公开(公告)号：WO2010015952A2

公开(公告)日：2010-02-11

申请号：PCT/IB2009053049

申请日：2009-07-14

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  GOTMAN SCHLOMO ,  VAN STEVENDAAL UDO ,  FORTHMANN PETER ,  SCHMITT HOLGER

Inventor： GOTMAN SCHLOMO ,  VAN STEVENDAAL UDO ,  FORTHMANN PETER ,  SCHMITT HOLGER

IPC: A61B6/03

CPC classification number: A61B6/032 ,  A61B6/12 ,  A61B6/466 ,  A61B6/488 ,  A61B6/542 ,  A61B6/545 ,  A61B6/56 ,  H05G1/34

Abstract: An imaging system includes a radiation source (110) that emits radiation that traverses an examination region. A controller (116) activates the radiation source (110) to emit radiation and deactivates the radiation source (110) to stop radiation emission. The controller (116) selectively activates the radiation source (110) to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component (124) that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component (128) that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system (132) that manipulates and navigates through the data set.

Abstract translation: 成像系统包括发射穿过检查区域的辐射的辐射源（110）。 控制器（116）激活辐射源（110）以发射辐射并使辐射源（110）停用以停止辐射发射。 控制器（116）选择性地激活辐射源（110）以以一个或多个预定角度发射辐射。 在另一个实施例中，成像系统包括基于图像数据生成被扫描对象的感兴趣对象的虚拟三维图像的数据处理组件（124）。 在另一个实施例中，成像系统与数据操纵和打包组件（128）通信，数据操作和打包组件（128）基于体积图像数据生成至少二维或三维数据集，并将数据集包装在提供给 远程系统（132），其操纵和导航数据集。

公开(公告)号：WO2008075267A3

公开(公告)日：2008-08-14

申请号：PCT/IB2007055083

申请日：2007-12-13

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  SHECHTER GILAD ,  GLASBERG SHMUEL ,  VAN STEVENDAAL UDO ,  FORTHMANN PETER ,  KOEHLER THOMAS ,  BONTUS CLAAS

Inventor： SHECHTER GILAD ,  GLASBERG SHMUEL ,  VAN STEVENDAAL UDO ,  FORTHMANN PETER ,  KOEHLER THOMAS ,  BONTUS CLAAS

IPC: A61B6/06

CPC classification number: A61B6/06

Abstract: An imaging device (100,200) for imaging a volume of interest (5,45) of a subject (4,44) comprises a radiation source (1) for emitting radiation (6), which is arranged for rotational movement around an axis (8) of the subject (4,44), a collimator (3) for collimating the radiation (6) at least in the axial direction of the subject (4,44) before traversing through the subject (4,44), a detector (2) for receiving the collimated radiation (11,12,13,14,15,16) that has traversed through the subject (4,44), and a control unit (7) for controlling the collimator (3) based on at least one geometry parameter that defines a geometrical relationship between the volume of interest (5,45) and the imaging device (100,200). The imaging device (100,200) provides for a reduced dose of radiation applied to the subject (4,44).

Abstract translation: 用于对受试者（4,44）感兴趣的体积（5,45）进行成像的成像装置（100,200）包括用于发射辐射（6）的辐射源（1），其布置成围绕轴线（8 ），用于在穿过被摄体（4,44）之前至少在被检体（4,44）的轴向上校准辐射（6）的准直器（3），检测器（4,44） 2），用于接收已经穿过被摄体的准直辐射（11,12,13,14,15,16），以及用于至少基于控制单元（7）控制准直仪（3）的控制单元（7） 一个几何参数，其定义感兴趣的体积（5,45）和成像装置（100,200）之间的几何关系。 成像装置（100,200）提供施加到对象的减少剂量的辐射（4,44）。

公开(公告)号：WO2010052615A3

公开(公告)日：2011-05-12

申请号：PCT/IB2009054792

申请日：2009-10-28

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  FORTHMANN PETER ,  SCHMITT HOLGER ,  VAN STEVENDAAL UDO ,  KOEHLER THOMAS

Inventor： FORTHMANN PETER ,  SCHMITT HOLGER ,  VAN STEVENDAAL UDO ,  KOEHLER THOMAS

IPC: G06T5/00 ,  G06T7/00 ,  G06T7/20

CPC classification number: G06T11/005 ,  G06T7/11 ,  G06T7/174 ,  G06T7/215 ,  G06T2207/10081 ,  G06T2207/20224 ,  G06T2207/30004 ,  G06T2211/412

Abstract: A method includes creating a second set of projection data that includes substantially only selected structure of interest based on a first set of projection data that includes the selected structure of interest and other structure. Another method includes generating a second plurality of sliding window slices for a last slice of a first plurality of slices, selecting a second sliding window slice from the second plurality of sliding window slices based on the last slice of the first plurality of slices, and generating a second plurality of slices, including a first slice and a last slice, from a range of projection data around projection data corresponding to the last slice of the first plurality of slices.

