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    FIBER OPTIC SENSOR FOR DETERMINING 3D SHAPE
    25.
    发明申请
    FIBER OPTIC SENSOR FOR DETERMINING 3D SHAPE 审中-公开
    用于确定3D形状的光纤传感器

    公开(公告)号：US20130308138A1

    公开(公告)日：2013-11-21

    申请号：US13981692

    申请日：2012-01-23

    申请人： Gert Wim 'T Hooft ,  Robert Manzke

    发明人： Gert Wim 'T Hooft ,  Robert Manzke

    IPC分类号： G01B11/24

    CPC分类号： G01B11/24 ,  A61B34/20 ,  A61B2034/2061 ,  G01B11/18

    摘要： An optical shape sensing system employing an elongated device (20), an optical fiber (10) embedded within the elongated device (20) with the optical fiber (10) including one or more cores, an optical interrogation console (30) and a 3D shape reconstructor (40). In operation, the optical interrogation console (30) generates reflection spectrum data indicative of a measurement of both an amplitude and a phase of a reflection for each core of the optical fiber (10) as a function of wavelength and the 3D shape reconstructor (40) reconstructs a 3D shape of the optical fiber (10). The 3D shape reconstructor (40) executes a generation of local strain data for a plurality of positions along the optical fiber (10) responsive to the reflection spectrum data, a generation of local curvature and torsion angle data as a function of each local strain along the fiber, and a reconstruction of the 3D shape of the optical fiber (10) as a function of each local curvature and torsion angle along the optical fiber (10).

    摘要翻译： 一种使用细长装置（20）的光学形状感测系统，包括一个或多个芯的光纤（10）嵌入细长装置（20）内的光纤（10），光学询问控​​制台（30）和3D 形状重建器（40）。 在操作中，光询问控制台（30）产生反映光谱数据，该反射光谱数据指示作为波长的函数的光纤（10）的每个核心的反射的振幅和相位的测量，以及3D形状重建器（40 ）重建光纤（10）的3D形状。 3D形状重构器（40）响应于反射光谱数据执行沿着光纤（10）的多个位置的局部应变数据的产生，产生局部曲率和扭转角数据作为每个局部应变的函数 光纤，以及沿着光纤（10）作为每个局部曲率和扭转角的函数的光纤（10）的3D形状的重建。

    Image segmentation in a volume data set
    26.
    发明授权
    Image segmentation in a volume data set 有权
    卷数据集中的图像分割

    公开(公告)号：US07813549B2

    公开(公告)日：2010-10-12

    申请号：US10596148

    申请日：2004-11-26

    申请人： Thomas Buelow ,  Michael Grass ,  Christian Lorenz ,  Robert Manzke

    发明人： Thomas Buelow ,  Michael Grass ,  Christian Lorenz ,  Robert Manzke

    IPC分类号： G06K9/34 ,  G06K9/00

    CPC分类号： G06T7/11 ,  G06T2207/10081 ,  G06T2207/30101

    摘要： Coronary artery segmentation is a crucial task in cardiac CT image processing. This is often a tedious task performed manually by an operator. According to the present invention, a method is provided which combines data from multiple cardiac phases during the segmentation process in order to deliver a complete and continuous coronary vessel tree. Advantageously, this may allow for an improved visualization and segmentation of vessels, for example, in coronary CTA.

    摘要翻译： 冠状动脉分割是心脏CT图像处理中的关键任务。 这通常是由操作员手动执行的繁琐的任务。 根据本发明，提供了一种在分割过程中组合来自多个心脏相的数据以递送完整且连续的冠状动脉血管树的方法。 有利地，这可以允许例如在冠状动脉CTA中改善血管的可视化和分割。

    SYSTEM FOR MULTIMODALITY FUSION OF IMAGING DATA BASED ON STATISTICAL MODELS OF ANATOMY
    27.
    发明申请
    SYSTEM FOR MULTIMODALITY FUSION OF IMAGING DATA BASED ON STATISTICAL MODELS OF ANATOMY 审中-公开
    基于统计学模型的成像数据多元融合系统

