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1. 发明授权

US07340033B2 X-ray unit having an automatically adjustable collimator 有权
标题翻译： X射线单元具有自动调节的准直仪
公开(公告)号：US07340033B2
公开(公告)日：2008-03-04
申请号：US10566665
申请日：2004-07-19
申请人： Sabine Mollus , Jürgen Weese , Henning Braess
发明人： Sabine Mollus , Jürgen Weese , Henning Braess
IPC分类号： G01N23/04
CPC分类号： A61B6/469 , A61B6/06 , G21K1/02
摘要： The invention relates to a method and a unit for automatically adjusting a collimator (6). In this connection, a region (9) of interest inside the body is determined in an application-specific way from an analysis of first X-ray pictures, and the collimator (6) is then adjusted thereon. The region (9) of interest can, in particular, be chosen to be large enough for the irradiation field to cover all those positions of an organ (10) of interest that occur as a result of heartbeat and/or respiration. Preferably, a movement estimate' is undertaken during a current examination in order to be able to readjust the collimator (6) if necessary. If the region of interest cannot be localized, the collimator (6) is opened to a standard adjustment.
摘要翻译：本发明涉及一种用于自动调整准直器（6）的方法和单元。在这方面，通过分析第一X射线照片，以应用特定的方式确定身体内的感兴趣区域（9），然后在其上调整准直器（6）。特别地，感兴趣的区域（9）可以被选择为足够大以使照射场覆盖作为心跳和/或呼吸的结果而发生的感兴趣的器官（10）的所有位置。优选地，在当前检查期间进行运动估计，以便能够在必要时重新调整准直器（6）。如果感兴趣的区域不能被定位，则将准直器（6）打开以进行标准调节。

2. 发明申请

US20060203966A1 X-ray unit having an automatically adjustable collimator 有权
标题翻译： X射线单元具有自动调节的准直仪
公开(公告)号：US20060203966A1
公开(公告)日：2006-09-14
申请号：US10566665
申请日：2004-07-19
申请人： Sabine Mollus , Jürgen Weese , Henning Braess
发明人： Sabine Mollus , Jürgen Weese , Henning Braess
IPC分类号： G21K1/04
CPC分类号： A61B6/469 , A61B6/06 , G21K1/02
摘要： The invention relates to a method and a unit for automatically adjusting a collimator (6). In this connection, a region (9) of interest inside the body is determined in an application-specific way from an analysis of first X-ray pictures, and the collimator (6) is then adjusted thereon. The region (9) of interest can, in particular, be chosen to be large enough for the irradiation field to cover all those positions of an organ (10) of interest that occur as a result of heartbeat and/or respiration. Preferably, a movement estimate' is undertaken during a current examination in order to be able to readjust the collimator (6) if necessary. If the region of interest cannot be localized, the collimator (6) is opened to a standard adjustment.
摘要翻译：本发明涉及一种用于自动调整准直器（6）的方法和单元。在这方面，通过分析第一X射线照片，以应用特定的方式确定身体内的感兴趣区域（9），然后在其上调整准直器（6）。特别地，感兴趣的区域（9）可以被选择为足够大以使照射场覆盖作为心跳和/或呼吸的结果而发生的感兴趣的器官（10）的所有位置。优选地，在当前检查期间进行运动估计，以便能够在必要时重新调整准直器（6）。如果感兴趣的区域不能被定位，则将准直器（6）打开以进行标准调节。

3. 发明授权

US07519155B2 Device and method for adjusting imaging parameters of an X-ray apparatus 有权
标题翻译：用于调整X射线装置的成像参数的装置和方法
公开(公告)号：US07519155B2
公开(公告)日：2009-04-14
申请号：US10577098
申请日：2004-10-15
申请人： Sabine Mollus , Jürgen Weese
发明人： Sabine Mollus , Jürgen Weese
IPC分类号： H05G1/44 , G21K1/12
CPC分类号： A61B6/488 , A61B6/00 , A61B6/469 , A61B6/542 , A61B6/544
摘要： The invention relates to a device for adjusting imaging parameters of an X-ray apparatus (1), whereby a user pre-defines on a preliminary image an image region of interest (ROI) and a value of the contrast-to-noise ratio (CNRref) desired for this image region. Based on the current contrast-to-noise ratio (CNRm), new imaging parameters (I, V, L, f, Q0) are then calculated for a generator-control module (7) to control the X-ray apparatus (1) during an image. By means of the method, the X-ray dose may be reduced to a minimum, while at the same time the desired visibility of a region of interest is ensured.
摘要翻译：本发明涉及一种用于调整X射线设备（1）的成像参数的设备，由此用户在初步图像上预先定义感兴趣的图像区域（ROI）和对比度噪声比值（ CNRref）对于该图像区域是期望的。基于目前的对比噪声比（CNRm），然后为发电机控制模块（7）计算新的成像参数（I，V，L，f，Q0）以控制X射线装置（1）在图像期间。通过该方法，可以将X射线剂量降低到最小，同时确保感兴趣区域的期望的可见度。

