公开(公告)号：US08233691B2

公开(公告)日：2012-07-31

申请号：US12438952

申请日：2007-08-27

申请人： Hans Barschdorf ,  Jens Von Berg ,  Michael Harald Kuhn ,  Cristian Lorenz ,  Thomas Blaffert

发明人： Hans Barschdorf ,  Jens Von Berg ,  Michael Harald Kuhn ,  Cristian Lorenz ,  Thomas Blaffert

IPC分类号： G06K9/00

CPC分类号： G06T7/251 ,  G06T7/149 ,  G06T7/33 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2207/30061 ,  G06T2211/412

摘要： The invention relates to a system for adapting a plurality of model meshes to a plurality of image data. The system has a registration unit for registering the plurality of model meshes with the plurality of image data on the basis of a computation of a registration transformation for transforming the plurality of model meshes, and an adaptation unit for adapting the plurality of registered model meshes to the plurality of image data on the basis of a computation of locations of mesh vertices of the plurality of model meshes. The described system is capable of reducing motion artifacts in tomographic images computed from data acquired at a plurality of different cardiac cycle phases.

摘要翻译： 本发明涉及一种用于将多个模型网格适配成多个图像数据的系统。 该系统具有注册单元，用于基于用于变换多个模型网格的注册变换的计算，将多个模型网格注册到多个图像数据;以及适配单元，用于将多个注册模型网格适配到 基于多个模型网格的网格顶点的位置的计算来生成多个图像数据。 所描述的系统能够减少从在多个不同的心动周期阶段获取的数据计算的断层图像中的运动伪像。

公开(公告)号：US20110243412A1

公开(公告)日：2011-10-06

申请号：US12599044

申请日：2008-05-05

申请人： Michael Grass ,  Jens Von Berg

发明人： Michael Grass ,  Jens Von Berg

IPC分类号： G06K9/00

CPC分类号： A61B6/504 ,  A61B6/481 ,  A61B6/503

摘要： It is described a method for coronary artery selective calcium assignment by computed tomography, wherein the method comprising the steps of performing a low x-ray dose cardiac calcium scoring scan, obtaining a data set of said cardiac calcium scoring scan, generating reconstructed images from the data set of said cardiac calcium scoring scan, analyzing the reconstructed images for segmented calcium deposits, deriving a data set of calcification from the analysis, wherein a cardiac model is adapted to the reconstructed image such that segmented calcium deposits can be assigned to specific areas of the heart. Further a device (100) for performing a method for coronary artery selective calcium assignment by computed tomography according to the inventive method is described, wherein the device (100) comprises a CT unit (10) for performing a low x-ray dose cardiac calcium scoring scan; an acquisition unit (20) for obtaining a data set of said cardiac calcium scoring scan; a generation unit (30) for generating reconstructed images from the data set of said cardiac calcium scoring scan; an analyzing unit (40) for analyzing the reconstructed images for segmented calcium deposits; a deriving unit (50) for deriving a data set of calcification from the analysis.

摘要翻译： 描述了通过计算机断层摄影术进行冠状动脉选择性钙分配的方法，其中所述方法包括以下步骤：执行低X射线剂量心脏钙评分扫描，获得所述心脏钙评分扫描的数据集，从 所述心脏钙评分扫描的数据集，分析分割钙沉积物的重建图像，从分析导出钙化数据集，其中心脏模型适应于重建图像，使得分割的钙沉积物可以分配给 心脏 此外，描述了根据本发明的方法通过计算机断层摄影执行冠状动脉选择性钙分配方法的装置（100），其中所述装置（100）包括用于执行低x射线剂量心脏钙的CT单元（10） 得分扫描; 获取单元（20），用于获取所述心脏钙评分扫描的数据集; 用于从所述心脏钙评分扫描的数据集中产生重建图像的生成单元（30）; 分析单元（40），用于分析用于分割的钙沉积物的重建图像; 用于从分析中导出钙化数据集的导出单元（50）。

