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公开(公告)号：US20100069738A1
公开(公告)日：2010-03-18
申请号：US12513183
申请日：2007-11-05
申请人： Holger Timinger
发明人： Holger Timinger
CPC分类号： G01R33/3815 , G01R33/288 , G01R33/3804 , H01F6/02
摘要： The present invention relates to a magnetic resonance examination system (10) comprising a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18), and further comprising a magnetic field gradient system (30) selectively causing alternating gradient magnetic fields in the examination region (18), said magnetic field gradient system (30) being disposed outside of the main magnet (20). In order to provide a technique to ensure stable operation of the superconducting main magnet (20) of a magnetic resonance examination system (10) with such a magnetic field gradient system (30), it is suggested to provide the magnetic resonance examination system (10) with a predicting device (91) and a preventing device (92), the predicting device (91) being adapted to predict the behavior of the main magnet (20) due to the gradient magnetic fields (eg by calculating the expected heat load of the main magnet caused by an imaging protocol) and the preventing device (92) being adapted to prevent, based on the predicted behavior of the main magnet (20), the main magnet (20) from quenching.
摘要翻译： 本发明涉及一种磁共振检查系统（10），其包括围绕检查区域（18）并在检查区域（18）中产生主磁场的超导主磁体（20），并且还包括磁场梯度系统 （30）选择性地引起所述检查区域（18）中的交变梯度磁场，所述磁场梯度系统（30）设置在所述主磁体（20）的外部。 为了提供使用这种磁场梯度系统（30）确保磁共振检查系统（10）的超导主磁体（20）的稳定操作的技术，建议提供磁共振检查系统（10） ）具有预测装置（91）和防止装置（92），所述预测装置（91）适于预测由于梯度磁场引起的主磁体（20）的行为（例如，通过计算预期的热负荷 由成像协议引起的主磁体）和防止装置（92）适于基于主磁体（20）的预测行为来防止主磁体（20）淬火。
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公开(公告)号：US20100063387A1
公开(公告)日：2010-03-11
申请号：US12527946
申请日：2008-02-22
申请人： Holger Timinger
发明人： Holger Timinger
IPC分类号： A61B5/05
CPC分类号： A61B90/36 , A61B5/062 , A61B5/6843 , A61B34/20 , A61B2034/2055 , A61B2034/2068 , A61B2034/207 , A61B2090/065 , A61B2090/376 , A61B2090/3762 , A61B2090/3983
摘要： The invention relates to a pointing device (40) for indicating the spatial position of markers (2) to a localization system (10). The pointing device (40) comprises a sensor (42) that detects if a definite interaction with the marker (2) takes place. The sensor (42) may for example be a pressure sensor (42) that determines if the contact force exceeds a threshold which could lead to undesired shifts of the marker (2). The pointing device (40) is used to determine the spatial coordinates of the marker (2), which can then be registered with the image coordinates of the marker (2) in a stored image, e.g. a CT-image.
摘要翻译： 本发明涉及一种用于指示标记（2）到定位系统（10）的空间位置的指示装置（40）。 指示装置（40）包括检测是否发生与标记（2）的确定的相互作用的传感器（42）。 传感器（42）可以例如是压力传感器（42），其确定接触力是否超过可能导致标记（2）的不期望的移动的阈值。 指示装置（40）用于确定标记（2）的空间坐标，其可以随后以存储的图像例如标记物（2）的图像坐标进行登记。 CT图像。
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3.发明申请公开(公告)号：US20060149511A1
公开(公告)日：2006-07-06
申请号：US10537883
申请日：2003-12-05
申请人： Michael Kaus , Holger Timinger , Vladimir Pekar
发明人： Michael Kaus , Holger Timinger , Vladimir Pekar
IPC分类号： G06F17/10
CPC分类号： G06T7/149 , G06T7/12 , G06T2207/10081 , G06T2207/20092 , G06T2207/30012
摘要： The invention relates to a method of segmenting a three-dimensional structure from a three-dimensional, and in particular medical, data set while making allowance for user corrections. The method is performed with the help of a deformable three-dimensional model whose surface is formed by a network of nodes and mashes that connect these nodes. Once the model has been positioned at the point in the three-dimensional data set at which the structure to be segmented is situated and positions of nodes have, if necessary, been changed by known methods of segmentation, any desired nodes can be displaced manually. The nodes of the model are recalculated by making weighted allowance for the nodes that have been displaced manually.
