会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • FORWARD PROJECTION APPARATUS
    • 前进投影装置
    • US20130243297A1
    • 2013-09-19
    • US13988349
    • 2011-11-16
    • Thomas KoehlerBernhard Johannes BrendelHolger SchmittRolf Dieter Bippus
    • Thomas KoehlerBernhard Johannes BrendelHolger SchmittRolf Dieter Bippus
    • G06T11/00
    • G06T11/005G06T11/008G06T2211/424
    • The invention relates to a forward projection apparatus for performing a forward projection through an image (22), wherein at least one of a number of rays (20, 21) for performing the forward projection, a ray spacing between the rays and a kernel width of an interpolation kernel for calculating interpolated values located on the rays is varied depending on the ray width relative to an effective image element spacing between image elements (24) of the image. This allows reducing artifacts in simulated projection data and, thus, in an image, which is iteratively reconstructed by using the simulated projection data. For example, if the number of provided rays and/or the ray spacing between the provided rays is varied, aliasing artifacts can be reduced. Moreover, if the ray spacing between the provided rays and/or the kernel width of the interpolation kernel is varied, artifacts caused by varying effective kernel widths may be reduced.
    • 本发明涉及一种用于通过图像(22)进行向前投影的前投影装置,其中,用于执行向前投影的多个光线(20,21)中的至少一个,光线之间的光线间隔和核宽度 用于计算位于光线上的内插值的插值内核根据相对于图像的图像元素(24)之间的有效图像元素间隔的光线宽度而变化。 这允许减少模拟投影数据中的伪影,并因此减少通过使用模拟投影数据迭代重建的图像。 例如,如果提供的光线的数量和/或所提供的光线之间的光线间隔变化,则可以减少混叠伪影。 此外,如果所提供的光线之间的光线间距和/或内插核的内核宽度发生变化,则可能会降低由变化的有效内核宽度引起的伪影。
    • 4. 发明授权
    • Interventional imaging and data processing
    • 介入成像和数据处理
    • US08300765B2
    • 2012-10-30
    • US13054103
    • 2009-07-14
    • Schlomo GotmanUdo Van StevendaalPeter ForthmannHolger Schmitt
    • Schlomo GotmanUdo Van StevendaalPeter ForthmannHolger Schmitt
    • G01N23/04A61B6/00
    • A61B6/032A61B6/12A61B6/466A61B6/488A61B6/542A61B6/545A61B6/56H05G1/34
    • An imaging system includes a radiation source (110) that emits radiation that traverses an examination region. A controller (116) activates the radiation source (110) to emit radiation and deactivates the radiation source (110) to stop radiation emission. The controller (116) selectively activates the radiation source (110) to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component (124) that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component (128) that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system (132) that manipulates and navigates through the data set.
    • 成像系统包括发射穿过检查区域的辐射的辐射源(110)。 控制器(116)激活辐射源(110)以发射辐射并使辐射源(110)停用以停止辐射发射。 控制器(116)选择性地激活辐射源(110)以以一个或多个预定角度发射辐射。 在另一个实施例中,成像系统包括基于图像数据生成被扫描对象的感兴趣对象的虚拟三维图像的数据处理组件(124)。 在另一个实施例中,成像系统与数据操作和打包组件(128)通信,数据操纵和打包组件(128)基于体积图像数据生成至少二维或三维数据集,并将数据集打包在提供给 远程系统(132),其操纵和导航数据集。
    • 6. 发明申请
    • MODEL BASED SELF-POSITIONING PATIENT TABLE FOR X-RAY SYSTEMS
    • 基于模型的X射线系统自定位患者表
    • US20110002444A1
    • 2011-01-06
    • US12920333
    • 2009-03-09
    • Holger SchmittUdo Van StevendaalPeter ForthmannMichael Grass
    • Holger SchmittUdo Van StevendaalPeter ForthmannMichael Grass
    • A61B6/04G01N23/04
    • A61B6/0457A61B6/4441A61B6/465A61B6/469A61B6/488A61B6/547
    • A System (24) for positioning a carrier (9) of an object (10) within a field of view of an imaging unit (7b), the system comprising: an imaging receiving interface unit (14) for receiving image data (22) representing an image (9) of the object (10) from an imaging unit (7b), an object components position determination unit (15) for determining object components (11, 12) position data (25) representing positions of components (11, 12) of the object (10), a memory (16) with anatomic model data stored therein, the anatomic model data representing anatomic model (9*) component positions of anatomic model components (11*, 12*) of an atomic model (10*), a matching unit (17) designed to match object components (11, 12) positions and anatomic model components (11*, 12*) positions based on object components position data and anatomic model data, an input receiving unit (19) for receiving input data (23) representing a selected component (11) of interest, a positioning planning unit (18) for determining position shift data representing a direction and a distance by which the carrier (8) is to be shifted, considering the input data, anatomic model data and object components position data, an interface (20) to a positioning system (21) for shifting the carrier (8) based on the position shift data (27).