    公开(公告)号：US20100254583A1

    公开(公告)日：2010-10-07

    申请号：US12746184

    申请日：2008-12-12

    申请人： Raymond Chan ,  Robert Manzke ,  Sandeep Dalal ,  Francois Tournoux

    发明人： Raymond Chan ,  Robert Manzke ,  Sandeep Dalal ,  Francois Tournoux

    IPC分类号： G06K9/00

    CPC分类号： A61B8/5238 ,  A61B6/503 ,  A61B6/5247 ,  A61B8/0883 ,  G06T7/33 ,  G06T2207/10116 ,  G06T2207/10132 ,  G06T2207/30048

    摘要： A ventricular epicardium registration method (60) involves three phases. The first phase (P62) is an identification of one or more anatomical features invisible within ultrasound images (41) of a ventricular epicardium of a heart (10). The second phase (P61) is a representation of the anatomical feature(s) visible within X-ray images (31) of the ventricular epicardium of the heart. The third phase (P63) is a registration of the ultrasound images (41) and the X-ray images (31) of the ventricular epicardium of the heart based on the representation of the anatomical feature(s) invisible in the ultrasound images (41) and on the identification of the anatomical feature(s) visible within the X-ray images (31). Examples of the anatomical feature(s) include, but are not limited to, a portion or an entirety of an epicardial surface (11, 12) and a coronary sinus vein (13).

    摘要翻译： 室心膜注射方法（60）涉及三个阶段。 第一阶段（P62）是心脏（10）的心室心外膜的超声图像（41）内不可见的一个或多个解剖特征的识别。 第二阶段（P61）是在心脏心室心外膜的X射线图像（31）中可见的解剖特征的表示。 第三阶段（P63）是基于在超声图像（41）中不可见的解剖特征的表示的心脏的心室心外膜的超声图像（41）和X射线图像（31）的配准 ）和在X射线图像（31）内可见的解剖特征的识别。 解剖特征的实例包括但不限于心外膜表面（11,12）和冠状静脉窦静脉（13）的一部分或全部。

    Artifact reduction
    28.
    发明授权
    Artifact reduction 有权
    人工减少

    公开(公告)号：US07792347B2

    公开(公告)日：2010-09-07

    申请号：US11570512

    申请日：2005-06-14

    申请人： Robert Manzke ,  Michael Grass ,  Thomas Koehler

    发明人： Robert Manzke ,  Michael Grass ,  Thomas Koehler

    IPC分类号： G06K9/00 ,  A61B6/00 ,  A61B5/02

    CPC分类号： G06T11/005 ,  G06T2211/412

    摘要： Minimizing the temporal width of the gating window during calculation of the gating function in cardiac CT may not result in best image quality with a maximum of signal-to-noise ratio and minimal artifacts. According to an exemplary embodiment of the present invention, the widths of the gating windows in cardiac CT are selected on the basis of a motion model describing the motion of the heart. According to an aspect of the present invention, the widths of the gating windows are determined by considering the duration of stationary cardiac phases. Thus, artifacts, such as motion artifacts or noise, are minimized.

    摘要翻译： 在计算心脏CT中门控功能时，最小化选通窗口的时间宽度可能无法以最大的信噪比和最小的人为因素产生最佳图像质量。 根据本发明的示例性实施例，基于描述心脏运动的运动模型来选择心脏CT中门控窗口的宽度。 根据本发明的一个方面，门控窗口的宽度通过考虑静止心脏相位的持续时间来确定。 因此，最小化诸如运动伪像或噪声的伪影。

    SHIFTING AN OBJECT FOR COMPLETE TRAJECTORIES IN ROTATIONAL X-RAY IMAGING
    29.
    发明申请
    SHIFTING AN OBJECT FOR COMPLETE TRAJECTORIES IN ROTATIONAL X-RAY IMAGING 有权
    在旋转X射线成像中移动完整轨道的对象

