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    Localization of aorta and left atrium from magnetic resonance imaging
    21.
    发明授权
    Localization of aorta and left atrium from magnetic resonance imaging 有权
    从磁共振成像定位主动脉和左心房

    公开(公告)号：US08781552B2

    公开(公告)日：2014-07-15

    申请号：US13546101

    申请日：2012-07-11

    申请人： Xiaoguang Lu ,  Marie-Pierre Jolly

    发明人： Xiaoguang Lu ,  Marie-Pierre Jolly

    IPC分类号： A61B5/055 ,  G06K9/00 ,  A61B5/00 ,  G01R33/483

    CPC分类号： A61B5/055 ,  A61B5/0044 ,  A61B5/7267 ,  A61B2576/023 ,  G01R33/483

    摘要： The aorta and left atrium are localized from magnetic resonance data. The locations of the aorta and left atrium are detected jointly. The aorta and the left atrium are, at least in part, treated as one object. The detection may be from data representing a two-dimensional region. The two-dimensional region may be determined by first detecting the left ventricle from data representing a volume.

    摘要翻译： 主动脉和左心房由磁共振数据定位。 联合检测主动脉和左心房的位置。 主动脉和左心房至少部分被视为一个对象。 检测可以来自表示二维区域的数据。 可以通过首先从表示体积的数据检测左心室来确定二维区域。

    MOTION TRACKING FOR CLINICAL PARAMETER DERIVATION AND ADAPTIVE FLOW ACQUISITION IN MAGNETIC RESONANCE IMAGING
    22.
    发明申请
    MOTION TRACKING FOR CLINICAL PARAMETER DERIVATION AND ADAPTIVE FLOW ACQUISITION IN MAGNETIC RESONANCE IMAGING 有权
    用于临床参数衍生的运动跟踪和磁共振成像中的自适应流量采集

    公开(公告)号：US20120076382A1

    公开(公告)日：2012-03-29

    申请号：US13239530

    申请日：2011-09-22

    申请人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Xiaoguang Lu ,  Hui Xue ,  Jeremy Collins ,  Peter Weale

    发明人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Xiaoguang Lu ,  Hui Xue ,  Jeremy Collins ,  Peter Weale

    IPC分类号： G06K9/00

    CPC分类号： G01R33/56316

    摘要： A method for clinical parameter derivation and adaptive flow acquisition within a sequence of magnetic resonance images includes commencing an acquisition of a sequence of images. One or more landmarks are automatically detected from within one or more images of the sequence of images. The detected one or more landmarks are propagated across subsequent images of the sequence of images. A plane is fitted to the propagation of landmarks. The positions of landmarks or alternatively the position of the fitted plane within the sequence of images is used for derivation of clinical parameters such as tissue velocities and/or performing adaptive flow acquisitions to measure blood flow properties.

    摘要翻译： 在磁共振图像序列内的临床参数推导和自适应流采集的方法包括开始获取图像序列。 在图像序列的一个或多个图像内自动检测一个或多个地标。 检测到的一个或多个地标在图像序列的后续图像中传播。 一个平面适合于地标的传播。 地标的位置或替代地，图像序列内的拟合平面的位置用于推导诸如组织速度的临床参数和/或执行自适应流采集以测量血流特性。

    INTERACTION METHOD FOR REGIONS OF-INTEREST IN TIME SERIES IMAGES
    23.
    发明申请
    INTERACTION METHOD FOR REGIONS OF-INTEREST IN TIME SERIES IMAGES 有权
    时间序列图像中的区域交互方法

    公开(公告)号：US20120087561A1

    公开(公告)日：2012-04-12

    申请号：US13248309

    申请日：2011-09-29

    申请人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Arne Littmann ,  Manuela Rick ,  Michaela Schmidt ,  Hui Xue

    发明人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Arne Littmann ,  Manuela Rick ,  Michaela Schmidt ,  Hui Xue

    IPC分类号： G06K9/46

    CPC分类号： G06T7/0083 ,  G06T7/12 ,  G06T7/174 ,  G06T2207/10016 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/20104 ,  G06T2207/30004

    摘要： A method for identifying a region of interest within a time sequence of images includes acquiring a time sequence of images comprising a plurality of image frames. Image segmentation is performed to segment a region of interest (ROI) from within each of the plurality of image frames of the time sequence of images. Manual edits are received for the ROI within one or more of the plurality of image frames. The manual edits are propagated to other image frames of the plurality of images. An extent to which each of the manual edits are propagated to other image frames is dependent upon a transformation function or deformation field used to propagate the manual edits and a weighing factor that is influenced by a distance in time between the other image frames and the frames that have been manually edited.

