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    Method for identifying and locating markers in a 3D volume data set
    1.
    发明授权
    Method for identifying and locating markers in a 3D volume data set 有权
    用于识别和定位3D体积数据集中的标记的方法

    公开(公告)号：US06359960B1

    公开(公告)日：2002-03-19

    申请号：US09630968

    申请日：2000-08-02

    Applicant: Eric Wahl ,  Uwe Weber ,  Norbert Rahn ,  Rainer Graumann

    Inventor： Eric Wahl ,  Uwe Weber ,  Norbert Rahn ,  Rainer Graumann

    IPC: A61B603

    CPC classification number: G06T7/66 ,  A61B6/12 ,  G06T7/70 ,  G06T2207/30016

    Abstract: In a method for automatically determining coordinates, relative to a reference coordinate system, of markers contained in a 3D volume data set of a subject provided with markers imaged in 2D projections of the 3D volume data set are detected, the centers of gravity of the imaged markers are determined, and back projection straight lines through the markers are established. The intersection points of the back projection straight lines with each other are identified, or the points with the smallest distance from one another on different back projection straight lines are determined if the back projection lines arc skewed. Spatially limited areas are identified, which contain an accumulation of intersection points of back projection straight lines or an accumulation of points with the smallest distance from one another. The coordinates of the centers of gravity of these spatially limited areas are calculated and are used as the coordinates for the respective markers.

    Abstract translation: 在用于自动确定相对于参考坐标系的坐标的方法中，检测包含在设置有3D体积数据集的2D投影中的标记的受试者的3D体积数据集中的标记的坐标，所成像的重心 确定标记，建立通过标记的背投直线。 识别背投直线的交点，或者如果背投影线歪斜，则确定在不同背投直线上彼此之间具有最小距离的点。 识别空间有限的区域，其包含背投影直线的交叉点的累积或彼此具有最小距离的点的累积。 计算这些空间受限区域的重心的坐标，并将其用作相应标记的坐标。

    Method and system for visualizing an object
    5.
    发明授权
    Method and system for visualizing an object 失效
    可视化对象的方法和系统

    公开(公告)号：US06628977B2

    公开(公告)日：2003-09-30

    申请号：US09748320

    申请日：2000-12-22

    Applicant: Rainer Graumann ,  Norbert Rahn ,  Siegfried Wach

    Inventor： Rainer Graumann ,  Norbert Rahn ,  Siegfried Wach

    IPC: A61B505

    CPC classification number: A61B6/5235 ,  A61B6/12 ,  A61B6/4405 ,  A61B6/4441 ,  A61B6/5247 ,  A61B8/0833 ,  A61B8/4254 ,  A61B8/5238 ,  A61B34/20 ,  A61B2034/107 ,  A61B2034/2051 ,  A61B2090/365 ,  A61B2090/376 ,  A61B2090/378 ,  G06F19/00

    Abstract: In a method and a system for visualizing the position and orientation of an object that is penetrating, or that has penetrated, into a subject, a first set of image data are produced from the interior of the subject before the object has penetrated into the subject, a second set of image data are produced from the interior of the subject during or after the penetration of the object into the subject, the sets of image data are connected and are superimposed to form a fused set of image data, and an image obtained from the fused set of image data is displayed. The system has an x-ray computed tomography apparatus, and an x-ray apparatus, and/or an ultrasound apparatus for producing the first and second sets of data, respectively.

    Abstract translation: 在用于可视化穿透或已渗透到被摄体中的物体的位置和取向的方法和系统中，在物体已经穿透到被摄物体之前，从被摄物体的内部产生第一组图像数据 ，在物体穿入被摄体期间或之后，从对象的内部产生第二组图像数据，连接并叠加图像数据组以形成一组融合的图像数据，并且获得图像 从融合的图像数据集中显示。 该系统具有分别用于产生第一组数据和第二组数据的X射线计算机断层摄影装置和X射线装置和/或超声波装置。

    Method and device for catheter navigation in three-dimensional vascular tree exposures
    6.
    发明授权
    Method and device for catheter navigation in three-dimensional vascular tree exposures 有权
    导管导航在三维血管树暴露中的方法和装置

    公开(公告)号：US06317621B1

    公开(公告)日：2001-11-13

    申请号：US09559044

    申请日：2000-04-27

    Applicant: Rainer Graumann ,  Norbert Rahn

    Inventor： Rainer Graumann ,  Norbert Rahn

    IPC: A61B500

    CPC classification number: A61B6/12 ,  A61B6/481 ,  A61B6/501 ,  A61B6/504 ,  A61B6/506 ,  A61M25/0108

    Abstract: In a method and apparatus for catheter navigation in three-dimensional vascular tree exposures, particularly for intercranial application, the catheter position is detected and mixed into the 3D image of the pre-operatively scanned vascular tree reconstructed in a navigation computer and an imaging (registering) of the 3D patient coordination system ensues on the 3D image coordination system prior to the intervention using a number of markers placed on the patient's body, the position of these markers being registered by the catheter. The markers of a C-arm x-ray device for 3D angiography are detected in at least two 2D projection images, from which the 3D angiogram is calculated, and are projected back on to the imaged subject in the navigation computer and are brought into relation to the marker coordinates in the patient coordinate system, using projection matrices applied to the respective 2D projection images, these matrices already having been determined for the reconstruction of the 3D volume set of the vascular tree.

