公开(公告)号：US6050724A

公开(公告)日：2000-04-18

申请号：US14714

申请日：1998-01-28

申请人： Georg Schmitz ,  Jorg Sabczynski

发明人： Georg Schmitz ,  Jorg Sabczynski

IPC分类号： A61B6/00 ,  A61B6/12 ,  A61B34/20 ,  A61B90/00 ,  G01N23/04

CPC分类号： A61B6/463 ,  A61B34/20 ,  A61B6/08 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/547 ,  G01N23/046 ,  A61B2034/2055 ,  A61B2034/2065 ,  A61B2090/363 ,  A61B6/4405 ,  A61B6/583 ,  G01N2223/419 ,  G01N2223/612

摘要： The invention relates to a method of position detection in X-ray imaging, and to a device for carrying out such a method by means of an X-ray apparatus, a detector device, including at least two detector elements, and an indicator device. The exact association of the X-ray image with the object imaged is very important notably for intraoperative imaging. Exact knowledge of the position and orientation of the components of the X-ray apparatus associated with the imaging system is required for this purpose. However, it is often problematic that the lines of sight of the position measuring system are obscured by attending staff or other apparatus. Therefore, in the device according to the invention the detector device is mounted on the X-ray apparatus and the indicator device is provided so as to be stationary on the object to be examined or stationary relative to the object to be examined. Also described is a method of position detection in X-ray imaging by means of such a device.

摘要翻译： 本发明涉及一种X射线成像中的位置检测方法以及通过X射线装置，包括至少两个检测器元件的检测器装置以及指示器装置来执行这种方法的装置。 X射线图像与成像对象的精确关联对于术中成像非常重要。 为此，需要对与成像系统相关联的X射线设备的部件的位置和方向的准确了解。 然而，位置测量系统的视线通常由参加人员或其它设备而被遮蔽是常常的问题。 因此，在根据本发明的装置中，检测器装置安装在X射线装置上，并且指示装置被设置成相对于被检查物体静止在被检查物体或静止物上。 还描述了通过这种装置的X射线成像中的位置检测方法。

公开(公告)号：US07652468B2

公开(公告)日：2010-01-26

申请号：US10598013

申请日：2005-02-11

申请人： Sascha Kruger ,  Hans-Aloys Wischmann ,  Holger Timinger ,  Jorg Sabczynski ,  Jorn Borgert

发明人： Sascha Kruger ,  Hans-Aloys Wischmann ,  Holger Timinger ,  Jorg Sabczynski ,  Jorn Borgert

IPC分类号： G01B7/0004 ,  G01B7/14 ,  A61B5/05

CPC分类号： A61B5/06 ,  A61B5/062 ,  A61B34/20 ,  A61B90/36 ,  A61B2034/2051

摘要： The invention relates to a device and a method for correction of the position (x) of a field sensor (4) measured by means of a magnetic localization device. External field distortions, such as caused for example by the rotating components (1a, 1b) of a computer tomograph (1), are then determined with the help of reference sensor (3) placed at a known position. It is possible to deduce, for example, the current angle of rotation (Φ) of the computer tomograph (1) from the measurement signals of the reference sensor (3). Based on an empirically determined correction (δ(x, Φ)), the uncorrected determined positions (x) of the field sensor (4) can then be converted to corrected positions (x′) in relation to the field distortions. The field generator (2) and the reference sensor (3) are preferably fastened to the gantry in order to eliminate the dependency of the field distortions on an inclination of the gantry.

摘要翻译： 本发明涉及用于校正通过磁定位装置测量的场传感器（4）的位置（x）的装置和方法。 然后借助放置在已知位置的参考传感器（3）来确定诸如由计算机断层摄影机（1）的旋转部件（1a，1b）引起的外部场失真。 例如，可以从参考传感器（3）的测量信号推断计算机断层摄影机（1）的当前旋转角度（Phi）。 基于经验确定的校正（delta（x，Phi）），场传感器（4）的未校正的确定位置（x）可随后被转换为与场失真相关的校正位置（x'）。 场发生器（2）和参考传感器（3）优选地紧固到台架，以消除场失真对台架倾斜的依赖性。

公开(公告)号：US06471399B1

公开(公告)日：2002-10-29

申请号：US09601894

申请日：2000-08-08

申请人： Waldermar Zylka ,  Jorg Sabczynski ,  Jürgen Weese

发明人： Waldermar Zylka ,  Jorg Sabczynski ,  Jürgen Weese

IPC分类号： G01D1800

CPC分类号： A61B6/583 ,  A61B6/547

摘要： In an X-ray examination device and a method for generating distortion-free X-ray images the imaging properties are calculated and distortions are corrected by providing at least one calibration member (7, 8) for forming a reference pattern; a correction unit (13) corrects the distortions in X-ray images on the basis of the pattern of the calibration members (7, 8) actually formed in the patient X-ray image (FIG. 4) and the calculated reference pattern.

摘要翻译： 在X射线检查装置和用于产生无畸变X射线图像的方法中，通过提供用于形成参考图案的至少一个校准构件（7,8）来计算成像特性并校正失真， 校正单元（13）基于实际形成在患者X射线图像（图4）中的校准构件（7,8）的图案和所计算的参考图案来校正X射线图像中的失真。

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：US20080157755A1

公开(公告)日：2008-07-03

申请号：US10598013

申请日：2005-02-11

申请人： Sascha Kruger ,  Hans-Aloys Wischmann ,  Holger Timinger ,  Jorg Sabczynski ,  Jorn Borgert

发明人： Sascha Kruger ,  Hans-Aloys Wischmann ,  Holger Timinger ,  Jorg Sabczynski ,  Jorn Borgert

IPC分类号： G01B7/004

CPC分类号： A61B5/06 ,  A61B5/062 ,  A61B34/20 ,  A61B90/36 ,  A61B2034/2051

摘要： The invention relates to a device and a method for correction of the position (x) of a field sensor (4) measured by means of a magnetic localization device. External field distortions, such as caused for example by the rotating components (1a, 1b) of a computer tomograph (1), are then determined with the help of reference sensor (3) placed at a known position. It is possible to deduce, for example, the current angle of rotation (Φ) of the computer tomograph (1) from the measurement signals of the reference sensor (3). Based on an empirically determined correction (δ(x, Φ)), the uncorrected determined positions (x) of the field sensor (4) can then be converted to corrected positions (x′) in relation to the field distortions. The field generator (2) and the reference sensor (3) are preferably fastened to the gantry in order to eliminate the dependency of the field distortions on an inclination of the gantry.

摘要翻译： 本发明涉及用于校正通过磁定位装置测量的场传感器（4）的位置（x）的装置和方法。 然后借助放置在已知位置的参考传感器（3）来确定诸如由计算机断层摄影机（1）的旋转部件（1a，1b）引起的外部场失真。 例如，可以从参考传感器（3）的测量信号推断计算机断层摄影机（1）的当前旋转角度（Phi）。 基于经验确定的校正（delta（x，Phi）），场传感器（4）的未校正的确定位置（x）可随后被转换为与场失真相关的校正位置（x'）。 场发生器（2）和参考传感器（3）优选地紧固到台架，以消除场失真对台架倾斜的依赖性。