公开(公告)号：US07957572B2

公开(公告)日：2011-06-07

申请号：US11815597

申请日：2006-02-08

申请人： Jens Von Berg ,  Cristian Lorenz

发明人： Jens Von Berg ,  Cristian Lorenz

IPC分类号： G06K9/00 ,  G06T15/00

CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2207/10072 ,  G06T2207/30048

摘要： The present invention relates to an image processing device and a corresponding image processing method for processing a multi-dimensional data set of image data, in particular of three-dimensional medical volume image data, including a segmentation unit (6, 16, 26) for a segmentation of an image object in said data set. Further, the present invention relates to a computer program for implementing said image processing method on a computer. In order to allow for a segmentation which is robust in terms of vulnerability to image artifacts and accurate in terms of reflecting anatomical details, wherein the results of the segmentation are achieved within reasonable short processing time an image processing device is proposed which comprises—model-based segmentation means (61, 161, 261) for performing a model-based segmentation (32) of said data set for obtaining a multi-dimensional model representing a first approximation of said image object; data-driven segmentation means (62, 162, 262) for performing a data-driven segmentation (33) of said multi-dimensional data set for obtaining a multi-dimensional subset of said multi-dimensional data set representing a second approximation of said image object; optimizing means (63, 163, 263) for adapting said model and/or said subset for optimizing a similarity value between said first and said second approximation; and —selecting means (64, 164, 264) for selecting said adapted model or said adapted subset as a segmentation of said image object.

摘要翻译： 本发明涉及一种用于处理图像数据的多维数据集，特别是三维医疗卷图像数据的图像处理装置和相应的图像处理方法，所述三维医疗卷图像数据包括分割单元（6,16,26），用于 所述数据集中的图像对象的分割。 此外，本发明涉及一种用于在计算机上实现所述图像处理方法的计算机程序。 为了允许在对图像伪影的脆弱性和反映解剖细节的准确性方面是鲁棒的分割，其中在合理的短处理时间内实现分割的结果，提出了一种图像处理装置，其包括模型 - （61,161,261），用于执行所述数据集的基于模型的分割（32）以获得表示所述图像对象的第一近似的多维模型; 数据驱动分段装置（62,162,262），用于执行所述多维数据集的数据驱动分段（33），以获得表示所述图像的第二近似的所述多维数据集的多维子集 目的; 用于调整所述模型和/或所述子集以优化所述第一和所述第二近似之间的相似度值的优化装置（63,163,263） 以及用于选择所述适配模型或所述适配子集作为所述图像对象的分割的选择装置（64,164,264）。

公开(公告)号：US20090267941A1

公开(公告)日：2009-10-29

申请号：US11912692

申请日：2006-04-25

申请人： Jens Von Berg ,  Cristian Lorenz

发明人： Jens Von Berg ,  Cristian Lorenz

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： Modeling of organ surfaces is a well-established method that may serve in computer-supported teaching, but also in image-based medical diagnosis and in clinical interventions. According to an exemplary embodiment of the present invention, a method of constructing a multi-surface model from a multi-dimensional dataset of an object of interest is provided, which combines single basic two-dimensional manifold surface meshes, resulting in a multi-surface model. According to an aspect of the present invention, this resulting model may be a non-two-dimensional manifold mesh.

