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：US07778386B2

公开(公告)日：2010-08-17

申请号：US11741359

申请日：2007-04-27

Applicant: Zhye Yin ,  Jed Douglas Pack ,  Bruno K. B. De Man ,  Norbert J. Pelc

Inventor： Zhye Yin ,  Jed Douglas Pack ,  Bruno K. B. De Man ,  Norbert J. Pelc

IPC: A61B6/03

CPC classification number: G06T11/006 ,  G06T2211/416 ,  G06T2211/421

Abstract: Disclosed are embodiments of methods for reconstructing x-ray projection data (e.g., one or more sinograms) acquired using a multi-source, inverse-geometry computed tomography (“IGCT”) scanner. One embodiment of a first method processes an IGCT sinogram by rebinning first in “z” and then in “xy,” with feathering applied during the “xy” rebinning. This produces an equivalent of a multi-axial 3rd generation sinogram, which may be further processed using a parallel derivative and/or Hilbert transform. A TOM-window (with feathering) technique and a combines backprojection technique may also be applied to produce a reconstructed volume. An embodiment of a second method processes an IGCT sinogram using a parallel derivative and/or redundancy weighting. The second method may also use signum weighting, TOM-windowing (with feathering), backprojection, and a Hilbert Inversion to produce another reconstructed volume.

Abstract translation: 公开了用于重建使用多源反相几何计算机断层摄影（“IGCT”）扫描仪获取的x射线投影数据（例如，一个或多个正弦图）的方法的实施例。 第一种方法的一个实施例通过在“z”中首先重新组合，然后在“xy”中重新组合来处理IGCT正弦图，在“xy”重组期间应用羽化。 这产生等效的多轴第三代正弦图，其可以使用平行导数和/或希尔伯特变换进一步处理。 TOM窗口（具有羽化）技术和组合的反投影技术也可以应用于产生重建体积。 第二种方法的实施例使用并行导数和/或冗余加权处理IGCT正弦图。 第二种方法还可以使用信号加权，TOM窗口（具有羽化），反投影和希尔伯特反演来产生另一个重建的体积。

公开(公告)号：US08615121B2

公开(公告)日：2013-12-24

申请号：US13149734

申请日：2011-05-31

Applicant: Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

Inventor： Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

IPC: G06K9/00

CPC classification number: G06T11/006 ,  G06T2211/436

Abstract: Algorithms are disclosed that recombine acquired data so as to generate a substantially uniform and complete set of frequency data where frequency data might otherwise be incomplete. This process, or its equivalent, may be accomplished in a computationally efficient manner using filtering steps in one or both of the reconstruction space and/or the post-processing space.

Abstract translation: 公开了算法，其重组所获取的数据，以便产生基本均匀且完整的频率数据集合，其中频率数据可能不完整。 该过程或其等同物可以以计算有效的方式使用在重建空间和/或后处理空间中的一个或两者中的过滤步骤来完成。

公开(公告)号：US20130003914A1

公开(公告)日：2013-01-03

申请号：US13174438

申请日：2011-06-30

Applicant: Zhye Yin ,  Roy Arnulf Helge Nilsen ,  Jiahua Fan ,  Thomas Matthew Benson ,  Bruno Kristiaan Bernard De Man ,  Jed Douglas Pack ,  Kai Zeng

Inventor： Zhye Yin ,  Roy Arnulf Helge Nilsen ,  Jiahua Fan ,  Thomas Matthew Benson ,  Bruno Kristiaan Bernard De Man ,  Jed Douglas Pack ,  Kai Zeng

IPC: A61B6/03

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/405 ,  A61B6/4085 ,  A61B6/4435 ,  A61B6/542

Abstract: Approaches for acquiring CT image data corresponding to a full scan, but at a reduced dose are disclosed. In one implementation, X-ray tube current modulation is employed to reduce the effective dose. In other implementations, acquisition of sparse views, z-collimation, and two-rotation acquisition protocols may be employed to achieve a reduced dose relative to a full-scan acquisition protocol.

