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公开(公告)号：US06869217B2
公开(公告)日：2005-03-22
申请号：US09732200
申请日：2000-12-07
CPC分类号： A61B6/4441 , A61B6/4452 , A61B6/4458 , A61B6/4464
摘要： The invention relates to an X-ray device which includes an X-ray source and an X-ray detector which are mounted at a respective end of a common holding device. The holding device being attached to the room by way of a supporting device. In order to realize a more flexible construction of such X-ray devices that are widely used and are usually provided with a holding device in the form of a C-arm and nevertheless maintain a high positioning accuracy. The invention further relates to a supporting device constructed with a plurality of hinged, serially interconnected supporting members. The supporting device is formed notably by a serial manipulator, for example, a conventional robot arm.
摘要翻译： 本发明涉及一种X射线装置，其包括安装在公共保持装置的相应端部处的X射线源和X射线检测器。 保持装置通过支撑装置附接到房间。 为了实现广泛使用的这种X射线装置的更灵活的构造，并且通常设置有C形臂形式的保持装置，并且保持高的定位精度。 本发明还涉及一种由多个铰接的，串联连接的支撑构件构成的支撑装置。 支撑装置特别地由串联操纵器（例如常规的机器人手臂）形成。
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公开(公告)号：US06461039B1
公开(公告)日：2002-10-08
申请号：US09680190
申请日：2000-10-05
IPC分类号： H05G102
CPC分类号： A61B6/4441 , A61B6/027 , A61B6/4464
摘要： The invention relates to an X-ray device which includes a C-arm (12) carrying an X-ray source (2) and an X-ray detector (3), and includes a suspension device (14) with a joint (13), the X-ray source (2) and the X-ray detector (3) being rotatable about a propeller axis (z4) which extends through the joint (13). In order to enable flexible movements in such an X-ray device, notably a wide variety of trajectories, according to the invention the X-ray device is construction in such a manner that the position of the propeller axis (z4) can be changed in all spatial directions (z1, z2, z3).
摘要翻译： 本发明涉及一种X射线装置，其包括携带X射线源（2）和X射线检测器（3）的C形臂（12），并且包括具有接头（13）的悬挂装置（14） ），X射线源（2）和X射线检测器（3）能够绕延伸穿过接头（13）的螺旋桨轴线（z4）旋转。 为了能够在这种X射线装置中实现灵活的移动，特别是各种各样的轨迹，根据本发明，X射线装置的结构是这样一种方式：螺旋桨轴（z4）的位置可以改变 所有空间方向（z1，z2，z3）。
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公开(公告)号：US06618468B2
公开(公告)日：2003-09-09
申请号：US10126214
申请日：2002-04-19
IPC分类号： H05G164
CPC分类号： G06T11/005
摘要： The invention relates to a method of reconstructing images from cone beam projection data from an examination zone (3) of an object to be examined. The cone beam projection data is acquired by means of an X-ray device which includes an X-ray source (1) and an X-ray image intensifier (2), the X-ray source (1) being guided along a trajectory around the examination zone (3) in order to acquire the projection data. First projection data are then acquired from the examination zone (3) in a first mode of operation of the X-ray image intensifier (2) which involves a low resolution. For a sub-zone (4) of the examination zone (3) second projection data is acquired in a second mode of operation of the X-ray image intensifier (2) which involves a high resolution. Subsequently, the first and second projection data is combined so as to form third projection data. The third projection data is represented by the second projection data in the sub-zone (4) of the examination zone (3) and by the first projection data in the remaining part (3a) of the examination zone (3). The images are reconstructed on the basis of the third projection data. The invention also relates to a corresponding X-ray device, notably a C-arm X-ray device.
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4.发明授权Method and apparatus for intravascular localization and imaging without X-rays 失效无X射线的血管内定位和成像的方法和装置公开(公告)号：US06813512B2
公开(公告)日：2004-11-02
申请号：US09976328
申请日：2001-10-12
申请人： Bernd Aldefeld , Friedrich-Karl Beckmann , Holger Eggers , Rolf Udo Dieter Kobs , Erhard Paul Artur Klotz , Michael Harald Kuhn , Dirk Manke , Volker Rasche , Georg Weidinger
发明人： Bernd Aldefeld , Friedrich-Karl Beckmann , Holger Eggers , Rolf Udo Dieter Kobs , Erhard Paul Artur Klotz , Michael Harald Kuhn , Dirk Manke , Volker Rasche , Georg Weidinger
IPC分类号： A61B500
CPC分类号： A61B5/065 , A61B5/055 , A61B5/06 , A61B34/20 , A61B90/361 , A61B90/37 , A61B2017/00243 , A61B2034/2051 , A61B2034/2063 , A61B2090/374 , A61B2090/3782 , A61B2090/3958
摘要： A device for determining the position of a medical instrument that is introduced into an object to be examined is also used for imaging the vicinity of the medical instrument. In order to enable the acquisition of instantaneous position information and image information from the vicinity of the medical instrument for all kinds of medical instruments, a localization device that is arranged in the end zone of the medical instrument that is to be introduced determines the position of the medical instrument within the object to be examined; at the same time image information is acquired in the vicinity of the medical instrument by an image acquisition device that is arranged on the medical instrument and on the basis of the position thus determined the position of the medical instrument (3) is reproduced in a survey image of the object to be examined and images of the vicinity of the object to be examined are displayed on the basis of the image information acquired.
