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1834 条记录 (耗时 0.026 秒)

    X-RAY PANORAMIC IMAGING APPARATUS
    25.
    发明申请
    X-RAY PANORAMIC IMAGING APPARATUS 审中-公开

    公开(公告)号：US20170231582A1

    公开(公告)日：2017-08-17

    申请号：US15519144

    申请日：2015-10-13

    申请人： VATECH Co., Ltd. ,  VATECH EWOO Holdings Co., Ltd.

    发明人： Chang-Joon RO

    IPC分类号： A61B6/14 ,  H01J35/08 ,  H01J35/06 ,  A61B6/00

    CPC分类号： A61B6/14 ,  A61B6/027 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4021 ,  A61B6/4435 ,  A61B6/4476 ,  H01J35/065 ,  H01J35/08 ,  H01J2235/068

    摘要： The present invention relates to a panoramic X-ray imaging apparatus capable of obtaining more accurate panoramic X-ray images while minimizing the rotation of a rotation arm, the panoramic X-ray imaging apparatus includes at least one X-ray source configured to irradiate X-rays and an X-ray sensor configured to receive the X-rays, a rotating arm configured to position the X-ray sensor and the X-ray source to face each other, a driver configured to rotate the rotating arm about a rotating shaft, a guide configured to provide directions for moving the X-ray sensor or the X-ray source, and wherein the at least one X-ray source is of an electric field emission type adopting an emitter of a nanostructure material and the X-ray source or the X-ray sensor is relatively movable along the guide in conjunction with a movement of the rotating arm.

    X-RAY CT APPARATUS
    26.
    发明申请
    X-RAY CT APPARATUS 审中-公开

    公开(公告)号：US20170172524A1

    公开(公告)日：2017-06-22

    申请号：US15438256

    申请日：2017-02-21

    申请人： Toshiba Medical Systems Corporation

    发明人： Masaharu TSUYUKI

    IPC分类号： A61B6/04 ,  A61B6/00 ,  A61B6/03

    CPC分类号： A61B6/487 ,  A61B6/027 ,  A61B6/032 ,  A61B6/06 ,  A61B6/4035 ,  A61B6/465 ,  A61B6/467 ,  A61B6/5205 ,  A61B6/542

    摘要： An X-ray CT apparatus includes: a gantry having an opening provided to be interposed between an X-ray tube and an X-ray detector; a couch including driving circuitry for inserting a couchtop on which a subject is placed, into the opening; storage circuitry storing therein pieces of information that are related to puncture positions of the couchtop and correspond to pieces of unique information of practitioners who each apply a manipulation to the subject; and processing circuitry configured, when a first practitioner is to apply the manipulation, to control the driving circuitry so as to move the couchtop to a puncture position indicated by a piece of information related to a puncture position corresponding to a piece of unique information pertaining to the first practitioner, the piece of information being among the pieces of information that are related to the puncture positions and stored in the storage circuitry.

    C-arm system and C-arm spin acquisition trajectories for dynamic imaging and improved image quality and method of use
    27.
    发明授权
    C-arm system and C-arm spin acquisition trajectories for dynamic imaging and improved image quality and method of use 有权
    C臂系统和C臂旋转获取轨迹，用于动态成像和改进的图像质量和使用方法

    公开(公告)号：US09532757B2

    公开(公告)日：2017-01-03

    申请号：US14319309

    申请日：2014-06-30

    申请人： General Electric Company

    发明人： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Omar Al Assad

    IPC分类号： A61B6/00 ,  A61B6/02 ,  A61B6/03

    CPC分类号： A61B6/4441 ,  A61B6/027 ,  A61B6/032 ,  A61B6/486 ,  A61B6/507

    摘要： C-arm systems and method for making and using continuous C-arm spin acquisition trajectories for dynamic imaging and improved image quality are described. In such systems and methods, a C-arm gantry, coupled to a C-arm support assembly, is adapted to retain an x-ray source and an x-ray detector. The C-arm gantry is selectively rotatable relative to the C-arm support assembly about both a C-arm axis and a pivot-axis to displace the x-ray source and the x-ray detector along a continuous C-arm spin trajectory. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory including a plurality of shorts arcs and a plurality of long arcs. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory to provide continuous three-dimensional imaging of dynamic processes.

