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    Method and device for user-specific parameterization of an x-ray device
    1.
    发明申请
    Method and device for user-specific parameterization of an x-ray device 有权
    用于X射线设备的用户特定参数化的方法和设备

    公开(公告)号：US20060002513A1

    公开(公告)日：2006-01-05

    申请号：US11170661

    申请日：2005-06-29

    申请人： Philipp Bernhardt ,  Marcus Pfister ,  Rudolf Sollacher ,  Volker Tresp

    发明人： Philipp Bernhardt ,  Marcus Pfister ,  Rudolf Sollacher ,  Volker Tresp

    IPC分类号： H05G1/42

    CPC分类号： A61B6/481 ,  A61B6/4035 ,  A61B6/504 ,  A61B6/542 ,  A61B6/544 ,  A61B6/583 ,  A61B6/588

    摘要： A method and a suitable x-ray device (1) for carrying out the method are specified for effective and operationally simplified user-specific optimization of a parameter configuration (K) of an x-ray device (1), said configuration comprising at least one recording parameter (U,I,t,F). It is accordingly provided that a user (20) is shown a plurality of reference images (V, V1) for different reference parameter sets (PV) from a reference memory (21) in which are stored a large number of reference images (V, V0) each with an associated reference parameter set (PV), that for each reference image (V, V1) shown the user (20) submits an assessment (BM) of the image quality (V, V1), and that on the basis of the submitted assessments (BM) an optimized parameter configuration (K) is created from the reference parameter sets (PV) of the reference images (V, V1) shown.

    摘要翻译： 指定用于执行该方法的方法和合适的x射线装置（1），用于有效和操作地简化X射线装置（1）的参数配置（K）的用户特定优化，所述配置至少包括 一个记录参数（U，I，t，F）。 因此，用户（20）从参考存储器（21）中显示用于不同参考参数组（PV）的多个参考图像（V，V 1），其中存储了大量参考图像（V ，V 0），每个具有相关联的参考参数集（PV），对于所示的每个参考图像（V，V 1），用户（20）提交图像质量（V，V 1）的评估（BM），以及 根据所提交的评估（BM），根据所示的参考图像（V，V 1）的参考参数组（PV）创建优化参数配置（K）。

    Method and device for user-specific parameterization of an x-ray device
    2.
    发明授权
    Method and device for user-specific parameterization of an x-ray device 有权
    用于X射线设备的用户特定参数化的方法和设备

    公开(公告)号：US07298823B2

    公开(公告)日：2007-11-20

    申请号：US11170661

    申请日：2005-06-29

    申请人： Philipp Bernhardt ,  Marcus Pfister ,  Rudolf Sollacher ,  Volker Tresp

    发明人： Philipp Bernhardt ,  Marcus Pfister ,  Rudolf Sollacher ,  Volker Tresp

    IPC分类号： H05G1/30

    CPC分类号： A61B6/481 ,  A61B6/4035 ,  A61B6/504 ,  A61B6/542 ,  A61B6/544 ,  A61B6/583 ,  A61B6/588

    摘要： A method and a suitable x-ray device (1) for carrying out the method are specified for effective and operationally simplified user-specific optimization of a parameter configuration (K) of an x-ray device (1), said configuration comprising at least one recording parameter (U,I,t,F). It is accordingly provided that a user (20) is shown a plurality of reference images (V,V1) for different reference parameter sets (PV) from a reference memory (21) in which are stored a large number of reference images (V,V0) each with an associated reference parameter set (PV), that for each reference image (V,V1) shown the user (20) submits an assessment (BM) of the image quality (V,V1), and that on the basis of the submitted assessments (BM) an optimized parameter configuration (K) is created from the reference parameter sets (PV) of the reference images (V,V1) shown.

