 ,  G21K1/025

Abstract: Various configurations for scatter reduction and control are provided for CT imaging. These configurations include an imaging system having a stationary detector extending generally around a portion of an imaging volume and a distributed X-ray source placed proximal to the stationary detector for radiating an X-ray beam toward the stationary detector. A scatter control system is further provided that is configured to adaptively operate in cooperation with the stationary detector and the distributed X-ray source to focally align collimator septa contained therein to the X-ray beam at a given focal point and to provide X-ray beam scatter control.

Abstract translation: 为CT成像提供了用于散射减少和控制的各种配置。 这些配置包括成像系统，其具有大致围绕成像体积的一部分延伸的固定检测器，以及放置在固定检测器附近的分布式X射线源，用于向固定检测器辐射X射线束。 还提供了一种散射控制系统，其被配置为与固定式检测器和分布式X射线源协作自适应地操作，以将给定焦点上的准直器隔片聚焦到X射线束，并提供X射线 光束散射控制。

公开(公告)号：US07835486B2

公开(公告)日：2010-11-16

申请号：US11726023

申请日：2007-03-20

Applicant: Samit Kumar Basu ,  Bruno De Man ,  Jed Douglas Pack ,  Xiaoye Wu ,  Zhye Yin ,  Peter Michael Edic

Inventor： Samit Kumar Basu ,  Bruno De Man ,  Jed Douglas Pack ,  Xiaoye Wu ,  Zhye Yin ,  Peter Michael Edic

IPC: G01N23/083

CPC classification number: G01T1/2985 ,  A61B6/027

Abstract: Systems and methods are provided for acquiring and reconstructing projection data that is mathematically complete or sufficient using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a distributed source is provided as arcuate segments offset in the X-Y plane and along the Z-axis.

Abstract translation: 提供了系统和方法，用于使用具有固定分布式X射线源和检测器阵列的计算机断层摄影（CT）系统来获取和重建数学上完整或足够的投影数据。 在一个实施例中，分布式源被提供为在X-Y平面和Z轴上偏移的弧形段。

公开(公告)号：US20100278296A1

公开(公告)日：2010-11-04

申请号：US12432225

申请日：2009-04-29

Applicant: Peter Michael Edic ,  Colin Richard Wilson ,  Samit Kumar Basu

Inventor： Peter Michael Edic ,  Colin Richard Wilson ,  Samit Kumar Basu

IPC: H05G1/60 ,  G21K3/00

CPC classification number: G21K1/10 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/482 ,  G01N2223/419 ,  G01N2223/423

Abstract: Methods for energy-sensitive computed tomography systems that use checkerboard filtering. A method of enhancing image analysis of projection data acquired using a detector configured with a checkerboard filter includes disposing in a system a detector to receive a transmitted beam of X-rays traversing through an object, where the system is configured so the detector receives both high- and one of total- and low-energy projection data; receiving the high- and one of total- and low-energy projection data at the detector; and then estimating an effective atomic number of the object and/or processing the projection data so as to mitigate reconstruction artifacts. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appended claims.

Abstract translation: 使用棋盘过滤的能量敏感计算机断层摄影系统的方法。 使用配置有棋盘滤波器的检测器获取的投影数据的图像分析增强方法包括在系统中设置检测器以接收穿过物体的X射线的透射束，其中系统配置为使得检测器接收高 - 和总能量和低能量投影数据之一; 在检测器处接收高能量投影数据和低能量投影数据之一; 然后估计对象的有效原子数和/或处理投影数据，以便减轻重建伪像。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。

公开(公告)号：US07280631B2

公开(公告)日：2007-10-09

申请号：US10816064

申请日：2004-04-01

Applicant: Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu ,  Peter Michael Edic ,  Robert Franklin Senzig ,  William Robert Ross ,  Xiaoye Wu ,  Colin Richard Wilson ,  Mark Ernest Vermilyea ,  Eugene Lino Saragnese

Inventor： Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu ,  Peter Michael Edic ,  Robert Franklin Senzig ,  William Robert Ross ,  Xiaoye Wu ,  Colin Richard Wilson ,  Mark Ernest Vermilyea ,  Eugene Lino Saragnese

IPC: G01N23/00

CPC classification number: A61B6/4275 ,  A61B6/027 ,  A61B6/03 ,  A61B6/032 ,  A61B6/4014 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/2985

Abstract: Configurations for stationary imaging systems are provided. The configurations may include combinations of various types of distributed sources of X-ray radiation, which generally include addressable emitter elements which may be triggered for emission in desired sequences and combinations. The sources may be ring-like, partial ring-like, or line-like (typically along a Z-axis), and so forth. Combinations of these are envisaged. Corresponding detectors may also be full ring detectors or partial ring detectors associated with the sources to provide sufficient coverage of imaging volumes and to provide the desired mathematical completeness of the collected data.

