公开(公告)号：DE50011802D1

公开(公告)日：2006-01-12

申请号：DE50011802

申请日：2000-09-12

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： KOEHLER THOMAS ,  RASCHE VOLKER ,  SABCZYNSKI JOERG

IPC: A61B6/08 ,  A61B6/10 ,  H04N5/32 ,  H04N7/18

Abstract: The apparatus includes an x-ray source (2) and an x-ray detector (3) for continuously detecting x-ray images of a patient from a non-varying position of the x-ray source and detector. Indicator devices (10) illuminate and/or monitor the region above the patient irradiated by the x-rays (62). The indicator devices may be arranged on the x-ray detector and/or on the x-ray source. The devices may include multiple laser diodes, light guides or a UV emitter.

公开(公告)号：DE10247832A1

公开(公告)日：2004-04-22

申请号：DE10247832

申请日：2002-10-14

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： MOVASSAGHI BABAK ,  RASCHE VOLKER ,  GRASS MICHAEL

IPC: G06T11/00 ,  G06T1/00

Abstract: The method involves determining central 2D central line points in 2D projection images of a first movement phase, modeling first 3D central line points in the same phase, projecting the first 3D central line points into second 2D images of a second phase, recording the 3D central line points projected into the second 2D images to obtain 2D central line points, iterating, determining the profile in the 2D images and reconstructing 3D images. The method involves determining central 2D central line points in at least two 2D projection images acquired in the same first movement phase (S1), modeling first 3D central line points in the same first phase (S2), projecting the first 3D central line points into at least two second 2D images acquired in a second phase (S3), recording the 3D central line points projected into the second 2D images to obtain 2D central line points (S4), iterating for more phases, determining the profile of the tubular structure element in the 2D images (S6) and reconstructing 3D images in different phases (S7). Independent claims are also included for the following: (a) an arrangement for producing four-dimensional image data records of a moving tubular structure (b) a computer program with a computer program arrangement for causing a computer to implement the inventive method.

公开(公告)号：DE602004031656D1

公开(公告)日：2011-04-14

申请号：DE602004031656

申请日：2004-08-09

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

Inventor： MOVASSAGHI BABAK ,  RASCHE VOLKER

IPC: G06T11/00 ,  G06T7/00

公开(公告)号：DE602004028588D1

公开(公告)日：2010-09-23

申请号：DE602004028588

申请日：2004-03-12

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： RASCHE VOLKER ,  MOVASSAGHI BABAK ,  BOOSTEN MARCEL

IPC: G06T11/00 ,  A61B6/00 ,  G01N23/04

公开(公告)号：DE60132004D1

公开(公告)日：2008-01-31

申请号：DE60132004

申请日：2001-10-17

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： RASCHE VOLKER ,  WEISS STEFFEN ,  OP DE BEEK JOHANNES C

IPC: A61B6/00

公开(公告)号：DE602004001973T2

公开(公告)日：2007-10-18

申请号：DE602004001973

申请日：2004-01-23

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： WEESE JUERGEN ,  RASCHE VOLKER ,  YOUNG STEWART ,  MOVASSAGHI BABAK

IPC: G06T7/00 ,  G06T5/00 ,  G06T17/10

Abstract: The invention relates to a method for the computer-aided reconstruction of a three-dimensional anatomical object ( 3 ) from diagnostic image data. First of all, a diagnostic image data set of the object ( 3 ) is acquired. Then a seed point ( 5 ) is set, starting from which the object is reconstructed within a reconstruction volume ( 4 ). Thereafter, an adjacent point of the reconstruction volume ( 4 ) likewise belonging to the object ( 3 ) is located in accordance with a propagation criterion, which is calculated by means of a mathematical analysis of local areas ( 6, 7 ), assigned to the point concerned, of the image data set Reconstruction of the three-dimensional structure of the object ( 3 ) is then performed within the reconstruction volume ( 4 ) by multiple repetition of this method step and propagation along the located adjacent points. To apply such a reconstruction method to image data obtained by means of rotational X-ray imaging, wherein a plurality of two-dimensional projection images ( 1, 2 ) are recorded from different projection directions, the invention proposes that the propagation criterion be calculated by subjecting the local image areas ( 6, 7 ) of the two-dimensional projection images ( 1, 2 ) in each case individually to the mathematical analysis.

公开(公告)号：WO2005018457A8

公开(公告)日：2007-02-15

申请号：PCT/IB2004051432

申请日：2004-08-10

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  GRASS MICHAEL ,  RASCHE VOLKER

Inventor： GRASS MICHAEL ,  RASCHE VOLKER

IPC: A61B6/00

CPC classification number: A61B6/481 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/504 ,  A61B6/541

Abstract: The invention relates to a method and a device for the three-dimensional reconstruction of the flow conditions in a vascular system (3), in which, in a first phase after the beginning of a contrast-medium injection, X-ray projection pictures are produced from the same direction (A) at a high picture-taking rate in order to observe the inflow of the contrast medium. When the contrast medium fills the vascular system (3), a rotation of the X­ray device (1) takes place during which projection pictures are produced at a lower picture­taking rate and/or at a lower radiation dose, from which pictures the three-dimensional structure of the vascular tree can be reconstructed. Optionally, at the end of the rotation, projection pictures may again be taken from a fixed direction that observe the drainage of the contrast medium from the vascular system (3).