4. 发明授权

US08050469B2 Automated measurement of objects using deformable models 有权
标题翻译：使用可变形模型自动测量物体
公开(公告)号：US08050469B2
公开(公告)日：2011-11-01
申请号：US10521254
申请日：2003-07-11
申请人： Michael Kaus , Jürgen Weese , Steven Lobregt
发明人： Michael Kaus , Jürgen Weese , Steven Lobregt
IPC分类号： G06K9/00
CPC分类号： G06T7/60 , Y10S128/922
摘要： The present invention relates to the field of digital imaging, in particular to the field of estimating geometrical properties of an anatomical object. According to the present invention, geometrical properties are automatically measured and geometrical properties which have a definition based on sub-parts of the object are derived. To do this, additional geometrical information is integrated into a surface model. Geometrical properties are included into the surface model by identifying and labelling sub-parts of the surface model and fitting geometric primitives to these sub-parts. This advantageously allows to identify these sub-parts on an unseen object surface and to automatically extract relevant geometric properties.
摘要翻译：本发明涉及数字成像领域，特别涉及估计解剖学对象的几何性质的领域。根据本发明，自动地测量几何特性，并导出具有基于对象的子部分的定义的几何属性。为此，额外的几何信息被集成到表面模型中。通过识别和标记表面模型的子部分并将这些子部分拟合几何图元，将几何属性包含在表面模型中。这有利地允许在未看见的物体表面上识别这些子部件并且自动提取相关的几何特性。

5. 发明授权

US06471399B1 X-ray examination device and method for producing undistorted X-ray images 失效
标题翻译： X射线检查装置以及用于产生未失真X射线图像的方法
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。

6. 发明授权

US06542770B2 Method of determining the position of a medical instrument 失效
标题翻译：确定医疗器械位置的方法
公开(公告)号：US06542770B2
公开(公告)日：2003-04-01
申请号：US09773421
申请日：2001-02-01
申请人： Waldemar Zylka , Jörg Sabczynski , Jürgen Weese
发明人： Waldemar Zylka , Jörg Sabczynski , Jürgen Weese
IPC分类号： A61B505
CPC分类号： A61B6/463 , A61B6/12 , A61B6/4441 , A61B6/547 , A61B34/20 , A61B2090/364 , A61B2090/374 , A61B2090/3764 , A61B2090/3945 , A61B2090/3979
摘要： Method and device for determining the position of a medical instrument, partially introduced into an object being examined, in a three-dimensional image data set of the object. In order to achieve a high accuracy of the position determination and minimize the expenditure required and thus save intricate registration steps prior to an intervention, simultaneously with the acquisition of an X-ray image, the spatial positions of the X-ray image and the spatial position of a medical instrument are acquired. Then, the spatial correlation between an X-ray image and a three-dimensional image data set is determined. This correlation is used to transform the spatial position of the medical instrument into a position relative to the three-dimensional image data set. This enables the formation of images containing image information acquired pre-operatively as well as intra-operatively, and also the reproduction of the instantaneous position of the medical instrument in the images.
摘要翻译：用于确定被检测物体中部分地被引入到被检查物体中的位置的方法和装置，在该物体的三维图像数据集中。为了实现位置确定的高精度并且最小化所需的支出，并且因此在干预之前保存错综复杂的登记步骤，与X射线图像的获取同时，X射线图像的空间位置和空间获得医疗器械的位置。然后，确定X射线图像和三维图像数据集之间的空间相关性。该相关性用于将医疗器械的空间位置变换为相对于三维图像数据集的位置。这使得能够形成包含在手术前和手术中获取的图像信息的图像，以及医学仪器在图像中的瞬时位置的再现。

7. 发明授权

US06379043B1 X-ray examination apparatus and method for generating distortion-free X-ray images 失效
标题翻译：用于产生无畸变X射线图像的X射线检查装置和方法
公开(公告)号：US06379043B1
公开(公告)日：2002-04-30
申请号：US09601825
申请日：2000-08-08
申请人： Waldermar Zylka , Jörg Sabczynski , Jürgen Weese
发明人： Waldermar Zylka , Jörg Sabczynski , Jürgen Weese
IPC分类号： G01D1800
CPC分类号： A61B6/583 , A61B6/4225 , A61B6/4441 , A61B6/547 , G01N23/04
摘要： The invention relates to an X-ray examination apparatus for and a method of forming distortion-free X-ray images, which apparatus and method enable the imaging properties of the C-arm X-ray system to be derived from the patient image. To this end, a reference image (FIG. 4) is formed in a reference orientation of the X-ray examination apparatus and the reference imaging properties of the C-arm X-ray system are determined on the basis of the positions of calibration members (7, 8), which are mounted on the image intensifier (2) and/or the X-ray source (3) and are reproduced, and the known geometry and position relative to the image intensifier (2) and/or the X-ray source (3); the positions of the calibration members (7, 8) reproduced in a patient X-ray image (FIG. 5) are compared with the positions of the calibration members (7, 8) in the reference image (FIG. 4) and distortions occurring in the patient X-ray image are corrected on the basis of differences between the reproduced positions of the calibration members (7, 8) in the patient X-ray image (FIG. 5) and in the reference image (FIG. 4).
摘要翻译：本发明涉及一种用于形成无畸变X射线图像的X射线检查装置和方法，该装置和方法使得能够从患者图像导出C臂X射线系统的成像特性。为此，在X射线检查装置的基准方向上形成参考图像（图4），并且基于校准构件的位置确定C臂X射线系统的参考成像特性（7,8），其安装在图像增强器（2）和/或X射线源（3）上并被再现，并且相对于图像增强器（2）和/或X的已知几何形状和位置射源（3）; 将在患者X射线图像（图5）中再现的校准构件（7,8）的位置与参考图像（图4）中的校准构件（7,8）的位置进行比较，并发生变形基于患者X射线图像（图5）和参考图像（图4）中的校准构件（7,8）的再现位置之间的差异来校正患者X射线图像。