Abstract translation: 公开了用于获取对应于全扫描但以减小剂量的CT图像数据的方法。 在一个实施方案中，采用X射线管电流调制来降低有效剂量。 在其他实施方案中，可采用稀疏视图，z准直和双旋转采集协议的采集来实现相对于全扫描采集协议的减少的剂量。

公开(公告)号：US20100158194A1

公开(公告)日：2010-06-24

申请号：US12340787

申请日：2008-12-22

Applicant: Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

Inventor： Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

IPC: H05G1/64 ,  G06K9/00

CPC classification number: A61B6/032 ,  A61B6/027 ,  G06T11/006

Abstract: A method of performing a computed tomographic image reconstruction is provided. The method provides for performing a short scan of an imaging object to acquire a short scan data, performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions, filtering the plurality of image volumes such that when the volumes are added together, the frequency domain data is substantially uniformly weighted. Further, the method provides for combining the plurality of image volumes together to produce a final image volume.

Abstract translation: 提供了一种执行计算机断层图像重建的方法。 该方法提供对成像对象进行短扫描以获取短扫描数据，基于短扫描数据执行多个图像重建，其中多个图像重建产生相应的多个图像体积，其中图像重建使用 不同的视图加权函数，对多个图像卷进行过滤，使得当体积相加在一起时，频域数据基本上均匀加权。 此外，该方法提供将多个图像体积组合在一起以产生最终图像体积。

公开(公告)号：US20080123803A1

公开(公告)日：2008-05-29

申请号：US11563061

申请日：2006-11-24

Applicant: Bruno K.B. De Man ,  Colin R. Wilson ,  Bernhard Claus ,  Maria Iatrou ,  James W. LeBlanc ,  Dirk Beque ,  Samit Kumar Basu ,  Mark Vermilyea ,  Zhye Yin

Inventor： Bruno K.B. De Man ,  Colin R. Wilson ,  Bernhard Claus ,  Maria Iatrou ,  James W. LeBlanc ,  Dirk Beque ,  Samit Kumar Basu ,  Mark Vermilyea ,  Zhye Yin

IPC: A61B6/00

CPC classification number: G01N23/046 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4085 ,  G01N2223/419 ,  G01N2223/612

Abstract: A CT imaging system includes a rotatable gantry having an opening to receive an object to be scanned. A plurality of x-ray emission sources are attached to the rotatable gantry, each x-ray emission source configured to emit x-rays in a conebeam toward the object. The CT imaging system also includes a plurality of x-ray detector arrays attached to the gantry and positioned to receive x-rays passing through the object. At least one x-ray detector array of the plurality of x-ray detector arrays is configured to receive x-rays from more than one x-ray emission source.

Abstract translation: CT成像系统包括具有用于接收待扫描物体的开口的可旋转机架。 多个x射线发射源附着在可旋转机架上，每个X射线发射源被配置为朝向物体发射锥形束中的x射线。 CT成像系统还包括多个附接到台架的X射线检测器阵列，并被定位成接收通过物体的X射线。 多个X射线检测器阵列中的至少一个X射线检测器阵列被配置为从多于一个x射线发射源接收x射线。

公开(公告)号：US09326738B2

公开(公告)日：2016-05-03

申请号：US13174438

申请日：2011-06-30

Applicant: Zhye Yin ,  Roy Arnulf Helge Nilsen ,  Jiahua Fan ,  Thomas Matthew Benson ,  Bruno Kristiaan Bernard De Man ,  Jed Douglas Pack ,  Kai Zeng

Inventor： Zhye Yin ,  Roy Arnulf Helge Nilsen ,  Jiahua Fan ,  Thomas Matthew Benson ,  Bruno Kristiaan Bernard De Man ,  Jed Douglas Pack ,  Kai Zeng

IPC: A61B6/03 ,  A61B6/06 ,  A61B6/00

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/405 ,  A61B6/4085 ,  A61B6/4435 ,  A61B6/542

Abstract: Approaches for acquiring CT image data corresponding to a full scan, but at a reduced dose are disclosed. In one implementation, X-ray tube current modulation is employed to reduce the effective dose. In other implementations, acquisition of sparse views, z-collimation, and two-rotation acquisition protocols may be employed to achieve a reduced dose relative to a full-scan acquisition protocol.