    摘要翻译： 用于识别图像的时间序列内的感兴趣区域的方法包括获取包括多个图像帧的图像的时间序列。 执行图像分割以从图像的时间序列的多个图像帧的每一个内分割感兴趣区域（ROI）。 对于多个图像帧中的一个或多个中的ROI，接收手动编辑。 手动编辑被传播到多个图像的其他图像帧。 每个手动编辑传播到其他图像帧的程度取决于用于传播手动编辑的变换函数或变形字段以及受其他图像帧和帧之间的时间距离的影响的称重因子 已经被手动编辑。

    Interaction method for regions of-interest in time series images
    24.
    发明授权
    Interaction method for regions of-interest in time series images 有权
    时间序列图像中感兴趣区域的交互方法

    公开(公告)号：US08805045B2

    公开(公告)日：2014-08-12

    申请号：US13248309

    申请日：2011-09-29

    申请人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Arne Littmann ,  Manuela Rick ,  Michaela Schmidt ,  Hui Xue

    发明人： Christoph Guetter ,  Jens Gühring ,  Marie-Pierre Jolly ,  Arne Littmann ,  Manuela Rick ,  Michaela Schmidt ,  Hui Xue

    IPC分类号： G06K9/00 ,  G06T7/00

    CPC分类号： G06T7/0083 ,  G06T7/12 ,  G06T7/174 ,  G06T2207/10016 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/20104 ,  G06T2207/30004

    摘要： A method for identifying a region of interest within a time sequence of images includes acquiring a time sequence of images comprising a plurality of image frames. Image segmentation is performed to segment a region of interest (ROI) from within each of the plurality of image frames of the time sequence of images. Manual edits are received for the ROI within one or more of the plurality of image frames. The manual edits are propagated to other image frames of the plurality of images. An extent to which each of the manual edits are propagated to other image frames is dependent upon a transformation function or deformation field used to propagate the manual edits and a weighing factor that is influenced by a distance in time between the other image frames and the frames that have been manually edited.

    摘要翻译： 用于识别图像的时间序列内的感兴趣区域的方法包括获取包括多个图像帧的图像的时间序列。 执行图像分割以从图像的时间序列的多个图像帧的每一个内分割感兴趣区域（ROI）。 对于多个图像帧中的一个或多个中的ROI，接收手动编辑。 手动编辑被传播到多个图像的其他图像帧。 每个手动编辑传播到其他图像帧的程度取决于用于传播手动编辑的变换函数或变形字段以及受其他图像帧和帧之间的时间距离的影响的称重因子 已经被手动编辑。

    SYSTEM AND METHOD FOR BACKGROUND PHASE CORRECTION FOR PHASE CONTRAST FLOW IMAGES
    26.
    发明申请
    SYSTEM AND METHOD FOR BACKGROUND PHASE CORRECTION FOR PHASE CONTRAST FLOW IMAGES 有权
    用于相位对比流图像的相位校正的系统和方法

    公开(公告)号：US20120076380A1

    公开(公告)日：2012-03-29

    申请号：US13210497

    申请日：2011-08-16

    申请人： Jens Gühring ,  Marie-Pierre Jolly ,  Hui Xue

    发明人： Jens Gühring ,  Marie-Pierre Jolly ,  Hui Xue

    IPC分类号： G06K9/00

    CPC分类号： G01R33/56316 ,  A61B5/0263 ,  A61B5/055 ,  G01R33/5608

    摘要： A method for correcting the background phase in magnetic resonance phase contrast flow images includes providing a time series of velocity encoded magnetic resonance images of a patient, where the time series of velocity encoded images comprises for each time point a phase contrast image where a pixel intensity is proportional to a flow velocity, measuring a change of intensity for each pixel over the time series of phase contrast images, identifying pixels with a low measure of temporal change as stationary pixels, and calculating a correction field for the stationary pixels, where the correction field represents a background phase to be subtracted from the phase contrast image.

    摘要翻译： 用于校正磁共振相位对比流图像中的背景相位的方法包括提供患者的速度编码的磁共振图像的时间序列，其中速度编码图像的时间序列包括每个时间点的像素强度 与流速成比例，测量在相位对比图像的时间序列上的每个像素的强度变化，将以时间变化的低度量度的像素识别为静止像素，以及计算用于静止像素的校正场，其中校正 场表示从相位差图像中减去的背景相位。

    Editing of pre-segmented images using seeds derived from contours
    27.
    发明授权
    Editing of pre-segmented images using seeds derived from contours 有权
    使用源自轮廓的种子编辑预分割图像

    公开(公告)号：US08131076B2

    公开(公告)日：2012-03-06

    申请号：US12031966

    申请日：2008-02-15

    申请人： Marie-Pierre Jolly ,  Leo Grady

    发明人： Marie-Pierre Jolly ,  Leo Grady

    IPC分类号： G06K9/34

    CPC分类号： G06K9/342

    摘要： A method for processing an object in image data includes the steps of drawing a contour on a pre-segmentation of an object in image data, generating at least one seed point on the pre-segmentation from an intersection of the contour and the pre-segmentation, providing a weighting factor between the seed points and the pre-segmentation, and segmenting the pre-segmentation using the seed points and the weighting factor to generate a new pre-segmentation.

