MAGNETIC FIELD UNIT OF AN MRI SYSTEM FOR IMAGE CAPTURING A HEAD REGION
    1.
    发明申请
    MAGNETIC FIELD UNIT OF AN MRI SYSTEM FOR IMAGE CAPTURING A HEAD REGION 有权
    用于图像捕获头部区域的MRI系统的磁场单元

    公开(公告)号:US20120146645A1

    公开(公告)日:2012-06-14

    申请号:US13376066

    申请日:2010-06-23

    IPC分类号: G01R33/44

    摘要: The invention relates to a magnetic field unit (1) of an MRI system (18) for image capturing a head region as the region to be recorded, comprising at least one permanent magnet (2) for generating a main magnetic field, a device (3) for generating a gradient field, and at least one coil (4) for generating and receiving radio frequencies. The magnetic field unit (1) is fastened to a mounting (19) such that a longitudinal axis (A) of the magnetic field unit (1), together with a vertically extending axis, forms an angle of no more than +45° and that the magnetic field unit (1) and the patient (P) can be adjusted relative to each other such that the magnetic field unit (1) can be moved to a position surrounding the head of the patient (P).

    摘要翻译: 本发明涉及一种MRI系统(18)的磁场单元(1),用于将头部区域图像捕获为要记录的区域,包括至少一个用于产生主磁场的永磁体(2),装置( 3),以及用于产生和接收射频的至少一个线圈(4)。 磁场单元(1)被紧固到安装件(19),使得磁场单元(1)的纵向轴线(A)连同垂直延伸的轴线形成不大于+ 45°的角度,并且 可以相对于彼此调节磁场单元(1)和患者(P),使得磁场单元(1)可以移动到围绕患者(P)的头部的位置。

    Magnetic field unit of an MRT system for image capturing a head region
    3.
    发明授权
    Magnetic field unit of an MRT system for image capturing a head region 有权
    用于图像捕获头部区域的MRT系统的磁场单元

    公开(公告)号:US08847597B2

    公开(公告)日:2014-09-30

    申请号:US13376066

    申请日:2010-06-23

    摘要: A magnetic field unit of an MRT system for image capturing a head region as the region to be recorded, comprising at least one permanent magnet for generating a main magnetic field, a device for generating a gradient field, and at least one coil for generating and receiving radio frequencies. The magnetic field unit is fastened to a mounting such that a longitudinal axis of the magnetic field unit, together with a vertically extending axis, forms an angle of no more than +45 degrees, and the magnetic field unit and the patient can be adjusted relative to each other such that the magnetic field unit can be moved to a position surrounding the head of the patient.

    摘要翻译: 用于图像捕获头区域作为待记录区域的MRT系统的磁场单元,包括至少一个用于产生主磁场的永磁体,用于产生梯度场的装置,以及用于产生和/ 接收射频。 磁场单元被紧固到安装件,使得磁场单元的纵向轴线与垂直延伸的轴线形成不超过+45度的角度,并且可以相对于磁场单元和患者进行相对调整 使得磁场单元可以移动到围绕患者头部的位置。

    System and method for enabling selection of an image registration transformation
    5.
    发明授权
    System and method for enabling selection of an image registration transformation 有权
    允许选择图像配准变换的系统和方法

    公开(公告)号:US08380007B2

    公开(公告)日:2013-02-19

    申请号:US12096648

    申请日:2006-12-05

    IPC分类号: G06K9/32

    摘要: System and method for enabling intra-operative selection of an image registration transformation for use in displaying a first image dataset and a second image dataset in correspondence with one another. Image dataset acquisition devices (12, 14) obtain the first and second image datasets. A similarity function indicative of a likelihood that the first and second image datasets are in correspondence with one another is computed by a processor (16) and then a ranking of each of a plurality of local maxima of the similarity function is determined. Registration transformations derived from a plurality of the local maxima are displayed on a display (18), and using a user-interface (22), a physician can select each registration transformation to ascertain visually whether it is the clinically-optimal registration transformation for subsequent use.