摘要翻译： 用于确定被引入待检查物体的医疗器具的位置的装置也用于对医疗器械附近进行成像。 为了能够从用于各种医疗器械的医疗器械附近获取瞬时位置信息和图像信息，布置在待引入的医疗器械的端部区域中的定位装置决定了 待检对象内的医疗器械; 同时通过布置在医疗器械上的图像获取装置在医疗器械附近获取图像信息，并且基于如此确定的位置，在调查中再现医疗器械（3）的位置 基于所获取的图像信息，显示要被检查的对象的图像和被检查对象的附近的图像。
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公开(公告)号：US06570954B2
公开(公告)日：2003-05-27
申请号：US10050252
申请日：2002-01-16
IPC分类号： H05G160
CPC分类号： A61B6/0457 , A61B6/032
摘要： An X-ray device for the formation of slice images of an object to be examined including an X-ray source, an X-ray detector, a transport device for moving the object during the acquisition of a series of X-ray projection images of the object in a movement plane situated parallel to the imaging plane, and a control device for controlling the acquisition of the X-ray projection images and the transport device. Slice images of the object are formed from the X-ray projection images by a tomosynthesis method. In order to enable the formation of slice images of large objects to be examined, or of large parts thereof, within a period of time which is as short as possible, the X-ray source and the X-ray detector are stationary during the acquisition of the X-ray projection images and the control device is configured such that the speed of motion of the object and the moments of acquisition of the X-ray projection images are such that all points to be examined in an examination zone of the object are imaged in at least 10, but preferably in at least 50 different X-ray projection images.
摘要翻译： 一种用于形成待检查对象的切片图像的X射线装置，包括X射线源，X射线检测器，用于在获取一系列X射线投影图像期间移动物体的输送装置 在与成像平面平行的运动平面中的物体，以及用于控制X射线投影图像和运送装置的获取的控制装置。 通过断层合成法从X射线投影图像形成物体的切片图像。 为了能够在尽可能短的时间内形成要检查的大对象或其大部分的切片图像，在采集期间X射线源和X射线检测器是静止的 的X射线投影图像和控制装置被配置为使得物体的运动速度和X射线投影图像的获取时刻使得在对象的检查区域中要检查的所有点是 在至少10个，但优选至少50个不同的X射线投影图像中成像。
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公开(公告)号：US06931093B2
公开(公告)日：2005-08-16
申请号：US10477822
申请日：2002-05-16
CPC分类号： A61B6/4225 , A61B6/461 , G06T11/006 , G06T2211/436 , H04N5/32 , H04N13/221 , H04N13/254 , H04N13/296 , Y10S378/901
摘要： For imaging a 3D data set the method of the invention comprises the following steps in succession: acquisition of images, reconstructing a 3D data set, followed by visualization, the reconstruction being started with a limited initial range of orientations around the direction of a local midprojection from a starting point so as to be visualized, the acquisition being continued during visualization and the reconstruction being updated in accordance with the additional acquisition obtained up to a final result. In particular, the selected part comprises a first visualization covering a range of from about 40° to 60°, with a midprojection at about from 20° to 30°.
摘要翻译： 为了对3D数据集进行成像，本发明的方法包括以下步骤：拍摄图像，重建3D数据集，随后可视化，重建以围绕局部中间投影方向的有限的初始取向范围开始 从起点开始可视化，在可视化期间继续进行采集，并根据获得的最终结果获得的附加获取更新重建。 特别地，所选择的部分包括覆盖约40°至60°的范围的第一可视化，中间投影约为20°至30°。
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公开(公告)号：US06744852B2
公开(公告)日：2004-06-01
申请号：US10197757
申请日：2002-07-19
IPC分类号： G21K100
CPC分类号： G21K1/025 , A61B6/037 , A61B6/4258 , H01S5/3201
摘要： The invention relates to an anti-scatter grid for an X-ray device which serves to reduce scattered radiation generated in an object to be examined and includes a plurality of absorber laminations for the absorption of the scattered radiation and a channel medium which is transparent to X-rays and arranged between the absorber laminations. In order to enable notably simple and precise manufacture of such an anti-scatter grid while the primary radiation is attenuated as little as possible and scattered radiation is attenuated as much as possible, in accordance with the invention a non-elastic high-resistance foam, notably a polymethacrylimide high-resistance foam, is used as the channel medium. The invention also relates to a collimator, for example, for a single-photon emitter or a positron emitter, in which a non-elastic high-resistance foam is also used as the channel medium between the laminations.