Abstract translation: 提供固定成像系统的配置。 这些配置可以包括各种类型的分布的X射线辐射源的组合，其通常包括可寻址的发射体元件，其可以以期望的顺序和组合被发射。 源可以是环状，部分环状或线状（通常沿Z轴），等等。 设想这些的组合。 相应的检测器还可以是与源相关联的全环检测器或部分环检测器，以提供成像体积的足够覆盖并提供收集的数据的期望的数学完整性。

公开(公告)号：US07016456B2

公开(公告)日：2006-03-21

申请号：US10699087

申请日：2003-10-31

Applicant: Samit Kumar Basu ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man

Inventor： Samit Kumar Basu ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man

IPC: A61B6/03

CPC classification number: A61B6/583 ,  A61B6/032

Abstract: The present invention provides a method for determining a geometry of a scanning volumetric computed tomographic (CT) system having a rotation axis, a rotational plane, an x-ray source and a detector. The method includes scanning a phantom having a series of spatially separated discrete markers with the scanning volumetric computed tomographic system, wherein the markers are configured on a supporting structure of the phantom so as to permit separate identification of each marker in a collection of projection images. The method further includes locating images of the markers in each projection, using the located marker images to assign marker locations to tracks, and using the assigned tracks, determining a relative alignment between the detector, the source, and the rotation axis of the scanning volumetric computed tomographic system.

Abstract translation: 本发明提供了一种用于确定具有旋转轴，旋转平面，x射线源和检测器的扫描体积计算机断层摄影（CT）系统的几何形状的方法。 该方法包括用扫描体积计算机断层摄影系统扫描具有一系列空间分离的离散标记的体模，其中标记被配置在体模的支撑结构上，以允许在投影图像的集合中单独识别每个标记。 该方法还包括使用定位的标记图像将标记的图像定位在每个投影中，以将标记位置分配给轨迹，并使用分配的轨迹，确定扫描体积的检测器，源和旋转轴之间的相对对准 计算机断层摄影系统。

公开(公告)号：US07844030B2

公开(公告)日：2010-11-30

申请号：US12264428

申请日：2008-11-04

Applicant: Colin R. Wilson ,  Antonio Caiafa ,  John Charles Hill ,  Samit Kumar Basu ,  Pierfrancesco Landolfi ,  Peter Michael Edic

Inventor： Colin R. Wilson ,  Antonio Caiafa ,  John Charles Hill ,  Samit Kumar Basu ,  Pierfrancesco Landolfi ,  Peter Michael Edic

IPC: H05G1/32 ,  H05G1/10 ,  H05G1/56

CPC classification number: H05G1/10 ,  A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  H05G1/58

Abstract: A system includes a generator configured to output at least one voltage level and an x-ray source configured to generate x-rays directed toward an object. The system includes a module coupled to the output of the generator and to an input of the x-ray source and configured to switch or assist in switching an output to the x-ray source between a first voltage level and a second voltage level.

Abstract translation: 系统包括被配置为输出至少一个电压电平的发生器和被配置为产生朝向对象的x射线的x射线源。 该系统包括耦合到发生器的输出和x射线源的输入的模块，并被配置为在第一电压电平和第二电压电平之间切换或辅助将输出切换到X射线源。

公开(公告)号：US20090245467A1

公开(公告)日：2009-10-01

申请号：US12264428

申请日：2008-11-04

Applicant: Colin R. Wilson ,  Antonio Caiafa ,  John Charles Hill ,  Samit Kumar Basu ,  Pierfrancesco Landolfi ,  Peter Michael Edic

Inventor： Colin R. Wilson ,  Antonio Caiafa ,  John Charles Hill ,  Samit Kumar Basu ,  Pierfrancesco Landolfi ,  Peter Michael Edic

IPC: H05G1/32 ,  H05G1/56

CPC classification number: H05G1/10 ,  A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  H05G1/58

Abstract: A system includes a generator configured to output at least one voltage level and an x-ray source configured to generate x-rays directed toward an object. The system includes a module coupled to the output of the generator and to an input of the x-ray source and configured to switch or assist in switching an output to the x-ray source between a first voltage level and a second voltage level.

Abstract translation: 系统包括被配置为输出至少一个电压电平的发生器和被配置为产生朝向对象的x射线的x射线源。 该系统包括耦合到发生器的输出和x射线源的输入的模块，并被配置为在第一电压电平和第二电压电平之间切换或辅助将输出切换到X射线源。

公开(公告)号：US07492855B2

公开(公告)日：2009-02-17

申请号：US10743195

申请日：2003-12-22

Applicant: Forrest Frank Hopkins ,  Peter Michael Edic ,  Samit Kumar Basu ,  Bruno De Man ,  James Walter Leblanc ,  Xiaoye Wu ,  Deborah Joy Walter ,  William Robert Ross ,  Colin Richard Wilson ,  Ricardo Scott Avila ,  Robert August Kaucic, Jr.