    • 一种用于将物体(10)的载体(9)定位在成像单元(7b)的视野内的系统(24),所述系统包括:用于接收图像数据(22)的成像接收接口单元(14) 从成像单元(7b)表示对象(10)的图像(9);对象分量位置确定单元(15),用于确定表示分量(11,12)的位置的对象分量(11,12) (10)的存储器(16),存储有解剖模型数据的存储器(16),所述解剖模型数据表示原子模型的解剖模型组件(11 *,12 *)的解剖模型(9 *)组件位置 10 *),匹配单元(17),其被设计为基于对象分量位置数据和解剖模型数据来匹配对象分量(11,12)位置和解剖模型分量(11 *,12 *)位置;输入接收单元 ),用于接收表示所选择的所选择的组件(11)的输入数据(23);定位计划单元(18) 考虑到输入数据,解剖模型数据和对象分量位置数据,表示载体(8)要移动的方向和距离的位置移位数据,到定位系统(21)的接口(20),用于移位 载体(8)基于位置偏移数据(27)。
    • 7. 发明授权
    • Apparatus for angiographic X-ray photography
    • 用于血管造影X射线摄影的装置
    • US07539529B2
    • 2009-05-26
    • US10553770
    • 2004-04-21
    • Holger SchmittMichael GrassVolker Rasche
    • Holger SchmittMichael GrassVolker Rasche
    • A61B6/00A61B6/02
    • A61B6/481A61B6/4441A61B6/504
    • The invention relates to an X-ray imaging device for visualizing the blood flow in a coronary vascular tree of a patient. According to the invention a first set (1) of X-ray projection images of the vascular tree is recorded during various phases of the heart cycle with simultaneous recording of the ECG (2) of the patient. By means of a suitable program control, computer means (17) of the device according to the invention a reconstruction then follows of the three-dimensional structure of the vascular tree during the various phases of the heart cycle. The invention proposes, to determine the time-dependent concentration of contrast agent within the reconstructed three-dimensional structure of the vascular tree, that local image areas within the X-ray projection images of the second set (6) assigned to individual vascular segments (5, 8) are located in accordance with the spatial positions of the vascular segments (5, 8) in the relevant phase of the heart cycle. The concentration of contrast agent in the area of the vascular segments (5, 8) is then determined by evaluation of the X-ray absorption within the local image areas found.
    • 本发明涉及用于使患者的冠状动脉血管树中的血流可视化的X射线成像装置。 根据本发明,在心脏周期的各个阶段记录血管树的X射线投影图像的第一组(1),同时记录患者的ECG(2)。 通过合适的程序控制,根据本发明的装置的计算机装置(17)在心脏周期的各个阶段期间重建血管树的三维结构。 本发明提出,为了确定造影剂在血管树的重建三维结构内的时间依赖性浓度,将第二组(6)的X射线投影图像内的局部图像区域分配给各个血管节段 5,8)根据心脏周期的相关阶段中血管段(5,8)的空间位置来定位。 然后通过评估所发现的局部图像区域内的X射线吸收来确定血管片段(5,8)区域中造影剂的浓度。