摘要翻译： 本发明涉及一种用于X射线装置的防散射栅格，其用于减少待检测物体中产生的散射辐射，并且包括用于吸收散射辐射的多个吸收体层叠体和对第 X射线并且布置在吸收体层叠之间。 为了能够显着简单且精确地制造这种防散射栅格，同时主辐射尽可能少地衰减并且散射辐射尽可能地衰减，根据本发明，非弹性高电阻泡沫， 特别是聚甲基丙烯酰亚胺高电阻泡沫，被用作沟道介质。 本发明还涉及例如用于单光子发射器或正电子发射器的准直器，其中非弹性高电阻泡沫也用作叠片之间的通道介质。
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公开(公告)号：US06999811B2
公开(公告)日：2006-02-14
申请号：US10197546
申请日：2002-07-17
IPC分类号： A61B5/05
CPC分类号： G06T7/38 , G06T7/33 , G06T2207/30004
摘要： A method and a device provide for the registration of two 3D image data sets of an object to be examined. The object to be examined is provided with a plurality of markers In order to enable a registration to be carried out, the positions of the markers in the 3D image data sets are first determined in a co-ordinate system associated with the relevant 3D image data set. The distances between the markers and/or the angles formed between lines which intersect in a marker and extend through two further markers are then determined. Finally, a transformation rule for the transformation of one of the 3D image data sets to the co-ordinate system of the other 3D image data set is determined.
摘要翻译： 方法和装置提供待检查对象的两个3D图像数据集的注册。 要检查的对象被设置有多个标记为了能够执行注册，首先在与相关3D图像数据相关联的坐标系中确定3D图像数据集中的标记的位置 组。 然后确定标记之间的距离和/或在标记中相交并延伸穿过另外两个标记的线之间形成的角度。 最后，确定用于将3D图像数据集中的一个转换为另一3D图像数据集的坐标系的变换规则。
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9.发明授权Method of imaging the blood flow as a function of time in an object to be examined 失效在待检查对象中根据时间的函数对血流进行成像的方法公开(公告)号：US06442235B2
公开(公告)日：2002-08-27
申请号：US09749147
申请日：2000-12-27
IPC分类号： G01N2324
CPC分类号： A61B6/481 , A61B6/4014 , A61B6/504
摘要： The invention relates to a method of imaging the blood flow as a function of time in an object (3) to be examined, which method includes the following steps: a) acquisition of a series of X-ray projection images (Di; Ej) during administration of a contrast medium to the blood vessels in the object (3) to be examined, b) acquisition of an image data set (H; K) containing the course of the blood vessels in the object (3) to be examined, c) segmentation of the regions of the blood vessels in the individual X-ray projection images (Di; Ej) that are filled with contrast medium, d) encoding the image data set (H; K) in time by comparing the image data set (H; K) with the segmented X-ray projection images (Dj′; Fj), and e) displaying one or more images (B) formed from the time-encoded image data set (H′; R′) and representing the blood flow as a function of time. The invention also relates to a correspondingly constructed X-ray device.
摘要翻译： 本发明涉及一种在被检查对象（3）中作为时间的函数对血流成像的方法，该方法包括以下步骤：a）获取一系列X射线投影图像（Di; Ej） 在对被检查体（3）中的血管施用造影剂的情况下，b）获取包含被检查物体（3）内的血管进程的图像数据组（H; K） c）在填充有造影剂的各个X射线投影图像（Di; Ej）中对血管的区域进行分割，d）通过比较图像数据集合来对图像数据集（H; K）进行时间编码 （H; K）与分割的X射线投影图像（Dj'; Fj）和ande），显示由时间编码图像数据组（H'; R'）形成并表示血液的一个或多个图像（B） 作为时间的函数的流动。本发明还涉及相应构造的X射线装置。
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10.发明授权Method and apparatus for visualizing a limited part of a 3D medical image-point-related data set, through basing a rendered image on an intermediate region between first and second clipping planes, and including spectroscopic viewing of such region 失效用于通过将渲染图像基于第一和第二剪切平面之间的中间区域，并且包括这样的区域的光谱观察来将三维医学图像点相关数据集的有限部分可视化的方法和装置公开(公告)号：US07127091B2
公开(公告)日：2006-10-24
申请号：US10023167
申请日：2001-12-18
IPC分类号： G06K9/00
CPC分类号： G06T15/30 , Y10S128/922
摘要： For visualizing a limited part of a 3D medical image-point-related data set, Selectively, a geometrically selected part of the data set is suppressed and an image rendered based on any non-suppressed part of the data set. The selected geometrically selected part includes a first selection containing all points associated to a nearer region with respect to a first clipping plane, and all points associated to a farther region with respect to a second clipping plane, respectively. The image rendered thereby is based on an intermediate region between the first clipping plane and the second clipping plane.
摘要翻译： 为了可视化3D医疗图像点相关数据集的有限部分，选择性地，数据集的几何选择的部分被抑制，并且基于数据集的任何未被抑制的部分呈现图像。 所选择的几何选择部分包括分别包含与相对于第一剪切平面相邻的更靠近区域的所有点以及相对于第二剪切平面与更远的区域相关联的所有点的第一选择。 由此渲染的图像基于第一剪裁平面和第二剪切平面之间的中间区域。
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