Inventor： Forrest Frank Hopkins ,  Peter Michael Edic ,  Samit Kumar Basu ,  Bruno De Man ,  James Walter Leblanc ,  Xiaoye Wu ,  Deborah Joy Walter ,  William Robert Ross ,  Colin Richard Wilson ,  Ricardo Scott Avila ,  Robert August Kaucic, Jr.

IPC: G01N23/04

CPC classification number: G01V5/0016 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041 ,  G01V5/005 ,  G06F19/00

Abstract: A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem utilizing a stationary radiation source and detector, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and a 2D/3D visualization subsystem. The detector may be an energy discriminating detector. The acquisition subsystem communicates view data to the reconstruction subsystem, which reconstructs it into image data and communicates it to the CAD subsystem. The CAD subsystem analyzes the image data to ascertain whether it contains any area of interest. Any such area of interest data is sent to the reconstruction subsystem for further reconstruction, using more rigorous algorithms and further analyzed by the CAD subsystem. Other information, such as risk variables or trace chemical detection information may be communicated to the CAD subsystem to be included in its analysis.

Abstract translation: 用于确定封闭物品内物体的身份的系统和方法。 该系统包括利用固定辐射源和检测器，重建子系统，计算机辅助检测（CAD）子系统和2D / 3D可视化子系统的采集子系统。 检测器可以是能量识别检测器。 采集子系统将视图数据传送到重建子系统，将其重建为图像数据并将其传送到CAD子系统。 CAD子系统分析图像数据，以确定它是否包含任何感兴趣的区域。 任何这样的感兴趣的数据区域被发送到重建子系统以进一步重建，使用更严格的算法并由CAD子系统进一步分析。 其他信息，例如风险变量或痕量化学检测信息可以传达给CAD子系统以包含在其分析中。

公开(公告)号：US07477771B2

公开(公告)日：2009-01-13

申请号：US11003114

申请日：2004-12-03

Applicant: Maria Iatrou ,  Jong Chul Ye ,  Samit Kumar Basu ,  Bruno Kristiaan Bernard De Man ,  Peter Michael Edic

Inventor： Maria Iatrou ,  Jong Chul Ye ,  Samit Kumar Basu ,  Bruno Kristiaan Bernard De Man ,  Peter Michael Edic

IPC: G06K9/00 ,  A61B6/00 ,  A61B5/05

CPC classification number: A61B6/032 ,  A61B6/027 ,  A61B6/503 ,  A61B6/5217 ,  A61B6/541 ,  G06T11/005 ,  G06T2211/412

Abstract: A method for extracting information of a cardiac cycle from projection data is presented. The method provides for acquiring one or more sets of computed tomography (CT) projection data. Further, the method includes analyzing the one or sets of CT projection data to obtain a center of cardiac mass. Also, the method provides for estimating raw motion data representative of the motion of the center of cardiac mass from the one or more sets of CT projection data. In addition, the method includes processing the center of mass through time to extract a motion signal from the raw projection data. Also, the method provides for extracting the periodicity information from the motion signal.

Abstract translation: 提出了一种从投影数据提取心动周期信息的方法。 该方法提供一组或多组计算机断层摄影（CT）投影数据。 此外，该方法包括分析一组或多组CT投影数据以获得心脏质量的中心。 此外，该方法还提供了用于从一个或多个CT投影数据集合估计表示心脏质心的运动的原始运动数据。 此外，该方法包括通过时间处理质心以从原始投影数据中提取运动信号。 此外，该方法提供从运动信号中提取周期性信息。

公开(公告)号：US20080056432A1

公开(公告)日：2008-03-06

申请号：US11725877

申请日：2007-03-20

Applicant: Jed Douglas Pack ,  Bruno De Man ,  Samit Kumar Basu ,  John Charles Hill ,  Xiaoye Wu ,  Peter Michael Edic

Inventor： Jed Douglas Pack ,  Bruno De Man ,  Samit Kumar Basu ,  John Charles Hill ,  Xiaoye Wu ,  Peter Michael Edic

IPC: H05G1/60

CPC classification number: G06T11/005 ,  A61B6/027 ,  G06T2211/416 ,  H01J2235/068

Abstract: Systems and methods are provided for reconstructing projection data that is mathematically complete or sufficient acquired using a computed tomography (CT) system. In one embodiment, a set of projection data representative of a sampled portion of a cylindrical surface is provided. The set of projection data is reconstructed using a suitable cone-beam reconstruction algorithm. In another embodiment, two or more sets of spatially interleaved helical projection data are processed using helical interpolation. The helically interpolated set of projection data is reconstructed using a two-dimensional axial reconstruction algorithm or a three-dimensional reconstruction algorithm.

Abstract translation: 提供了系统和方法，用于重建使用计算机断层摄影（CT）系统获得的数学上完整或足够的投影数据。 在一个实施例中，提供了一组代表圆柱形表面的采样部分的投影数据。 使用合适的锥束重建算法重建投影数据集。 在另一个实施例中，使用螺旋插值来处理两组或多组空间交错的螺旋投影数据。 使用二维轴向重建算法或三维重建算法重建螺旋插值的投影数据集。