    摘要翻译： 一种用于处理图像数据中的对象的方法包括以下步骤：对图像数据中的对象的预分割绘制轮廓，从轮廓和预分割的交点产生预分割上的至少一个种子点 提供种子点和预分割之间的加权因子，以及使用种子点和加权因子分割预分割以产生新的预分割。

    Contrast-invariant registration of cardiac and renal magnetic resonance perfusion images
    28.
    发明授权
    Contrast-invariant registration of cardiac and renal magnetic resonance perfusion images 有权
    心脏和肾脏磁共振灌注图像的对比不变记录

    公开(公告)号：US07734075B2

    公开(公告)日：2010-06-08

    申请号：US11078035

    申请日：2005-03-11

    申请人： Ying Sun ,  Marie-Pierre Jolly ,  Jose M. F. Moura

    发明人： Ying Sun ,  Marie-Pierre Jolly ,  Jose M. F. Moura

    IPC分类号： G06K9/00 ,  A61B5/05

    CPC分类号： A61B5/055

    摘要： A system and method are provided for contrast-invariant registration of images, the system including a processor, an imaging adapter or a communications adapter for receiving an image data sequence, a user interface adapter for selecting a reference frame from the image sequence or cropping a region of interest (ROI) from the reference frame, a tracking unit for tracking the ROI across the image sequence, and an estimation unit for segmenting the ROI in the reference frame or performing an affine registration for the ROI; and the method including receiving an image sequence, selecting a reference frame from the image sequence, cropping a region of interest (ROI) from the reference frame, tracking the ROI across the image sequence, segmenting the ROI in the reference frame, and performing an affine registration for the ROI.

    摘要翻译： 提供了用于对比度不变的图像配准的系统和方法，所述系统包括处理器，成像适配器或用于接收图像数据序列的通信适配器，用于从图像序列中选择参考帧的用户接口适配器或裁剪 来自参考帧的感兴趣区域（ROI），用于跟踪跨越图像序列的ROI的跟踪单元，以及用于在参考帧中分割ROI或对ROI执行仿射注册的估计单元; 并且所述方法包括接收图像序列，从所述图像序列中选择参考帧，从所述参考帧裁剪感兴趣区域（ROI），沿所述图像序列跟踪所述ROI，在所述参考帧中分割所述ROI，以及执行 ROI的仿射注册。

    System for modeling static and dynamic three dimensional anatomical structures by 3-D models
    30.
    发明授权
    System for modeling static and dynamic three dimensional anatomical structures by 3-D models 失效
    三维模型静态和动态三维解剖结构建模系统

    公开(公告)号：US06816607B2

    公开(公告)日：2004-11-09

    申请号：US09858368

    申请日：2001-05-16

    申请人： Thomas O'Donnell ,  Alok Gupta ,  Marie-Pierre Jolly

    发明人： Thomas O'Donnell ,  Alok Gupta ,  Marie-Pierre Jolly

    IPC分类号： G06K900

    CPC分类号： G06T17/00 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10072 ,  G06T2207/20116 ,  G06T2207/30048 ,  G06T2210/41

    摘要： The present invention relates to a system of modeling a three dimensional target object which is represented by a plurality of cross-sectional images in order to provide a representative corresponding three dimensional model. The invention selects an initial model from a plurality of available initial models. This selection involves identifying an initial model based on physical similarity to the target object and then superimposing an initial model upon the target object, for each of the plurality of cross-sectional images. A determination is then made of an intersection contour of the initial model and a cross-sectional image of the target object and the determined intersection contour is refined in order to more closely delineate the target object. By sub-sampling points which represent the refined determined intersection contour, the invention obtains a sub-sampled contour dataset. The initial model is then adjusted towards the sub-samples contour to obtain a representative three dimensional model of the target object.

    摘要翻译： 本发明涉及一种由多个横截面图像表示的三维目标对象的建模系统，以便提供代表性的对应的三维模型。 本发明从多个可用的初始模型中选择初始模型。 该选择包括基于与目标对象的物理相似性来识别初始模型，然后针对多个横截面图像中的每一个，将初始模型叠加在目标对象上。 然后确定初始模型和目标对象的横截面图像的交点轮廓，并且对确定的交集轮廓进行细化以便更加紧密地描绘目标对象。 通过对表示精确确定的交集轮廓的子采样点，本发明获得了子采样轮廓数据集。 然后将初始模型调整到子样本轮廓以获得目标对象的代表性三维模型。