摘要翻译： 器官表面的建模是一种既成熟的方法，可用于计算机支持的教学，也可用于基于图像的医学诊断和临床干预。 根据本发明的示例性实施例，提供了一种从感兴趣对象的多维数据集构建多表面模型的方法，其结合单个基本二维歧管表面网格，导致多表面 模型。 根据本发明的一个方面，所得到的模型可以是非二维歧管网。

公开(公告)号：US20080260205A1

公开(公告)日：2008-10-23

申请号：US11815456

申请日：2006-02-03

申请人： Jens Von Berg ,  Cristian Lorenz

发明人： Jens Von Berg ,  Cristian Lorenz

IPC分类号： G06K9/00

CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2207/10072 ,  G06T2207/30048

摘要： The present invention relates to an image processing device and a corresponding image processing method for processing medical image data showing at least two image objects, including a segmentation unit for detection and/or segmentation of image objects in said image data. To allow a more accurate and better segmentation of target objects which are hard to localize and detect, it is proposed that the segmentation unit comprises: a selection unit (61) for selecting a target object for detection and/or segmentation and an intermediary object in said image data, which is easier detectable than said target object and for which position information about the spatial relationship to said target object are known, an intermediary object segmentation unit (62) for segmentation of said intermediary object in said image data, a target object detection unit (63) for detection and/or segmentation of said target object in said image data using said segmented intermediary object and said position information about the spatial relationship of said intermediary object to said target object.

摘要翻译： 图像处理装置及图像处理方法技术领域本发明涉及图像处理装置和图像处理方法，该图像处理方法用于处理表示至少两个图像对象的医学图像数据，所述图像对象包括用于所述图像数据中的图像对象的检测和/或分割的分割单元。 为了允许对难以定位和检测的目标对象进行更准确和更好的分割，提出了分割单元包括：选择单元（61），用于选择用于检测和/或分割的目标对象和中间对象 所述图像数据比所述目标对象更容易检测，并且关于与所述目标对象的空间关系的位置信息是已知的），用于在所述图像数据中分割所述中间对象的中间对象分割单元（62），目标对象 检测单元（63），用于使用所述分割的中间对象在所述图像数据中检测和/或分割所述目标对象，以及关于所述中间对象与所述目标对象的空间关系的位置信息。

公开(公告)号：US20130311472A1

公开(公告)日：2013-11-21

申请号：US13983070

申请日：2012-01-31

申请人： Eric Cohen-Solal ,  Michael Chun-Chieh Lee ,  Julien Senegas ,  Sebastian Peter Michael Dries ,  Jens Von Berg ,  Stefanie Remmele

发明人： Eric Cohen-Solal ,  Michael Chun-Chieh Lee ,  Julien Senegas ,  Sebastian Peter Michael Dries ,  Jens Von Berg ,  Stefanie Remmele

IPC分类号： G06F17/30

CPC分类号： G06F17/30598 ,  G06F19/00 ,  G06F19/321 ,  G06F19/325 ,  G16H50/70

摘要： A method includes obtaining electronically formatted information about previously performed imaging procedures, classifying the information into groups of protocols based on initially selected protocols for the previously performed imaging procedures and generating data indicative thereof, identifying deviations between the classified information and the corresponding initially selected protocols for the previously performed imaging procedures, and generating a signal indicative of the deviations. A method includes recommending at least one of a plurality of protocols for an imaging procedure based on at least one of a score, a probability, or a pre-determined rule, which is based on extracted medical concepts from patient information and extracted medical concepts from previously imaged patient information, and generating a signal indicative of the recommendation.

摘要翻译： 一种方法包括获得关于先前执行的成像过程的电子格式化信息，基于对先前执行的成像过程的最初选择的协议将信息分类成协议组，并且生成指示其的数据，识别分类信息与相应的最初选择的协议之间的偏差 先前执行的成像过程，并且产生指示偏差的信号。 一种方法包括基于得分，概率或预定规则中的至少一个推荐用于成像过程的多个协议中的至少一个，其基于来自患者信息的提取的医学概念和来自患者信息的提取的医学概念 先前成像的患者信息，以及产生指示推荐的信号。

公开(公告)号：US20130265044A1

公开(公告)日：2013-10-10

申请号：US13993088

申请日：2011-12-07

申请人： Julien Senegas ,  Jens Von Berg ,  Eric Cohen-Solal ,  Sebastian Peter Michael Dries ,  Michael Chun-Chieh Lee ,  Tim Nielsen ,  Stefanie Remmele ,  Torbjorn Vik

