公开(公告)号：WO2010041193A2

公开(公告)日：2010-04-15

申请号：PCT/IB2009054353

申请日：2009-10-05

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  FORTHMANN PETER ,  KOEHLER THOMAS ,  VAN STEVENDAAL UDO ,  BERTRAM MATTHIAS ,  WIESNER STEFFEN ,  SCHRETTER COLAS

Inventor： FORTHMANN PETER ,  KOEHLER THOMAS ,  VAN STEVENDAAL UDO ,  BERTRAM MATTHIAS ,  WIESNER STEFFEN ,  SCHRETTER COLAS

IPC: G01N23/04 ,  A61B6/03

CPC classification number: A61B6/032 ,  A61B5/107 ,  A61B6/027

Abstract: A method and apparatus are provided to improve CT image acquisition using a displaced acquisition geometry. A CT apparatus may be used having a source (102) and a detector (104) transversely displaced from a center (114) of a field of view (118) during acquisition of the projection data. The amount of transverse displacement may be determined based on the size of the object (108). The source and the detector may be adjusted to vary the size of the transverse field of view. The first data set acquired by the detector may be reconstructed and used to simulate missing projection data that could not be acquired by the detector at each projection angle. The measured projection data and the simulated projection data may be used to obtain a second data set. The second data set may be compared to the first data set to produce a corrected data set.

Abstract translation: 提供了一种方法和装置，用于改善使用位移采集几何形状的CT图像采集。 可以使用CT装置，在获取投影数据期间具有从视场（118）的中心（114）横向移位的源（102）和检测器（104）。 可以基于物体（108）的尺寸来确定横向位移量。 源和检测器可以被调节以改变横向视场的大小。 由检测器获取的第一数据集可以被重构并用于模拟在每个投影角度不能由检测器获取的丢失的投影数据。 所测量的投影数据和模拟投影数据可用于获得第二数据集。 可以将第二数据集与第一数据集进行比较以产生校正数据集。

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：WO2007060572A3

公开(公告)日：2007-10-25

申请号：PCT/IB2006054232

申请日：2006-11-14

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  GRASS MICHAEL ,  SCHAEFER DIRK ,  VAN STEVENDAAL UDO

Inventor： GRASS MICHAEL ,  SCHAEFER DIRK ,  VAN STEVENDAAL UDO

IPC: G06T7/00 ,  A61B5/00 ,  G06T11/00

CPC classification number: A61B6/032 ,  A61B6/027 ,  A61B6/12 ,  A61B6/541 ,  G06T7/20 ,  G06T11/006 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2211/412

Abstract: Cardiac CT imaging using gated reconstruction is currently limited in its temporal and spatial resolution. According to an exemplary embodiment of the present invention, an examination apparatus is provided in which an identification of a high contrast object is performed. This high contrast object is then followed through the phases, resulting in a motion vector field of the high contrast object, on the basis of which a motion compensated reconstruction is then performed.

Abstract translation: 使用门控重建的心脏CT成像目前在其时间和空间分辨率方面受到限制。 根据本发明的示例性实施例，提供一种检查装置，其中执行高对比度对象的识别。 然后，该对比度较高的对象随后进入相位，导致高对比度对象的运动矢量场，然后基于此进行运动补偿重建。

公开(公告)号：WO2007039876A3

公开(公告)日：2007-08-09

申请号：PCT/IB2006053630

申请日：2006-10-04

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  SCHLOMKA JENS-PETER ,  VAN STEVENDAAL UDO ,  THRAN AXEL ,  GREWER RUEDIGER

Inventor： SCHLOMKA JENS-PETER ,  VAN STEVENDAAL UDO ,  THRAN AXEL ,  GREWER RUEDIGER

IPC: G01N5/00

CPC classification number: G01V5/0025 ,  G01V5/005

Abstract: Whereas the CT image can be acquired in a single revolution, the CSCT image acquisition may require several revolutions. According to an exemplary embodiment of the present invention, a CT/CSCT apparatus may be provided which uses CT data acquired during the first revolution to optimize acquisition parameters for the subsequent revolutions. Furthermore, projection data acquired with a pre-scanner may also be used for determining current modulation or setting an optimum voltage for the subsequent CSCT scan.

Abstract translation: CT图像可以在一次旋转中获取，而CSCT图像采集可能需要几次旋转。 根据本发明的示例性实施例，可以提供一种CT / CSCT设备，其使用在第一次旋转期间获取的CT数据来优化随后旋转的采集参数。 此外，用预扫描器获取的投影数据也可用于确定当前的调制或为后续CSCT扫描设置最佳电压。