Abstract translation: 公开了用于获取对应于全扫描但以减小剂量的CT图像数据的方法。 在一个实施方案中，采用X射线管电流调制来降低有效剂量。 在其他实施方案中，可采用稀疏视图，z准直和双旋转采集协议的采集来实现相对于全扫描采集协议的减少的剂量。

公开(公告)号：US20120308101A1

公开(公告)日：2012-12-06

申请号：US13149732

申请日：2011-05-31

Applicant: Kai Zeng ,  Jed Douglas Pack ,  Bruno Kristiaan Bernard DeMan ,  Zhye Yin ,  Kyle Morgan Champley

Inventor： Kai Zeng ,  Jed Douglas Pack ,  Bruno Kristiaan Bernard DeMan ,  Zhye Yin ,  Kyle Morgan Champley

IPC: G06K9/00

CPC classification number: G06T11/008 ,  G06T2211/432

Abstract: Approaches are described for generating an initial reconstruction of CT data acquired using a wide-cone system. The initial reconstruction may be processed (such as via a non-linear operation) to correct frequency omissions and/or errors in the reconstruction. Corrected frequency information may then be added to the reconstruction to improve the reconstructed image.

Abstract translation: 描述了用于生成使用广锥系统获取的CT数据的初始重建的方法。 可以处理初始重建（诸如经由非线性操作）以校正重建中的频率遗漏和/或错误。 然后可以将校正的频率信息添加到重建中以改善重建的图像。

公开(公告)号：US08284892B2

公开(公告)日：2012-10-09

申请号：US12340787

申请日：2008-12-22

Applicant: Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

Inventor： Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

IPC: A61B6/03

CPC classification number: A61B6/032 ,  A61B6/027 ,  G06T11/006

Abstract: A method of performing a computed tomographic image reconstruction is provided. The method provides for performing a short scan of an imaging object to acquire a short scan data, performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions, filtering the plurality of image volumes such that when the volumes are added together, the frequency domain data is substantially uniformly weighted. Further, the method provides for combining the plurality of image volumes together to produce a final image volume.

Abstract translation: 提供了一种执行计算机断层图像重建的方法。 该方法提供对成像对象进行短扫描以获取短扫描数据，基于短扫描数据执行多个图像重建，其中多个图像重建产生相应的多个图像体积，其中图像重建使用 不同的视图加权函数，对多个图像卷进行过滤，使得当体积相加在一起时，频域数据基本上均匀加权。 此外，该方法提供将多个图像体积组合在一起以产生最终图像体积。

公开(公告)号：US07706499B2

公开(公告)日：2010-04-27

申请号：US11725892

申请日：2007-03-20

Applicant: Jed Douglas Pack ,  Zhye Yin ,  Samit Kumar Basu ,  John Charles Hill ,  Peter Michael Edic

Inventor： Jed Douglas Pack ,  Zhye Yin ,  Samit Kumar Basu ,  John Charles Hill ,  Peter Michael Edic

IPC: H05G1/60

CPC classification number: G01T1/2985 ,  A61B6/027

Abstract: Systems and methods are provided for acquiring and reconstructing projection data using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a non-sequential activation of X-ray source locations on an annular source is employed to acquire projection data. In another embodiment, a distributed source is tilted relative to an axis of the scanner to acquire the projection data. In a further embodiment, a plurality of X-ray source locations on an annular source are activated such that the aggregated signals correspond to two or more sets of spatially interleaved helical scan data.

Abstract translation: 提供了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）系统来获取和重建投影数据的系统和方法。 在一个实施例中，使用在环形源上的X射线源位置的非顺序激活来获取投影数据。 在另一个实施例中，分布式源相对于扫描器的轴线倾斜以获取投影数据。 在另一实施例中，环形源上的多个X射线源位置被激活，使得聚集的信号对应于两组或多组空间交错的螺旋扫描数据。