公开(公告)号：US20070263916A1

公开(公告)日：2007-11-15

申请号：US10595875

申请日：2004-11-16

申请人： Volker Rasche ,  Babak Movassaghi

发明人： Volker Rasche ,  Babak Movassaghi

IPC分类号： G06K9/00 ,  G06K9/36

CPC分类号： G06T11/005 ,  G06T7/70 ,  G06T2211/412

摘要： The invention relates to a method for the three-dimensional reconstruction of an object such as for example a stent (5) in the coronary vessels of a patient. In the course of this, a series of X-ray projection photographs (A,) are produced from different directions, with the relevant ECG phase (E,) being recorded simultaneously. On the projection photographs (A,), the position of feature points (R, Q) is segmented (a). The photographs (A,) are furthermore allocated (b) into classes (Kp) according to their belonging to different sections (Epcl) of the heartbeat phase. For each of these classes, the corresponding spatial position ((x,y,z)Qp) of the feature points is established (e). In the next step (d), from the positions of the feature points (R, Q) that are now known for various heartbeat phases, the displacement vectors (SRp-m, SQp-m) or generally the transformations (Epm) are calculated which link (d) the positions of the feature points for different heartbeat phases (p, m). With the aid of these transformations, in a last step (e) a three-dimensional reconstruction can then be carried out for the whole stent (5) or its surroundings, by referring back to all the X-ray projection photographs from different heartbeat phases (p1, p2). In an alternative embodiment of the invention, projection photographs of a moving body volume are transformed such that the images of feature points that are located on the photographs respectively come to rest at a place on which (randomly) set spatial reference positions for the feature points are projected. With the projection photographs that are thus aligned onto the reference positions, three-dimensional reconstruction of the object can subsequently take place.

公开(公告)号：US20070025507A1

公开(公告)日：2007-02-01

申请号：US10571821

申请日：2004-09-16

申请人： Michael Grass ,  Volker Rasche

发明人： Michael Grass ,  Volker Rasche

IPC分类号： G01N23/04

CPC分类号： G06T11/005 ,  A61B6/027

摘要： The invention relates to an imaging process with a beam source attached at a first end of an holder device, and with a detector unit attached to a second end of the holder device. The holder device is moved so that the beam source is guided about an examination area along a non-circular trajectory, where the beams emitted by the beam source pass through the examination area. The detector unit acquires measurement values which depend on the intensity of the beams on the far side of the examination area. From these measurement values using a filtered back projection an image of the examination area can be reconstructed, where each measurement value is filtered along a filter line which runs parallel to the tangent of the trajectory at the respective position of the beam source.

摘要翻译： 本发明涉及一种成像过程，其中束源连接在保持器装置的第一端，并且检测器单元附接到保持器装置的第二端。 保持装置被移动，使得光束源沿着非圆形轨迹围绕检查区域被引导，其中由光束源发射的光束通过检查区域。 检测器单元获取取决于在检查区域的远侧的光束的强度的测量值。 使用滤波反投影的这些测量值可以重建检查区域的图像，其中每个测量值沿着平行于光束源的相应位置处的轨迹的切线延伸的滤波器线被滤波。

公开(公告)号：US20070016005A1

公开(公告)日：2007-01-18

申请号：US10556444

申请日：2004-05-06

申请人： Holger Timinger ,  Sascha Kruger ,  Hans-Aloy Wischmann ,  Jorn Borgert ,  Jorg Sabczynski ,  Volker Rasche

发明人： Holger Timinger ,  Sascha Kruger ,  Hans-Aloy Wischmann ,  Jorn Borgert ,  Jorg Sabczynski ,  Volker Rasche

IPC分类号： A61B5/05

CPC分类号： A61B8/0841 ,  A61B5/1135 ,  A61B6/12 ,  A61B8/0833

摘要： The invention relates to an apparatus and a method for recording the movement, caused in particular by breathing, of organs of the body such as the heart (9) for example. A part (3) of the diaphragm (10) is recorded by means of an X-ray device or an ultrasound device and the current position of the diaphragm is detected in the resulting image. Information about the associated position of other internal organs can be obtained from the position of the diaphragm with the aid of a model. This information can in turn be used, in a navigation system for a catheter, to set the spatial coordinates of the latter relative to the vascular system.