    摘要翻译: 用于使得能够在操作中选择图像配准变换以用于相互对应地显示第一图像数据集和第二图像数据集的系统和方法。 图像数据集获取装置(12,14)获得第一和第二图像数据集。 由处理器(16)计算指示第一和第二图像数据集彼此对应的可能性的相似度函数,然后确定相似度函数的多个局部最大值中的每一个的等级。 从多个本地最大值导出的登记变换被显示在显示器(18)上,并且使用用户界面(22),医师可以选择每个注册变换以在视觉上确定是否是用于后续的临床优化注册变换 使用。

    Catheter navigation system
    6.
    发明授权
    Catheter navigation system 有权
    导管导航系统

    公开(公告)号:US08108029B2

    公开(公告)日:2012-01-31

    申请号:US11997421

    申请日:2006-07-12

    申请人: Volker Rasche

    发明人: Volker Rasche

    IPC分类号: A61B5/05

    摘要: A method and system for navigation of a medical instrument, including: introducing at least three reference device(s) disposed to at least three reference locations; employing an imaging and guidance system to acquire a plurality of image projections corresponding to a desired anatomy including the reference devices, the plurality of image projections being sufficient to permit generating a three-dimensional modeling or reconstruction images corresponding to the reference devices. The method also includes measuring a position of the reference devices; formulating a transformation matrix based on comparing positions of the reference devices computed from the modeling or reconstruction images with the measured positions of the reference devices; and superimposing an image of a medical instrument in at least one of the plurality of image projections based on the transformation matrix and a position of the medical instrument.

    摘要翻译: 一种用于医疗器械导航的方法和系统,包括:引入设置在至少三个参考位置的至少三个参考装置; 使用成像和引导系统来获取对应于包括参考装置的期望解剖结构的多个图像投影,所述多个图像投影足以允许生成对应于参考装置的三维建模或重建图像。 该方法还包括测量参考装置的位置; 基于将从建模或重建图像计算的参考装置的位置与参考装置的测量位置的比较位置来制定变换矩阵; 以及基于所述变换矩阵和所述医疗器械的位置,将所述医疗器械的图像叠加在所述多个图像投影中的至少一个中。

    Low-dose iso-centering
    7.
    发明授权
    Low-dose iso-centering 有权
    低剂量等心

    公开(公告)号:US07845851B2

    公开(公告)日:2010-12-07

    申请号:US12065616

    申请日:2006-09-12

    申请人: Volker Rasche

    发明人: Volker Rasche

    IPC分类号: H05G1/02

    摘要: Iso-centering a volume of interest (VOI) (170) within a patient (168) to undergo examination on a rotational X-ray apparatus (100) is achieved by taking two differently-angled pictures (S210) and updating positional settings (172) for the patient's table (112) responsive to respectively displayed centering of the VOI (152). Alternatively, the operator identifies respective VOI centers (S410, S450) for each of the two displayed pictures, and corresponding table movement is automatically calculated (S420).

    摘要翻译: 通过采取两个不同角度的图像(S210)和更新位置设置(172)来实现在患者(168)内对感兴趣的体积(VOI)(170)进行对中以进行旋转X射线装置(100)的检查 ),用于响应于分别显示的VOI的中心点(152)的患者的桌子(112)。 或者,操作者为两个显示的图像中的每一个识别各自的VOI中心(S410,S450),并且自动计算相应的表移动(S420)。

    IMAGING SYSTEM FOR THE GENERATION OF HIGH-QUALITY X-RAY PROJECTIONS
    8.
    发明申请
    IMAGING SYSTEM FOR THE GENERATION OF HIGH-QUALITY X-RAY PROJECTIONS 失效
    用于生成高质量X射线投影的成像系统