发明人： Julien Senegas ,  Jens Von Berg ,  Eric Cohen-Solal ,  Sebastian Peter Michael Dries ,  Michael Chun-Chieh Lee ,  Tim Nielsen ,  Stefanie Remmele ,  Torbjorn Vik

IPC分类号： G01R33/54

CPC分类号： G01R33/543 ,  G01R33/546 ,  G06F19/00 ,  G06F19/321 ,  G06F19/325

摘要： Provided herein is a system and method for performing a magnetic resonance imaging scan using a MR scanner. The method can comprise receiving via a user interface a MR imaging protocol categorizable into a MR scan type of a predefined set of MR scan types. Further, the method can comprise querying a database by providing to the database scan information permitting the database to identify the MR scan type of the MR imaging protocol. The method can further comprise receiving from the database statistical information on the MR scan type which can include statistics on modifications of individual scan parameters of the MR scan type, and providing the statistical information to the user interface. Modifications of the MR imaging protocol can be received from the user interface, resulting in a modified MR imaging protocol, according to which the MR imaging scan can be performed.

摘要翻译： 本文提供了一种使用MR扫描仪执行磁共振成像扫描的系统和方法。 该方法可以包括经由用户界面接收可分类为MR扫描类型的MR扫描类型的MR扫描类型的MR成像协议。 此外，该方法可以包括通过向数据库提供扫描信息来查询数据库，该信息允许数据库识别MR成像协议的MR扫描类型。 该方法还可以包括从数据库接收关于MR扫描类型的统计信息，其可以包括关于MR扫描类型的各个扫描参数的修改的统计信息，以及将统计信息提供给用户界面。 可以从用户界面接收MR成像协议的修改，从而导致修改的MR成像协议，根据该MR成像协议，可以执行MR成像扫描。

公开(公告)号：US20120257810A1

公开(公告)日：2012-10-11

申请号：US13517259

申请日：2010-12-16

申请人： Jens Von Berg ,  Ulrich Neitzel

发明人： Jens Von Berg ,  Ulrich Neitzel

IPC分类号： G06K9/46

CPC分类号： G06T7/0083 ,  A61B6/5258 ,  G06T7/12 ,  G06T2207/10116 ,  G06T2207/30008

摘要： The invention relates to a system (100) for extracting an object (Ob) from a source image, said object being delineated by a contour (C), the system (100) comprising a gradient unit (110) for computing the source image gradient field, based on the source image, a smoothing unit (120) for smoothing the source image gradient field, and an integration unit (130) for calculating an object image by integrating the smoothed source image gradient field, thereby extracting the object (Ob) from the source image. At each point of the source image, the smoothing is defined by a 2-dimensional convolution kernel which is a product of a first 1-dimensional convolution kernel in the first direction substantially parallel to the contour (C), and a second 1-dimensional convolution kernel in the second direction substantially normal to the contour (C). The first 1-dimensional convolution kernel defines smoothing within each region separated by the contour, while the second 1-dimensional convolution kernel defines smoothing across the contour separating two regions, independently of the orientation of the object and the contour curvature.

摘要翻译： 本发明涉及一种用于从源图像提取对象（Ob）的系统（100），所述对象由轮廓（C）描绘，所述系统（100）包括梯度单元（110），用于计算源图像梯度 字段，基于源图像，平滑源图像梯度场的平滑单元（120），以及用于通过对平滑源图像梯度场进行积分来计算对象图像的积分单元（130），从而提取对象（Ob） 从源图像。 在源图像的每个点处，平滑由二维卷积核定义，二维卷积核是第一方向上基本上平行于轮廓（C）的第一一维卷积核的乘积，第二维 卷积核心在大致垂直于轮廓（C）的第二方向上。 第一个1维卷积内核定义在由轮廓分隔的每个区域内的平滑，而第二个1维卷积内核定义了分离两个区域的轮廓的平滑，独立于物体的方向和轮廓曲率。