8. 发明授权

US07421122B2 Simultaneous segmentation of multiple or composed objects by mesh adaptation 有权
标题翻译：通过网格匹配同时分割多个或组合对象
公开(公告)号：US07421122B2
公开(公告)日：2008-09-02
申请号：US10521182
申请日：2003-07-15
申请人： Michael Kaus , Jürgen Weese
发明人： Michael Kaus , Jürgen Weese
IPC分类号： G06K9/34 , G06K9/00 , G06K9/46 , G06F17/00
CPC分类号： G06T7/149 , G06T7/12 , G06T2200/04 , G06T2207/10072 , G06T2207/30008 , G06T2207/30048
摘要： Deformable models are used for the segmentation of structures in 3D images. The basic principle of such methods consists of the adaptation of flexible meshes to the image. However, the simultaneous segmentation of multiple or composed objects often causes problems in that spatial relationships between the objects are violated, or that meshes are intersecting each other. According to the present invention, a priori knowledge about spatial relationships between objects is introduced into the shaped model. This allows to maintain spatial relationships between the objects and to avoid intersecting meshes.
摘要翻译：可变形模型用于3D图像中的结构分割。这种方法的基本原理包括将柔性网格适应图像。然而，多个或组合对象的同时分割通常导致在对象之间的空间关系被违反或者网格彼此相交的问题。根据本发明，将关于物体之间的空间关系的先验知识引入成形模型。这允许保持对象之间的空间关系并避免相交的网格。

9. 发明申请

US20060198499A1 Device and method for adapting the recording parameters of a radiograph 审中-公开
标题翻译：适应射线照相记录参数的装置和方法
公开(公告)号：US20060198499A1
公开(公告)日：2006-09-07
申请号：US10548983
申请日：2004-02-27
申请人： Lothar Spies , Henrik Botterweck , Jürgen Weese
发明人： Lothar Spies , Henrik Botterweck , Jürgen Weese
IPC分类号： G01D18/00
CPC分类号： A61B6/488 , A61B6/00 , A61B6/469 , A61B6/542 , A61B6/544
摘要： The invention relates to a method of adapting imaging parameters for a computer tomographic radiograph of a body volume, comprising the following steps: obtaining a three-dimensional pilot radiograph with a low dose of radiation (1); determining a region of interest and a desired image quality in the pilot radiograph (2) with the aid of a patient model (4) or interactively (3); determining optimal imaging parameters (5); generating an X-ray image using the determined imaging parameters (6). Optionally, the X-ray image is combined (7) with the pilot radiograph.
摘要翻译：本发明涉及一种使身体体积的计算机断层摄影X射线摄影的成像参数适应的方法，包括以下步骤：获得具有低剂量辐射的三维导管射线照片（1）; 借助于患者模型（4）或交互地（3），在导频X射线照片（2）中确定感兴趣的区域和期望的图像质量; 确定最佳成像参数（5）; 使用所确定的成像参数（6）生成X射线图像。可选地，将X射线图像与导频X射线照片组合（7）。

10. 发明授权

US06205350B1 Medical diagnostic method for the two-dimensional imaging of structures 有权
标题翻译：结构二维成像的医学诊断方法
公开(公告)号：US06205350B1
公开(公告)日：2001-03-20
申请号：US09251681
申请日：1999-02-17
申请人： Christian Lorenz , Jürgen Weese
发明人： Christian Lorenz , Jürgen Weese
IPC分类号： A61B505
CPC分类号： G06T7/0012 , G06T5/20 , G06T7/12 , G06T2207/10081 , G06T2207/30101
摘要： The invention relates to a medical diagnostic method in which a two-dimensional image can be derived from a data set representing a three-dimensional examination zone while especially emphasizing given structures. The data set is subjected to a filtering operation and from the voxels which are projected onto the same pixel in the two-dimensional image a voxel is selected in dependence on its image value in the second data set. This voxel is reproduced with its original image value in the two-dimensional image.
摘要翻译：本发明涉及一种医疗诊断方法，其中可以从表示三维检查区的数据集导出二维图像，同时特别强调给定的结构。对数据集进行滤波操作，并且从投影到二维图像中的相同像素上的体素依赖于第二数据集中的图像值来选择体素。该体素以其原始图像值在二维图像中再现。

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