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
    • 1. 发明申请
    • GERÄT FÜR DIE ANGIOGRAPHISCHE RÖNTGEN-BILDGEBUNG
    • DEVICE血管造影X射线成像
    • WO2004093684A1
    • 2004-11-04
    • PCT/IB2004/050476
    • 2004-04-21
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.SCHMITT, HolgerGRASS, MichaelRASCHE, Volker
    • SCHMITT, HolgerGRASS, MichaelRASCHE, Volker
    • A61B6/00
    • A61B6/481A61B6/4441A61B6/504
    • Die Erfindung betrifft ein Röntgen-Bildgebungsgerät zur Visualisierung des Blutflusses in einem koronaren Gefäßbaum eines Patienten. Es wird gemäß der Erfindung ein erster Satz (1) von Röntgenprojektionsbildern des Gefäßbaumes in verschiedenen Phasen des Herzzyklus unter gleichzeitiger Aufzeichnung des EKG's (2) des Patienten aufgenommen. Sodann erfolgt mittels einer geeigneten Programmsteuerung von Computermitteln (17) des erfindungsgemäßen Gerätes eine Rekonstruktion der dreidimensionalen Struktur des Gefäßbaumes in den verschiedenen Phasen des Herzzyklus. Ein zweiter Satz (6) von Röntgenprojektionsbildern wird während der Gabe eines Kontrastmittels, wiederum unter Aufzeichnung des EKG's (7), aufgenommen. Die Erfindung schlägt zur Bestimmung der zeitabhängigen Kontrastmittelkonzentration innerhalb der rekonstruierten dreidimensionalen Struktur des Gefäßbaumes vor, einzelnen Gefäßsegmenten (5, 8) zugeordnete lokale Bildbe­reiche innerhalb der Röntgenprojektionsbilder des zweiten Satzes (6) entsprechend den räumlichen Positionen der Gefäßsegmente (5, 8) in der betreffenden Phase des Herzzyklus aufzufinden. Die Ermittlung der Kontrastmittelkonzentration im Bereich der Gefäßsegmente (5, 8) erfolgt dann durch Auswertung der Röntgenabsorbtion innerhalb der aufgefundenen lokalen Bildbereiche.
    • 本发明涉及一种X射线成像装置用于在患者的冠状血管树中的血液流动的可视化。 它是按照本发明采取的,在心动周期的不同阶段的血管树的X射线投影图像中的第一组(1)用ECG的同时记录(2)病人的。 然后,通过计算机的合适的程序的控制手段根据本发明的血管树的三维结构在心动周期的不同阶段的重构装置的装置(17)。 X射线投影图像的第二组(6)的造影剂的给药过程中被记录时,再次记录ECG(7)。 本发明提出以确定所述血管树中,每个容器的段的重构的三维结构内依赖于时间的造影剂浓度(5,8)与(6)对应于所述血管段的在相应的空间位置(8 5),第二组的x射线投影图像中的局部图像区域相关联的 发现心动周期的相位。 然后造影剂浓度的血管段的区域中的确定(5,8)由所述发现局部图像区域内评估Röntgenabsorbtion。
    • 3. 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
    • WO2009112998A1
    • 2009-09-17
    • PCT/IB2009/050958
    • 2009-03-09
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.SCHMITT, HolgerVAN STEVENDAAL, UdoFORTHMANN, PeterGRASS, Michael
    • SCHMITT, HolgerVAN STEVENDAAL, UdoFORTHMANN, PeterGRASS, Michael
    • A61B6/00A61B6/04
    • 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: - 成像接收接口单元(14),用于接收图像数据(22) )表示来自成像单元(7b)的对象(10)的图像(9), - 对象分量位置确定单元(15),用于确定表示分量位置的对象分量(11,12)位置数据(25) (10)的存储器(16),存储有解剖模型数据的存储器(16),解剖模型数据表示解剖模型组件(11 *,12 *)的解剖模型(9 *)组件位置 原子模型(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(19),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),用于 考虑输入数据,解剖模型数据和对象分量位置数据,确定表示载体(8)要移位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 基于位置偏移数据(27)移动载体(8)。
    • 5. 发明申请
    • COMPUTER TOMOGRAPHY METHOD FOR OBJECTS MOVING PERIODICALLY
    • 用于对象运动的计算机计算机方法
    • WO2005055829A1
    • 2005-06-23
    • PCT/IB2004/052612
    • 2004-12-01
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.MANZKE, RobertGRASS, Michael
    • MANZKE, RobertGRASS, Michael
    • A61B6/00
    • G06T11/005A61B6/027A61B6/032A61B6/469A61B6/503A61B6/504A61B6/541G06T2211/412
    • 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.
    • 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, 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,特别是具有高的空间分辨率,从获取时间位于运动阶段的测量值中重建,其中所述区域中物体的运动最少。
    • 10. 发明申请
    • ADVANCED CONVERGENCE FOR MULTIPLE ITERATIVE ALGORITHM
    • 多元迭代算法的高级收敛
    • WO2007069121A1
    • 2007-06-21
    • PCT/IB2006/054577
    • 2006-12-04
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.ZIEGLER, AndyGRASS, Michael
    • ZIEGLER, AndyGRASS, Michael
    • G06T1/60
    • G06T11/005G06T2211/424
    • Iterative methods for reconstructing of three-dimensional images based on projection data signals obtained by a computer tomography system often result in wrong absorption coefficients in particular for regions including a hollow space of an object under examination. Furthermore iterative methods show a slow convergence for calculating such absorption coefficients. According to embodiments of the present invention there is provided a method for an advanced reconstruction of three- dimensional images based on modified projection data signals. The modification includes an addition of a constant absorption value to the measured projection data. Advantageously the constant absorption value is an absorption line integral through a virtual body having the spatial constant absorption coefficient of water. The virtual body preferably has a volume which is slightly bigger than the object of interest.
    • 基于由计算机断层摄影系统获得的投影数据信号重建三维图像的迭代方法通常导致错误的吸收系数,特别是对于包括被检查物体的中空空间的区域。 此外,迭代方法显示计算这种吸收系数的缓慢收敛。 根据本发明的实施例,提供了一种基于经修改的投影数据信号对三维图像进行高级重建的方法。 修改包括对所测量的投影数据添加恒定的吸收值。 有利地,恒定吸收值是通过具有水的空间常数吸收系数的虚拟体积分的吸收线。 虚拟体优选地具有比感兴趣对象略大的体积。