Abstract translation: 本发明涉及一种用于三维重建血管系统（3）中的流动状态的方法和装置，其中在开始造影剂注射后的第一阶段，X射线投影图像是 以相同的方向（A）以高拍摄速度产生，以观察造影剂的流入。 当造影剂填充血管系统（3）时，发生X射线装置（1）的旋转，在此期间以较低的拍摄速度和/或较低的辐射剂量产生投影图像，从该图像的三维 可以重建血管树的结构。 可选地，在旋转结束时，投影图片可以再次从观察造影剂从血管系统（3）排出的固定方向获取。

公开(公告)号：WO2006003576A8

公开(公告)日：2006-11-23

申请号：PCT/IB2005052093

申请日：2005-06-24

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  RASCHE VOLKER

Inventor： RASCHE VOLKER

IPC: G06T17/40

CPC classification number: G06T19/00 ,  A61B5/1075 ,  A61B6/03 ,  A61B6/12 ,  A61B6/466 ,  G06T2210/41 ,  G06T2219/028

Abstract: The invention relates to an image processing system that is adapted to generate a three-dimensional image (32) from projections (P, 31) of a body volume which may for example be generated by a rotational X-ray system (10). The image processing system is further adapted to display on a monitor (30) simultaneously at least one of the original projections (31) and the generated 3D-image (32) together with a superimposed representation of a target region like an implantable stent. The user may then change the dimensions and the shape of the target region in any of the displayed images (31, 32) and watch the results in all images (31, 32). As the original projections (31) are free of errors generated by the reconstruction and visualization of the 3D-image (32), their consideration yields an improved geometrical accuracy.

公开(公告)号：WO2006003576A2

公开(公告)日：2006-01-12

申请号：PCT/IB2005052093

申请日：2005-06-24

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  RASCHE VOLKER

Inventor： RASCHE VOLKER

CPC classification number: G06T19/00 ,  A61B5/1075 ,  A61B6/03 ,  A61B6/12 ,  A61B6/466 ,  G06T2210/41 ,  G06T2219/028

Abstract: The invention relates to an image processing system that is adapted to generate a three-dimensional image (32) from projections (P, 31) of a body volume which may for example be generated by a rotational X-ray system (10). The image processing system is further adapted to display on a monitor (30) simultaneously at least one of the original projections (31) and the generated 3D-image (32) together with a superimposed representation of a target region like an implantable stent. The user may then change the dimensions and the shape of the target region in any of the displayed images (31, 32) and watch the results in all images (31, 32). As the original projections (31) are free of errors generated by the reconstruction and visualization of the 3D-image (32), their consideration yields an improved geometrical accuracy.

Abstract translation: 本发明涉及一种适于从例如由旋转X射线系统（10）生成的体积的投影（P，31）产生三维图像（32）的图像处理系统。 图像处理系统还适于在监视器（30）上同时显示原始投影（31）和生成的3D图像（32）中的至少一个以及诸如可植入支架的目标区域的叠加表示。 然后，用户可以在任何所显示的图像（31,32）中改变目标区域的尺寸和形状，并观察所有图像（31,32）中的结果。 由于原始投影（31）没有由3D图像（32）的重建和可视化产生的错误，因此它们的考虑产生改进的几何精度。

公开(公告)号：WO2006038166A3

公开(公告)日：2007-08-30

申请号：PCT/IB2005053217

申请日：2005-09-29

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

Inventor： BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

IPC: G06T11/00

CPC classification number: G06T11/005 ,  G06T2211/404 ,  G06T2211/412

Abstract: A device (104) for processing image data of a movable object (101), the device (104) comprising a processor adapted to carry out the method steps of receiving (410) an image data set reflecting a two-dimensional image according to a particular two­dimensional projection of the movable object (101) at a particular point of time, determining (420) an initial model for the two-dimensional image, wherein the initial model is determined based on predetermined structural information about the movable object (101) and based on predetermined motion characteristics of the movable object (101), and modifying (430) the determined initial model to obtain a final model for the two-dimensional image.

Abstract translation: 一种用于处理可移动物体（101）的图像数据的设备（104），所述设备（104）包括处理器，所述处理器适于执行所述方法步骤，以接收（410）反映二维图像的图像数据集 确定（420）二维图像的初始模型，其中基于关于可移动物体（101）的预定结构信息和 基于所述可移动物体（101）的预定运动特性，并且修改（430）所确定的初始模型以获得所述二维图像的最终模型。