摘要翻译： 本发明涉及用于记录诸如心脏（9）的身体器官的特别是通过呼吸引起的运动的装置和方法。 通过X射线装置或超声波装置记录隔膜（10）的一部分（3），并在所得到的图像中检测膜片的当前位置。 借助于模型，可以从隔膜的位置获得关于其他内脏器官相关位置的信息。 在导管的导航系统中，该信息又可以用于设置后者相对于血管系统的空间坐标。

公开(公告)号：US07125165B2

公开(公告)日：2006-10-24

申请号：US10538444

申请日：2003-12-01

申请人： Jörn Lütjens ,  Volker Rasche

发明人： Jörn Lütjens ,  Volker Rasche

IPC分类号： A61B6/08 ,  H05G1/02

CPC分类号： A61B6/4441 ,  A61B6/583 ,  A61B6/587

摘要： The invention relates to an X-ray apparatus having a C-arm assembly (1) on which an X-ray source (4) and an X-ray detector (5) are arranged opposite one another, the C-arm assembly (1) being arranged to be rotatable about a propeller axis (9) and an axis of rotation (11). To enable calibration to take place even on-line during the acquisition of projected data, respective marker arrangements (14, 15) are mounted on the X-ray source (4) and the X-ray detector (5), and a camera arrangement (12) for detecting the marker arrangements (14, 15) is arranged on the C-arm assembly (1) to allow the positions of the X-ray source (4) and the X-ray detector (5) to be determined. With this arrangement, the problem of the blocking of lines of sight between the marker arrangements (14, 15) and the camera arrangement (12) is reduced or completely avoided.

摘要翻译： 本发明涉及具有C臂组件（1）的X射线设备，X射线源（4）和X射线探测器（5）彼此相对布置，C-臂组件（1） ）被布置成围绕螺旋桨轴线（9）和旋转轴线（11）可旋转。 为了在获取投影数据期间甚至在线进行校准，各自的标记装置（14,15）安装在X射线源（X）和X射线检测器（5）上，并且相机装置 （12）用于检测标记装置（14,15）布置在C形臂组件（1）上，以便确定X射线源（4）和X射线检测器（5）的位置。 利用这种布置，可以减少或完全避免在标记装置（14,15）和照相机装置（12）之间阻挡视线的问题。

公开(公告)号：US20060210019A1

公开(公告)日：2006-09-21

申请号：US10549267

申请日：2004-03-12

申请人： Volker Rasche ,  Babak Movassaghi ,  Marcel Boosten

发明人： Volker Rasche ,  Babak Movassaghi ,  Marcel Boosten

IPC分类号： G01N23/04 ,  A61B5/05

CPC分类号： A61B6/5264 ,  A61B6/00 ,  A61B6/503 ,  A61B6/508 ,  A61B6/541 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G06T11/005 ,  G06T2211/404 ,  G06T2211/412

摘要： An X-ray imaging method forms a set of a plurality of two-dimensional X-Ray projection images of a medical or veterinary object to be examined through a scanning rotation by an X-Ray source viz à viz the object. Such X-Ray images are acquired at respective predetermined time instants with respect to a functionality process produced by the object. From said set of X-Ray projection images by back-projection a three-dimensional volume image of the object is reconstructed. In particular, an appropriate motion correction is derived for the respective two-dimensional images, and subsequently as based on a motion vector field from the various corrected two-dimensional images the intended three-dimensional volume is reconstructed.