    Abstract translation: 在用于三维血管树暴露中的导管导航的方法和装置中，特别是对于颅内应用，导管位置被检测并混合到在导航计算机中重建的手术前扫描的血管树的3D图像和成像（登记 ）的3D患者协调系统在使用放置在患者身体上的多个标记的干预之前在3D图像协调系统上进行，这些标记的位置由导管记录。 在至少两个2D投影图像中检测用于3D血管造影的C形臂X射线装置的标记，从该3D图像计算3D血管造影图，并且将其投射回导航计算机中的被摄体，并被关联 使用应用于各个2D投影图像的投影矩阵来确定患者坐标系中的标记坐标，这些矩阵已经被确定用于重建血管树的3D体积集。

    System and method for generating an image from an image dataset and a video image
    7.
    发明授权
    System and method for generating an image from an image dataset and a video image 有权
    用于从图像数据集和视频图像生成图像的系统和方法

    公开(公告)号：US06768496B2

    公开(公告)日：2004-07-27

    申请号：US09822616

    申请日：2001-03-30

    Applicant: Johannes Bieger ,  Rainer Graumann ,  Norbert Rahn

    Inventor： Johannes Bieger ,  Rainer Graumann ,  Norbert Rahn

    IPC: G09G512

    CPC classification number: H04N5/265 ,  A61B1/0005 ,  A61B5/055 ,  A61B5/065 ,  A61B5/7425 ,  A61B6/03 ,  A61B6/4441 ,  A61B6/5247 ,  A61B8/0833 ,  A61B8/13 ,  A61B8/4254 ,  A61B8/463 ,  A61B8/5238 ,  A61B90/36 ,  G06F19/00 ,  G06F19/321 ,  H04N2005/2255

    Abstract: In a system and a method for generating an image that contains superimposed or fused image data, a first system acquires an image dataset from a subject and a second system obtains a video image of the subject. The positions of the first, the second systems in the acquisition of the image datasets are determined with the an arrangement for position determination, such as a navigation system, with reference to which the position of the image dataset acquired with the first system and the position of the video image dataset can be determined in space, so that the two image datasets can be superimposed or fused with one another. An arrangement also can be provided for generating a video image expanded with image data of the image dataset acquired with the first system.

    Abstract translation: 在用于生成包含叠加或融合图像数据的图像的系统和方法中，第一系统从对象获取图像数据集，并且第二系统获得对象的视频图像。 第一系统，第二系统在获取图像数据集中的位置由用于位置确定的布置（诸如导航系统）确定，参考该位置确定用第一系统获取的图像数据集的位置和位置 可以在空间中确定视频图像数据集，使得两个图像数据集可以彼此叠加或融合。 还可以提供一种布置，用于生成用第一系统获取的图像数据集的图像数据扩展的视频图像。

    Method for determining a target position for a medical procedure
    9.
    发明授权
    Method for determining a target position for a medical procedure 有权

    公开(公告)号：US10368946B2

    公开(公告)日：2019-08-06

    申请号：US14112951

    申请日：2012-04-13

    Applicant: Rainer Graumann ,  Gerhard Kleinszig ,  Martin Ringholz

    Inventor： Rainer Graumann ,  Gerhard Kleinszig ,  Martin Ringholz

    IPC: A61B6/00 ,  A61B34/10 ,  A61B6/03 ,  A61B6/12 ,  A61B34/20 ,  A61B90/00

    Abstract: A method for determining the location, in a coordinate system, of a target position for an invasive medical procedure on a patient. An entry mark that defines the coordinate system and indicates an entry position for the procedure is affixed to the patient. A site marker, which can be identified in a radioscopy image, is fixed in a known relative location in the coordinate system. At least two 2D radioscopy images of the patient, which both depict the respective site marker and the target position, are recorded from different recording directions. The location of the target position in the coordinate system is determined from the representation of the target position and from the representation of the site marker in the 2D radioscopy images and from the relative location of the site marker in the coordinate system.

    Method for determining a layer orientation for a 2D layer image
    10.
    发明授权
    Method for determining a layer orientation for a 2D layer image 有权
    确定二维图像图层的方向的方法

    公开(公告)号：US08744150B2

    公开(公告)日：2014-06-03

    申请号：US13450701

    申请日：2012-04-19

    Applicant: Rainer Graumann

    Inventor： Rainer Graumann

    IPC: G06K9/00

    CPC classification number: A61B6/505 ,  A61B6/032 ,  A61B6/5223 ,  A61B6/5229

    Abstract: A layer orientation is determined for a 2D layer image that is to be generated from 3D image data of an anatomical object in the body of a patient. First, a model resembling the object that is imaged in the 3D image data is selected from a model pool. The model has an assigned default orientation in a permanently selected relative position with respect to the model. While the relative position is being maintained, the model is aligned with the 3D image data so as to match the model to the object with maximum coincidence. The default orientation established relative to the 3D image data is then selected as the layer orientation for the 3D image data.

    Abstract translation: 对于将从患者体内的解剖学对象的3D图像数据生成的2D图像图像来确定层取向。 首先，从模型池中选择类似于在3D图像数据中成像的对象的模型。 模型在相对于模型的永久选择的相对位置中具有分配的默认方向。 在保持相对位置的同时，模型与三维图像数据对齐，以便将模型与对象以最大的一致性进行匹配。 然后选择相对于3D图像数据建立的默认方向作为3D图像数据的层方向。

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