摘要翻译： 本发明涉及一种从三维特别医疗数据集中分割三维结构同时允许用户校正的方法。 该方法借助于可变形的三维模型来执行，该模型的表面由连接这些节点的节点和捣碎网络形成。 一旦模型已经被定位在要被分割的结构位于的三维数据集中的位置，并且如果需要，节点的位置已经被已知的分割方法改变，任何期望的节点可以手动移位。 通过对已经手动移位的节点进行加权限制来重新计算模型的节点。
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公开(公告)号：US09872631B2
公开(公告)日：2018-01-23
申请号：US13133236
申请日：2009-11-27
申请人： Holger Timinger
发明人： Holger Timinger
CPC分类号： A61B5/05 , A61B5/0515 , A61B8/4494
摘要： The present invention relates to an arrangement (10) for influencing and/or detecting magnetic particles (100) in a region of action (300), which comprises selection means (210) for generating a magnetic selection field (211) having a pattern in space of its magnetic field strength such that a first sub-zone (301) having a low magnetic field strength and a second sub-zone (302) having a higher magnetic field strength are formed in the region of action (300). The arrangement further comprises drive means (220) for changing the position in space of the two sub-zones (301, 302) in the region of action (300) by means of a magnetic drive field (221) so that the magnetization of the magnetic material changes locally. The arrangement further comprises receiving means (230) for acquiring detection signals, which detection signals depend on the magnetization in the region of action (300), which magnetization is influenced by the change in the position in space of the first and second sub-zone (301, 302). Control means (76) are further introduced for controlling the selection means (210) to individually set the gradient strength of at least one of the static magnetic gradient fields (211) in a desired direction.
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5.发明授权Device and method for the determination of the position of a catheter in a vascular system 有权用于确定导管在血管系统中的位置的装置和方法公开(公告)号：US08983575B2
公开(公告)日：2015-03-17
申请号：US10597984
申请日：2005-02-18
CPC分类号： A61B5/06 , A61B5/062 , A61B6/12 , A61B34/20 , A61B90/36 , A61B2034/2051 , A61B2090/3958
摘要： The invention relates to a device and a method for the determination of the position of a catheter in a vascular system (8). In this, the measured positions (r1, r2) of two magnetic localizers at the tip of a catheter are displaced by correction vectors (k1, k2) while optimizing a quality dimension. The quality dimension includes a component taking account both of the deviation of the measured positions (r1, r2) from the vascular layout and of the deviation of the associated orientation (r2−r1) from the orientation of the vascular layout according to a vascular map. In addition, the quality dimension may include components which evaluate the measured shape of the catheter compared to the vascular map. An additional correction step can further ensure that the corrected positions (r1′, r2″) correspond to the preset fixed distance (d) of the localizers (4, 5).
摘要翻译： 本发明涉及一种用于确定导管在血管系统（8）中的位置的装置和方法。 在此，在优化质量维度的同时，通过校正矢量（k1，k2）使导管尖端处的两个定位器的测量位置（r1，r2）移位。 质量维度包括考虑到血管布局的测量位置（r1，r2）的偏差和相关联取向（r2-r1）与血管布局的取向（根据血管图）的偏差的分量 。 此外，质量维度可以包括与血管图相比评估导管的测量形状的组件。 附加的校正步骤还可以确保校正位置（r1'，r2“）对应于定位器（4,5）的预设固定距离（d）。
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公开(公告)号：US08134368B2
公开(公告)日：2012-03-13
申请号：US12513188
申请日：2007-11-05
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/288 , H01F6/02
摘要： The present invention relates to a magnetic resonance examination system (10) and to a method of operating such a magnetic resonance examination system (10). In particular the present invention relates to a magnetic resonance examination system (10) comprising a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18), and further comprising a magnetic field gradient system (30) selectively causing alternating gradient magnetic fields in the examination region (18), said magnetic field gradient system (30) being coupled to the main magnet (20). In order to provide a technique to reliably detect a quench of the superconducting main magnet (20) of such a magnetic resonance examination system (10) a detecting device (91) is suggested for detecting an emerging quench of the main magnet (20), said detecting device (91) being adapted to operate in different modes depending on the mode of operation of the magnetic resonance examination system (e.g. ramp-up, ramp-down or continuous operation).
摘要翻译： 本发明涉及磁共振检查系统（10）以及操作这种磁共振检查系统（10）的方法。 特别地，本发明涉及一种磁共振检查系统（10），其包括围绕检查区域（18）并在检查区域（18）中产生主磁场的超导主磁体（20），并且还包括磁场 梯度系统（30）选择性地在检查区域（18）中引起交变梯度磁场，所述磁场梯度系统（30）耦合到主磁体（20）。 为了提供可靠地检测这种磁共振检查系统（10）的超导主磁体（20）的淬火的技术，建议检测装置（91）用于检测主磁体（20）的出现的淬火， 所述检测装置（91）适于根据磁共振检查系统的操作模式（例如，上升，下降或连续操作）以不同的模式操作。
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公开(公告)号：US20080157755A1
公开(公告)日：2008-07-03
申请号：US10598013
申请日：2005-02-11
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。
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公开(公告)号：US20070197905A1
公开(公告)日：2007-08-23
申请号：US10557970
申请日：2004-05-06
申请人： Holger Timinger , Jorn Borgert , Sascha Kruger
发明人： Holger Timinger , Jorn Borgert , Sascha Kruger
IPC分类号： A61B5/05
CPC分类号： A61B5/7207 , A61B5/06 , A61B5/062 , A61B34/20 , A61B2017/00699 , A61B2017/00703 , A61B2034/107 , A61B2034/2051
摘要： The invention relates to a navigation system for navigating a catheter (3) in a vascular system (10), in which the current spatial position of the catheter (3) is continually measured by a locating device (2). The temporal sequence of the position signals obtained in this way is subjected to a filtering operation in order to compensate for cyclic intrinsic movements of the vascular system which are caused for example by the heartbeat. The filtering may comprise the suppression of amplitude maxima in the frequency spectrum at the heartbeat frequency. Furthermore, the filtering may comprise the calculation of a center of the trajectory in time windows of the length of the heartbeat.