摘要翻译： X射线成像方法通过由X射线源进行扫描旋转来形成待检查的医疗或兽医物体的多个二维X射线投影图像的集合，即X射线源。 相对于由对象产生的功能处理，在相应的预定时刻获取这样的X射线图像。 通过反投影从所述X射线投影图像组中重构对象的三维体积图像。 具体地，针对相应的二维图像导出适当的运动校正，并且随后基于来自各种校正的二维图像的运动矢量场来重构预期的三维体积。

公开(公告)号：US20060173287A1

公开(公告)日：2006-08-03

申请号：US10541624

申请日：2003-12-19

申请人： Joerg Sabczynski ,  Volker Rasche

发明人： Joerg Sabczynski ,  Volker Rasche

IPC分类号： A61B5/05

CPC分类号： A61B6/12 ,  A61B5/06 ,  A61B5/062

摘要： The invention relates to a method and an arrangement for the intravascular or intracardial navigation of a catheter (5). Using an X-ray fluoroscopy device (1), firstly an image database of 2D images is generated, where at the same time as each 2D image (I) is taken the associated heartbeat phase is recorded using an ECG (8). During the catheter intervention, the position of the catheter (5) is measured by means of a position measurement unit (6), and at the same time the ECG and preferably also a signal that is dependent on the breathing movement are recorded. The current spatial position of the catheter (5) that is measured is then assigned the 2D image of the image database which corresponds in terms of the heartbeat phase and also possibly in terms of the breathing phase, on which image the position of the catheter can be represented.

摘要翻译： 本发明涉及用于导管（5）的血管内或心内导航的方法和装置。 使用X射线透视装置（1），首先生成2D图像的图像数据库，其中在采用每个2D图像（I）的同时，使用ECG（8）记录相关的心跳相位。 在导管介入期间，通过位置测量单元（6）测量导管（5）的位置，并且同时记录ECG并且优选地还取决于呼吸运动的信号。 然后将所测量的导管（5）的当前空间位置分配给图像数据库的2D图像，该图像数据库在心跳相位方面对应，并且还可以根据呼吸阶段，导管的位置在哪个图像上 被代表。

公开(公告)号：US06823204B2

公开(公告)日：2004-11-23

申请号：US10221240

申请日：2002-09-09

申请人： Michael Grass ,  Holger Schmitt ,  Volker Rasche

发明人： Michael Grass ,  Holger Schmitt ,  Volker Rasche

IPC分类号： A61B505

CPC分类号： A61B6/481 ,  A61B6/4014 ,  A61B6/504 ,  A61B6/507 ,  G06T17/00

摘要： The invention relates to a method of imaging a vascular tree that yields additional information concerning the vascular tree. To this end, a sequence of clusters is determined from spatially coherent voxels in the three-dimensional image of the vascular tree, the sequence of said clusters corresponding to the flow direction of the blood or the contrast medium in said vascular tree.

摘要翻译： 本发明涉及一种对血管树进行成像的方法，其产生关于血管树的附加信息。 为此，从血管树的三维图像中的空间相干体素确定簇序列，所述簇的序列对应于所述血管树中的血液或造影剂的流动方向。

公开(公告)号：US06813512B2

公开(公告)日：2004-11-02

申请号：US09976328

申请日：2001-10-12

申请人： Bernd Aldefeld ,  Friedrich-Karl Beckmann ,  Holger Eggers ,  Rolf Udo Dieter Kobs ,  Erhard Paul Artur Klotz ,  Michael Harald Kuhn ,  Dirk Manke ,  Volker Rasche ,  Georg Weidinger

发明人： Bernd Aldefeld ,  Friedrich-Karl Beckmann ,  Holger Eggers ,  Rolf Udo Dieter Kobs ,  Erhard Paul Artur Klotz ,  Michael Harald Kuhn ,  Dirk Manke ,  Volker Rasche ,  Georg Weidinger

IPC分类号： A61B500

CPC分类号： A61B5/065 ,  A61B5/055 ,  A61B5/06 ,  A61B34/20 ,  A61B90/361 ,  A61B90/37 ,  A61B2017/00243 ,  A61B2034/2051 ,  A61B2034/2063 ,  A61B2090/374 ,  A61B2090/3782 ,  A61B2090/3958

摘要： A device for determining the position of a medical instrument that is introduced into an object to be examined is also used for imaging the vicinity of the medical instrument. In order to enable the acquisition of instantaneous position information and image information from the vicinity of the medical instrument for all kinds of medical instruments, a localization device that is arranged in the end zone of the medical instrument that is to be introduced determines the position of the medical instrument within the object to be examined; at the same time image information is acquired in the vicinity of the medical instrument by an image acquisition device that is arranged on the medical instrument and on the basis of the position thus determined the position of the medical instrument (3) is reproduced in a survey image of the object to be examined and images of the vicinity of the object to be examined are displayed on the basis of the image information acquired.