    公开(公告)号：US20100027742A1

    公开(公告)日：2010-02-04

    申请号：US12441613

    申请日：2007-09-17

    申请人： Babak Movassaghi ,  Robert Manzke ,  Joel Alberto Garcia

    发明人： Babak Movassaghi ,  Robert Manzke ,  Joel Alberto Garcia

    IPC分类号： G01N23/04 ,  A61B6/04 ,  H05G1/02

    CPC分类号： A61B6/0457 ,  A61B6/04 ,  A61B6/102 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/481 ,  A61B6/504 ,  A61B6/542 ,  A61B6/544 ,  A61B6/583

    摘要： It is described a method for acquiring a series of two-dimensional X-ray attenuation data of an object under examination (310) by means of an X-ray imaging apparatus (100) having a rotatable scanning unit (301). In order to increase the angular range of the scanning unit (301), when a region of interest (HOa) located not in the center of the object (310) is examined the object under examination (310) is shifted such that the region of interest is temporarily positioned outside the center of rotation. By coupling the rotational movement of the scanning unit (301) with the translative movement of the object (310) in a synchronized manner a collision between the scanning unit (301) and the object (310) can be effectively avoided. By employing an automated motorized object table (312) a precise pre-determined movement of the object (310) can be achieved during the data acquisition. By using an appropriate phantom based calibration procedure carried out with the same table movements known three-dimensional reconstruction algorithm can be directly applied in order to generate a three-dimensional representation of the region of interest (110a).

    摘要翻译： 描述了一种通过具有可旋转扫描单元（301）的X射线成像设备（100）获取被检查物体（310）的一系列二维X射线衰减数据的方法。 为了增加扫描单元（301）的角度范围，当检查位于物体（310）中心的感兴趣区域（110a）被检查时，检查对象（310）被移动，使得区域 兴趣被暂时定位在旋转中心之外。 通过将扫描单元（301）的旋转运动与物体（310）的平移运动以同步的方式耦合，可以有效地避免扫描单元（301）和物体（310）之间的碰撞。 通过采用自动电动对象表（312），可以在数据采集期间实现物体（310）的精确的预定移动。 通过使用用相同的表移动执行的适当的基于幻影的校准程序，可以直接应用已知的三维重建算法，以便产生感兴趣区域（110a）的三维表示。

    Computer tomography method for objects moving periodically
    30.
    发明授权
    Computer tomography method for objects moving periodically 有权
    用于周期性移动的物体的计算机断层摄影方法

    公开(公告)号：US07436925B2

    公开(公告)日：2008-10-14

    申请号：US10596150

    申请日：2004-12-01

    申请人： Robert Manzke ,  Michael Grass

    发明人： Robert Manzke ,  Michael Grass

    IPC分类号： A61B6/03

    CPC分类号： G06T11/005 ,  A61B6/027 ,  A61B6/032 ,  A61B6/469 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  G06T2211/412

    摘要： The invention relates to a computer tomography method in which a bundle of rays passes through an object that is moving periodically, in particular a heart. During the acquisition of measured values, a movement signal dependent on the movement of the object is sensed. From this movement signal are determined periodically repeated phases of movement, after which a plurality of intermediate images of a region of the object are reconstructed, in particular at a low resolution, using measured values whose times of acquisition were situated in different phases of movement, thus enabling each intermediate image to be assigned to a phase of movement. The phase of movement in which the object moved least in the region is then identified by determining the intermediate image having the fewest motion artifacts. Finally, a computer tomographic image of the region is reconstructed, in particular with a high spatial resolution, from measured values whose times of acquisition were situated in the phase of movement in which there was the least movement by the object in said region.

    摘要翻译： 本发明涉及一种计算机断层摄影方法，其中一束光线穿过周期性地移动的物体，特别是心脏。 在获取测量值期间，感测到取决于物体的移动的移动信号。 从该移动信号周期性地确定重复的移动相位，之后使用其采集时间位于不同移动阶段的测量值来重构物体区域的多个中间图像，特别是以低分辨率被重建， 从而能够将每个中间图像分配给运动阶段。 然后通过确定具有最少的运动伪像的中间图像来识别目标在该区域中最小移动的移动阶段。 最后，该区域的计算机断层图像，特别是具有高空间分辨率，由获取时间位于运动阶段的测量值，其中所述区域中物体的运动最少。