    摘要翻译： 指定用于执行该方法的方法和合适的x射线装置（1），用于有效和操作地简化X射线装置（1）的参数配置（K）的用户特定优化，所述配置至少包括 一个记录参数（U，I，t，F）。 因此，用户（20）从参考存储器（21）中显示用于不同参考参数组（PV）的多个参考图像（V，V 1），其中存储了大量参考图像（V ，V 0），每个具有相关联的参考参数集（PV），对于所示的每个参考图像（V，V 1），用户（20）提交图像质量（V，V 1）的评估（BM），以及 根据所提交的评估（BM），根据所示的参考图像（V，V 1）的参考参数组（PV）创建优化参数配置（K）。

    Method for presetting the imaging parameters during the generation of two-dimensional fluoroscopic x-ray images
    7.
    发明申请
    Method for presetting the imaging parameters during the generation of two-dimensional fluoroscopic x-ray images 审中-公开
    在产生二维荧光X射线图像期间预设成像参数的方法

    公开(公告)号：US20060251213A1

    公开(公告)日：2006-11-09

    申请号：US11429139

    申请日：2006-05-05

    申请人： Philipp Bernhardt ,  Marcus Pfister

    发明人： Philipp Bernhardt ,  Marcus Pfister

    IPC分类号： G01N23/04

    CPC分类号： A61B6/00 ,  A61B6/504 ,  A61B6/545 ,  G06T2207/30101

    摘要： The invention relates to a method for presetting the imaging parameters during the generation of two-dimensional fluoroscopic x-ray images of a patient, wherein the optimally necessary dose for the fluoroscopic x-ray image is determined with the aid of a 3D representation, already present from prior examinations, of the internal structure of the patient and the intended imaging direction and this dose is used for the exposure of the fluoroscopic image.

    摘要翻译： 本发明涉及一种用于在产生患者的二维透视X射线图像的过程中预设成像参数的方法，其中已经通过3D表示来确定荧光镜X射线图像的最佳必需剂量 从先前的检查出现患者的内部结构和预期的成像方向，并且该剂量用于透视图像的曝光。

    System and method for selecting a guidance mode for performing a percutaneous procedure
    8.
    发明授权
    System and method for selecting a guidance mode for performing a percutaneous procedure 有权
    用于选择执行经皮程序的引导模式的系统和方法

    公开(公告)号：US08165660B2

    公开(公告)日：2012-04-24

    申请号：US12431518

    申请日：2009-04-28

    申请人： Marcus Pfister ,  Norbert Strobel

    发明人： Marcus Pfister ,  Norbert Strobel

    IPC分类号： A61B6/00 ,  A61B19/00 ,  G03B42/02

    CPC分类号： A61B6/12 ,  A61B6/4441 ,  A61B6/5229 ,  A61B90/11 ,  A61B90/13 ,  A61B2034/107 ,  A61B2090/364 ,  A61B2090/376 ,  A61N2005/1061 ,  G06F19/00

    摘要： A system for planning a percutaneous procedure provides a patient 3-dimensional image data set within which an instrument trajectory is defined, for example, by selecting a skin entry point and a target point. A line, or “planned path,” is generated between the points. The system determines whether the path can be targeted so an optical axis of a movable arm coincides with the path so that a laser can be used for instrument guidance or whether a planned path can be targeted so that a C-arm can be made to coincide with the path so that the extension of the path is projected onto a radiation detector, using x-ray radiation. If neither laser guidance or x-ray guidance can be used, the path is replanned.

    摘要翻译： 用于规划经皮程序的系统提供例如通过选择皮肤入口点和目标点来定义仪器轨迹的患者3维图像数据集。 点之间产生一行或“计划路径”。 该系统确定路径是否可以被定向，使得可移动臂的光轴与路径重合，使得激光可以用于仪器引导，或者是否可以定向计划路径，使得C臂可以重合 具有路径，使得路径的延伸被投射到使用x射线辐射的辐射检测器上。 如果不能使用激光引导或X射线引导，则路径被重新设置。

    REGISTRATION OF AORTA TO PATIENT VIA TWO 2D IMAGES FOR PLACEMENT OF A STENT
    9.
    发明申请
    REGISTRATION OF AORTA TO PATIENT VIA TWO 2D IMAGES FOR PLACEMENT OF A STENT 审中-公开
    通过用于放置一个STENT的两个2D图像将AORTA注册给患者

    公开(公告)号：US20120022366A1

    公开(公告)日：2012-01-26

    申请号：US12840649

    申请日：2010-07-21

    申请人： Marcus Pfister

    发明人： Marcus Pfister

    IPC分类号： A61B5/05

    CPC分类号： A61B6/032 ,  A61B6/12 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5235 ,  G06T7/33 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2207/20221 ,  G06T2207/30101