公开(公告)号：US20120121146A1

公开(公告)日：2012-05-17

申请号：US13381689

申请日：2010-06-22

申请人： Jens Von Berg

发明人： Jens Von Berg

IPC分类号： G06K9/36

CPC分类号： G06T5/50 ,  G06T2207/10116 ,  G06T2207/20221 ,  G06T2207/20224 ,  G06T2207/30061

摘要： A system for generating a digital subtraction image of at least two input images. The system comprises a registration subsystem (1) for generating a plurality of different registrations of the input images (7, 8), based on different values of a registration parameter (6). The system further comprises a subtraction subsystem (2) for generating a plurality of subtracted images by subtracting the input images in accordance with respective ones of the plurality of registrations. The system further comprises a combining subsystem (3) for combining the plurality of subtracted images into a combined subtracted image (9). The registration parameter (6) represents an assumed depth of an object which is visible in the input images (7, 8). The combining subsystem (3) is arranged for assigning a combined pixel value to a pixel position of the combined subtracted image, based on pixel values of or around corresponding pixel positions in the plurality of subtracted images.

摘要翻译： 一种用于生成至少两个输入图像的数字减影图像的系统。 该系统包括用于基于注册参数（6）的不同值来生成输入图像（7,8）的多个不同注册的注册子系统（1）。 该系统还包括减法子系统（2），用于通过根据多个注册中的相应的注册减去输入图像来产生多个减法图像。 所述系统还包括用于将所述多个相减图像组合成组合减影图像（9）的组合子系统（3）。 注册参数（6）表示在输入图像（7,8）中可见的对象的假设深度。 组合子系统（3）被布置为基于多个相减图像中的相应像素位置的像素值或周围的组合像素值分配给组合减影图像的像素位置。

公开(公告)号：US20120095953A1

公开(公告)日：2012-04-19

申请号：US13145615

申请日：2010-01-13

申请人： Stefan Matthias Florian Schmidt ,  Sebastian Peter Michael Dries ,  Jens Von Berg

发明人： Stefan Matthias Florian Schmidt ,  Sebastian Peter Michael Dries ,  Jens Von Berg

IPC分类号： G06N5/02 ,  G06N5/00

CPC分类号： G06N5/048 ,  G06K9/00335 ,  G06N7/005 ,  G06N99/005

摘要： The invention relates to an apparatus for processing images by means of a series of user interactions. When processing an image, the user follows a series of interactions. Preferably, this is standardized to ensure reproducibility and accuracy. However, the series of interactions required from the user may be dependent on the needs of the user, the image being processed or even on the preferences of the user. The invention provides an apparatus which can deal with complex image processing requirements, providing both a standardized series of steps, or trail, in the image visualization process, and allowing the user to deviate from this standard trail if required. This accelerates and simplifies the interaction necessary when the user performs a known task on a different image. It also provides valuable assistance when the user performs an unfamiliar task, thereby avoiding mistakes, such as incorrect radiation levels during image acquisition, which can have serious consequences in a medical imaging environment.

摘要翻译： 本发明涉及一种借助于一系列用户交互来处理图像的装置。 当处理图像时，用户会遵循一系列交互。 优选地，这被标准化以确保重现性和准确性。 然而，用户所需的一系列交互可能取决于用户的需求，正在处理的图像，甚至取决于用户的偏好。 本发明提供了一种能够处理复杂图像处理要求，在图像可视化过程中同时提供标准化的一系列步骤或轨迹的装置，并且如果需要，允许用户偏离该标准轨迹。 当用户在不同的图像上执行已知任务时，这加速并简化了必要的交互。 当用户执行不熟悉的任务时，它还提供有价值的帮助，从而避免错误，例如在图像采集期间不正确的辐射水平，这可能在医学成像环境中产生严重的后果。