摘要翻译： 用于确定被引入待检查物体的医疗器具的位置的装置也用于对医疗器械附近进行成像。 为了能够从用于各种医疗器械的医疗器械附近获取瞬时位置信息和图像信息，布置在待引入的医疗器械的端部区域中的定位装置决定了 待检对象内的医疗器械; 同时通过布置在医疗器械上的图像获取装置在医疗器械附近获取图像信息，并且基于如此确定的位置，在调查中再现医疗器械（3）的位置 基于所获取的图像信息，显示要被检查的对象的图像和被检查对象的附近的图像。

公开(公告)号：US06619840B2

公开(公告)日：2003-09-16

申请号：US09978115

申请日：2001-10-15

申请人： Volker Rasche ,  Joern Luetjens

发明人： Volker Rasche ,  Joern Luetjens

IPC分类号： H05G102

CPC分类号： A61B6/4441 ,  A61B6/032 ,  A61B6/4417 ,  A61B6/487

摘要： A C-arm X-ray system is disclosed which includes an X-ray source, an X-ray detector and a support C-arm mechanism including an outer and inner C-arm. The X-ray source and the X-ray detector are oppositely disposed on the inner C-arm. The inner C-arm is suspended upon at least one wheel construction disposed in the support C-arm. The inner C-arm may be automatically driven annularly outside of a first end of the C-arm support and into a second end of the C-arm support to close a gap normally found in conventional C-arm X-ray devices. Such construction allows the X-ray source and X-ray detector to rotate at least one full 360 degree cycle, providing an C-arm X-ray device capable of performing both fluoroscopic and CT procedures without a need to move a patient under examination (i.e., monitoring the patient in a common frame of reference for both applications).

公开(公告)号：US06570954B2

公开(公告)日：2003-05-27

申请号：US10050252

申请日：2002-01-16

申请人： Volker Rasche ,  Erhard Paul Artur Klotz ,  Reiner Koppe

发明人： Volker Rasche ,  Erhard Paul Artur Klotz ,  Reiner Koppe

IPC分类号： H05G160

CPC分类号： A61B6/0457 ,  A61B6/032

摘要： An X-ray device for the formation of slice images of an object to be examined including an X-ray source, an X-ray detector, a transport device for moving the object during the acquisition of a series of X-ray projection images of the object in a movement plane situated parallel to the imaging plane, and a control device for controlling the acquisition of the X-ray projection images and the transport device. Slice images of the object are formed from the X-ray projection images by a tomosynthesis method. In order to enable the formation of slice images of large objects to be examined, or of large parts thereof, within a period of time which is as short as possible, the X-ray source and the X-ray detector are stationary during the acquisition of the X-ray projection images and the control device is configured such that the speed of motion of the object and the moments of acquisition of the X-ray projection images are such that all points to be examined in an examination zone of the object are imaged in at least 10, but preferably in at least 50 different X-ray projection images.

摘要翻译： 一种用于形成待检查对象的切片图像的X射线装置，包括X射线源，X射线检测器，用于在获取一系列X射线投影图像期间移动物体的输送装置 在与成像平面平行的运动平面中的物体，以及用于控制X射线投影图像和运送装置的获取的控制装置。 通过断层合成法从X射线投影图像形成物体的切片图像。 为了能够在尽可能短的时间内形成要检查的大对象或其大部分的切片图像，在采集期间X射线源和X射线检测器是静止的 的X射线投影图像和控制装置被配置为使得物体的运动速度和X射线投影图像的获取时刻使得在对象的检查区域中要检查的所有点是 在至少10个，但优选至少50个不同的X射线投影图像中成像。