    摘要： In a method for visualizing placement of a stent in an aorta of a patient with reduced use of contrast agent, a 3D volume image of the aorta of the patient is provided from a CT scan before placing the stent. An angiography system with a C-arm is provided to take 2D images of the patient. A computer is provided having registration software for registering the 3D volume image and 2D images taken by the angiography system. A first segmentation is performed on the 3D volume image to segment the aorta from remaining parts of the 3D image. A second segmentation is performed using the first segmentation on the 3D volume image to segment a bony structure of the patient from remaining parts of the 3D volume image. A first 2D image of the aorta is obtained from a first direction with use of a contrast agent. A second 2D image is obtained from a second direction but without use of contrast agent. The segmented aorta in the 3D volume image is registered to the C-arm to create a registered 3D volume image by registering the first 2D image to the segmented aorta and registering the second 2D image to the segmented bony structure. The stent is placed in the aorta while observing on the angiography system a third continuous 2D image taken by the angiography system superimposed on the registered 3D volume image.

    摘要翻译： 在使用造影剂的患者的主动脉中放置支架的可视化方法中，在放置支架之前，从CT扫描提供患者主动脉的3D体积图像。 提供具有C臂的血管造影系统以获取患者的2D图像。 提供具有注册软件的计算机，用于注册3D体积图像和由血管造影系统拍摄的2D图像。 在3D体积图像上执行第一分割，以从3D图像的其余部分分割主动脉。 使用3D体积图像上的第一分割来执行第二分割，以从3D体积图像的剩余部分分割患者的骨骼结构。 使用造影剂从第一方向获得主动脉的第一2D图像。 从第二方向获得第二2D图像，但不使用造影剂。 3D体积图像中的分割主动脉通过将第一2D图像注册到分割的主动脉并将第二2D图像注册到分段骨结构来登记到C臂以创建注册的3D体积图像。 将支架放置在主动脉中，同时在血管造影系统上观察血管造影系统拍摄的第三连续2D图像，该图像叠加在注册的3D体积图像上。

    Analytical method for a number of two-dimensional projection images of a three-dimensional examination object
    10.
    发明授权
    Analytical method for a number of two-dimensional projection images of a three-dimensional examination object 有权
    用于三维检查对象的多个二维投影图像的分析方法

    公开(公告)号：US08036453B2

    公开(公告)日：2011-10-11

    申请号：US11986857

    申请日：2007-11-27

    申请人： Wolfgang Härer ,  Marcus Pfister

    发明人： Wolfgang Härer ,  Marcus Pfister

    IPC分类号： G06K9/00

    CPC分类号： G06T11/006

    摘要： A number of two-dimensional projection images of a three-dimensional examination object are assigned image times and imaging parameters. The projection images are combined into reconstruction groups including projection images with image times specifically assigned or within a time interval specific to the reconstruction groups. The reconstruction groups are determined in such a way that three-dimensional reconstructions of the examination object with direction-dependent local resolution can be determined based on the projection images of the reconstruction groups; it is not possible to determine three-dimensional reconstructions of the examination object with direction-independent local resolution. Three-dimensional reconstructions of the examination are determined based on the projection images of the reconstruction groups. Reconstruction times are determined based on the image times assigned to the projection images of the reconstruction groups and assigned to the three-dimensional reconstructions. Further analyses are performed as a function of the temporal sequence of the three-dimensional reconstructions.

    摘要翻译： 将三维检查对象的多个二维投影图像分配给图像时间和成像参数。 将投影图像组合成重建组，包括具有特定分配的图像时间的投影图像或者在重建组特有的时间间隔内。 确定重建组，使得可以基于重建组的投影图像来确定具有方向依赖性局部分辨率的检查对象的三维重建; 不可能用方向独立的局部分辨率来确定检查对象的三维重建。 根据重建组的投影图像确定检查的三维重建。 基于分配给重建组的投影图像的图像时间并分配给三维重建来确定重建时间。 作为三维重建的时间序列的函数进行进一步的分析。