    公开(公告)号:US20090080751A1

    公开(公告)日:2009-03-26

    申请号:US11576702

    申请日:2005-10-06

    IPC分类号: G06K9/00

    摘要: The invention relates to an imaging system and a method for generating high-quality X-ray projections (24) of a patient (1). The system comprises a rotational X-ray device (10), for example a cone-beam CT-gantry (12), and an associated data processing unit (20). During a medical intervention, low-dose raw projections (22) of the patient (1) are continuously generated from different directions. A volume of interest (23) is then reconstructed from said projections (22), from which high-quality virtual projections (24) can be calculated for a display on a monitor (25). The number and direction of said virtual projections (24) can be arbitrarily chosen by the user.

    摘要翻译: 本发明涉及一种用于产生患者(1)的高质量X射线投影(24)的成像系统和方法。 该系统包括旋转X射线装置(10),例如锥形束CT机架(12)和相关联的数据处理单元(20)。 在医疗干预期间,从不同方向连续地生成患者(1)的低剂量原始投影(22)。 然后从所述投影(22)重建感兴趣的体积(23),从而可以为监视器(25)上的显示计算高质量的虚拟投影(24)。 所述虚拟投影(24)的数量和方向可以由用户任意选择。

    System and Method for Enabling Selection of an Image Registration Transformation
    9.
    发明申请
    System and Method for Enabling Selection of an Image Registration Transformation 有权
    用于启用图像注册转换选​​择的系统和方法

    公开(公告)号:US20080279430A1

    公开(公告)日:2008-11-13

    申请号:US12096648

    申请日:2006-12-05

    IPC分类号: G06T7/00

    摘要: System and method for enabling intra-operative selection of an image registration transformation for use in displaying a first image dataset and a second image dataset in correspondence with one another. Image dataset acquisition devices (12, 14) obtain the first and second image datasets. A similarity function indicative of a likelihood that the first and second image datasets are in correspondence with one another is computed by a processor (16) and then a ranking of each of a plurality of local maxima of the similarity function is determined. Registration transformations derived from a plurality of the local maxima are displayed on a display (18), and using a user-interface (22), a physician can select each registration transformation to ascertain visually whether it is the clinically-optimal registration transformation for subsequent use.

    摘要翻译: 用于使得能够在操作中选择图像配准变换以用于相互对应地显示第一图像数据集和第二图像数据集的系统和方法。 图像数据集获取装置(12,14)获得第一和第二图像数据集。 由处理器(16)计算指示第一和第二图像数据集彼此对应的可能性的相似度函数,然后确定相似度函数的多个局部最大值中的每一个的等级。 从多个本地最大值导出的登记变换被显示在显示器(18)上,并且使用用户界面(22),医师可以选择每个注册变换以在视觉上确定是否是用于后续的临床优化注册变换 使用。

    Multiscale localization procedure
    10.
    发明申请
    Multiscale localization procedure 有权
    多尺度定位程序

    公开(公告)号:US20060267579A1

    公开(公告)日:2006-11-30

    申请号:US10553771

    申请日:2004-04-14

    IPC分类号: G01R33/025

    摘要: Position measurements are often performed using a localization system with a given fixed capture range and accuracy and resolution. Having a fixed capture range often comes at the cost of decreased accuracy and resolution. According to the present invention, at the start, a large capture range is provided where the accuracy and resolution is low. In this large capture area, the target area can be identified and aimed at. With this identification, a smaller capture range is iteratively provided and centered around the region of interest, which leads to an increased accuracy and resolution.

    摘要翻译: 位置测量通常使用具有给定的固定捕获范围和精度和分辨率的定位系统执行。 具有固定的捕获范围通常来自降低精度和分辨率的代价。 根据本发明,开始时提供了精度和分辨率低的大的捕获范围。 在这个大的捕获区域,目标区域可以被识别和瞄准。 通过这种识别,迭代地提供较小的捕获范围并以感兴趣的区域为中心,这导致增加的精度和分辨率。