Abstract translation: 一种方法包括创建第二组投影数据，该投影数据基于包括所选择的感兴趣结构和其他结构的第一组投影数据基本上仅包括所选择的感兴趣结构。 另一种方法包括为第一多个片段的最后片段生成第二多个滑动窗口片段，基于第一多个片段的最后片段从第二多个滑动窗口片段中选择第二滑动窗口片段，以及生成 从与所述第一多个片段的最后片段相对应的投影数据周围的投影数据的范围的第二多个片段，包括第一片段和最后片段。

公开(公告)号：WO2007113704A3

公开(公告)日：2008-11-06

申请号：PCT/IB2007050896

申请日：2007-03-15

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  KOEHLER THOMAS ,  FORTHMANN PETER

Inventor： KOEHLER THOMAS ,  FORTHMANN PETER

IPC: G06T11/00 ,  G06T7/00

CPC classification number: G06T11/005 ,  A61B6/027 ,  G06T7/30 ,  G06T2207/30004

Abstract: A reconstruction method for an image of an object, the reconstruction method comprising receiving a first projection data set representing information about said object, receiving a second projection data set representing information about said object, reconstructing a first image of said object using the first projection data set, reconstructing a second image of said object using the second projection data set, performing a registration between the first image and the second image, and fusing the first image and the second image to said image of said object, wherein the first projecting data set and the second projecting data set are achieved by using a single radiation type.

Abstract translation: 一种用于对象的图像的重建方法，所述重建方法包括接收表示关于所述对象的信息的第一投影数据集，接收表示关于所述对象的信息的第二投影数据集，使用所述第一投影数据重建所述对象的第一图像 使用所述第二投影数据集重建所述对象的第二图像，执行所述第一图像和所述第二图像之间的对准，以及将所述第一图像和所述第二图像融合到所述对象的所述图像，其中，所述第一投影数据集 并且通过使用单个辐射类型来实现第二投影数据集。

公开(公告)号：WO2008099314A2

公开(公告)日：2008-08-21

申请号：PCT/IB2008050458

申请日：2008-02-08

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  KOEHLER THOMAS ,  FORTHMANN PETER ,  SCHMITT HOLGER

Inventor： KOEHLER THOMAS ,  FORTHMANN PETER ,  SCHMITT HOLGER

CPC classification number: G06T11/005 ,  A61B6/032 ,  A61B6/4233 ,  G06T7/11 ,  G06T7/174 ,  G06T2207/10081 ,  G06T2207/10124 ,  G06T2207/20224 ,  G06T2207/30004

Abstract: The invention relates to an apparatus for determining high density shadows in projection data, wherein the apparatus comprises a first projection data providing unit (1, 2, 3, 6, 7, 8) for providing first projection data, which correspond to a projection through an object having an amount of high density elements. The apparatus comprises further a second projection data providing unit (12) for providing second projection data, which correspond to a projection through a model of the object, in which the amount of high density elements is reduced. The apparatus further comprises a determination unit (13) for determining high density shadows in the first projection data by comparing the first projection data with the second projection data.

Abstract translation: 本发明涉及一种用于确定投影数据中的高密度阴影的装置，其中所述装置包括第一投影数据提供单元（1,2,3,6,7,8），用于提供第一投影数据，所述第一投影数据对应于通过 具有高密度元素量的物体。 该装置还包括第二投影数据提供单元（12），用于提供第二投影数据，第二投影数据对应于通过对象的模型的投影，其中高密度元素的量被减少。 该装置还包括：确定单元，用于通过将第一投影数据与第二投影数据进行比较来确定第一投影数据中的高密度阴影。

公开(公告)号：WO2007004195A2

公开(公告)日：2007-01-11

申请号：PCT/IB2006052247

申请日：2006-07-04

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  KOEHLER THOMAS ,  FORTHMANN PETER

Inventor： KOEHLER THOMAS ,  FORTHMANN PETER

CPC classification number: G06T11/006 ,  A61B6/027 ,  G06T2211/432

Abstract: CT scanners have a certain scan-field-of-view defined by the fan-angle of the system. According to an exemplary embodiment of the present invention, object points outside the scan-field-of-view may be reconstructed on the basis of a system of linear equations which may be solved iteratively and with reasonable effort. Therefore, explicit regularization techniques may be applied to recover the unknown object function.

Abstract translation: CT扫描仪具有由系统的扇角定义的特定扫描视场。 根据本发明的示例性实施例，可以基于线性方程式的系统重建扫描视野外的物点，其可以以合理的努力迭代地求解。 因此，可以应用明确的正则化技术来恢复未知对象的功能。

公开(公告)号：WO2006067671A3

公开(公告)日：2006-09-14

申请号：PCT/IB2005054198

申请日：2005-12-13

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  FORTHMANN PETER ,  KOEHLER THOMAS ,  MANZKE ROBERT ,  GRASS MICHAEL ,  ZIEGLER ANDY

Inventor： FORTHMANN PETER ,  KOEHLER THOMAS ,  MANZKE ROBERT ,  GRASS MICHAEL ,  ZIEGLER ANDY

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/541 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/503

Abstract: A method of recording images of the heart in computed tomography is provided in which, in order to prevent movement artifacts, the images are reconstructed on the basis of similar movement states of the heart and different radiation intensities are used for different movement states. During recording operation low-resolution images are continually reconstructed from the recorded data. The movement state of the heart is determined from the low- resolution images, preferably by comparing successive images. During the desired heart phase with little heart movement the power of the X-ray tube is increased. A high-resolution reconstruÌtion is carried out retrospectively from data recorded with a high radiation intensity in similar movement states with little heart movement. Also disclosed are a CT apparatus and a computer program for carrying out the method.

Abstract translation: 提供了一种在计算机断层摄影中记录心脏图像的方法，其中为了防止运动伪像，基于心脏的相似运动状态重建图像，并且不同的辐射强度用于不同的运动状态。 在记录操作期间，从记录的数据中连续重建低分辨率图像。 优选地，通过比较连续图像，从低分辨率图像确定心脏的移动状态。 在期望的心脏移动期间，X射线管的功率增加。 从具有较小的心脏运动的相似运动状态下以高辐射强度记录的数据追溯地进行高分辨率重建。 还公开了一种用于执行该方法的CT装置和计算机程序。