摘要翻译： 本发明涉及用于导航血管系统（10）中的导管（3）的导航系统，其中导管（3）的当前空间位置由定位装置（2）连续测量。 以这种方式获得的位置信号的时间序列经过过滤操作，以补偿例如由心跳引起的血管系统的循环固有运动。 滤波可以包括在心跳频率处抑制频谱中的振幅最大值。 此外，滤波可以包括在心跳长度的时间窗口中的轨迹的中心的计算。
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公开(公告)号：US08058873B2
公开(公告)日：2011-11-15
申请号：US12513183
申请日：2007-11-05
申请人： Holger Timinger
发明人： Holger Timinger
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/288 , G01R33/3804 , H01F6/02
摘要： A magnetic resonance examination system (10) includes a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18) A magnetic field gradient system (30) selectively causes alternating gradient magnetic fields in the examination region (18). The magnetic field gradient system (30) is disposed outside of the main magnet (20). In order to provide stable operation of the superconducting main magnet (20) of a magnetic resonance examination system (10) with such a magnetic field gradient system (30), the magnetic resonance examination system (10) is provided with a predicting device (91) and a preventing device (92) The predicting device (91) predicts the behavior of the main magnet (20) due to the gradient magnetic fields (e.g., by calculating the expected heat load of the main magnet caused by an imaging protocol) and the preventing device (92) prevents, based on the predicted behavior of the main magnet (20), the main magnet (20) from quenching.
摘要翻译： 磁共振检查系统（10）包括围绕检查区域（18）并在检查区域（18）中产生主磁场的超导主磁体（20）。磁场梯度系统（30）选择性地引起交变梯度磁场 在检查区域（18）中。 磁场梯度系统（30）设置在主磁体（20）的外侧。 为了通过这种磁场梯度系统（30）提供磁共振检查系统（10）的超导主磁体（20）的稳定操作，磁共振检查系统（10）设置有预测装置（91 ）和防止装置（92）预测装置（91）由于梯度磁场（例如，通过计算由成像协议引起的主磁体的预期热负荷）来预测主磁体（20）的行为，以及 防止装置（92）基于主磁体（20）的预测行为防止主磁体（20）淬火。
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公开(公告)号：US20110273175A1
公开(公告)日：2011-11-10
申请号：US13139372
申请日：2009-12-14
IPC分类号： G01R33/24 , G01R33/383
CPC分类号： A61B5/055 , A61B5/0515 , G01R33/022 , G01R33/14 , G01R33/3802 , G01R33/383
摘要： The present invention relates to an arrangement (10) for influencing and/or detecting magnetic particles in a region of action (300). The arrangement (10) comprises selection means (210) for generating a magnetic selection field (211) having a pattern in space of its magnetic field strength such that a first sub-zone (301) having a low magnetic field strength and a second sub zone (302) having a higher magnetic field strength are formed in the region of action (300), drive means (220) for changing the position in space of the two sub-zones (301, 302) in the region of action (300) by means of a magnetic drive field (221) so that the magnetization of the magnetic material changes locally, and receiving means (230) for acquiring detection signals, which detection signals depend on the magnetization in the region of action (300), which magnetization is influenced by the change in the position in space of the first and second sub-zone (301, 302). The selection means (210) comprises a permanent magnetic assembly having at least one permanent magnetic unit (213) comprising a plurality of magnetic sub-elements (214) wherein the magnetic sub-elements (214) have individually fixed magnetization orientation, and are bonded together to form said at least one permanent magnetic unit (213).
摘要翻译： 本发明涉及用于在动作区域（300）中影响和/或检测磁性颗粒的装置（10）。 布置（10）包括选择装置（210），用于产生具有其磁场强度空间中的图案的磁选择场（211），使得具有低磁场强度的第一子区（301）和具有低磁场强度的第二子区 在动作区域（300）中形成具有较高磁场强度的区域（302），用于改变动作区域（300,302）中的两个子区域（301,302）的空间位置的驱动装置（220） ）通过磁驱动场（221）使得磁性材料的磁化在局部变化，以及用于获取检测信号的接收装置（230），该检测信号取决于作用区域（300）中的磁化，其中 磁化受到第一和第二子区（301,302）的空间位置变化的影响。 所述选择装置（210）包括具有至少一个包括多个磁性子元件（214）的永久磁性单元（213）的永久磁性组件，其中所述磁性子元件（214）具有单独固定的磁化取向， 一起形成所述至少一个永磁单元（213）。
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