    摘要翻译： 描述了用于制造和使用连续的C臂旋转获取轨迹的C臂系统和用于动态成像和改进的图像质量的方法。 在这种系统和方法中，耦合到C臂支撑组件的C形臂架适于保持x射线源和x射线检测器。 C形臂架可相对于C形臂支撑组件围绕C形臂和枢转轴线选择性地旋转，以沿着连续的C形臂自旋轨迹移位X射线源和X射线探测器。 C臂系统适于沿着包括多个短弧和多个长弧的连续C臂自旋轨迹的数据的连续三维采集。 C臂系统适用于沿着连续C臂自旋轨迹的连续三维数据采集，以提供动态过程的连续三维成像。

    Radiation image pick-up device and image processing method
    28.
    发明授权
    Radiation image pick-up device and image processing method 有权
    辐射摄像装置及图像处理方法

    公开(公告)号：US09526467B2

    公开(公告)日：2016-12-27

    申请号：US14383291

    申请日：2013-01-25

    申请人： Hitachi Medical Corporation

    发明人： Rika Baba

    IPC分类号： G06K9/00 ,  A61B6/00 ,  G06T11/00 ,  A61B6/02 ,  A61B6/03 ,  A61B6/14

    CPC分类号： A61B6/5211 ,  A61B6/027 ,  A61B6/032 ,  A61B6/14 ,  A61B6/4441 ,  A61B6/50 ,  A61B6/5205 ,  A61B6/5258 ,  G06T11/005 ,  G06T11/006 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2211/40

    摘要： Irrespective of the layout, moving path, and moving range of the X-ray source and the detector, a highly precise image is acquired, in a similar manner as an X-ray CT scanner that is capable of acquiring a measured image using a rotation angle of 180 degrees or more. A measured image detected by the detector is converted into a rotationally measured image that is acquired by rotationally moving the X-ray source and the detector along concentric circular paths. Then, the rotationally measured image at every measurement angle is provided with a weight that gives intensity variation equivalent to that of the reconstructed image obtained from the rotationally measured images acquired by the measurement using the rotation angle range of 180 degrees, a reconstruction operation is performed, and a reconstructed image is obtained.

    摘要翻译： 不管X射线源和检测器的布局，移动路径和移动范围如何，以与能够使用旋转获取测量图像的X射线CT扫描仪相似的方式获取高精度图像 角度在180度以上。 由检测器检测到的测量图像被转换成通过沿着同心圆形路径旋转地移动X射线源和检测器而获得的旋转测量图像。 然后，在每个测量角度处的旋转测量图像被提供有赋予与通过使用180度的旋转角度范围通过测量获得的旋转测量图像获得的重建图像的强度变化相等的强度变化的权重，执行重建操作 ，并获得重建图像。

    PRODUCING PANORAMIC RADIOGRAPH
    29.
    发明申请
    PRODUCING PANORAMIC RADIOGRAPH 有权
    制作全景摄影

    公开(公告)号：US20160310097A1

    公开(公告)日：2016-10-27

    申请号：US15140360

    申请日：2016-04-27

    申请人： VATECH Co., Ltd. ,  VATECH EWOO Holdings Co., Ltd.

    发明人： Woong BAE ,  Sang Og NA

    IPC分类号： A61B6/00 ,  A61B6/14 ,  A61B6/03

    CPC分类号： A61B6/5205 ,  A61B6/027 ,  A61B6/032 ,  A61B6/14 ,  A61B6/5223

    摘要： The disclosure is related an apparatus and method for producing a panoramic radiograph of a target object using a three dimensional (3D) radiograph of the same object. The apparatus may include a communication circuit and a processor. The communication circuit may be configured to receive 3D radiograph digital data of the 3D radiograph. The processor may be configured to generate a plurality of x-ray projection images of the target object by performing forward-projection on voxels associated with the target object, and to combine the generated x-ray projection images to produce the panoramic radiograph of the target object.

    摘要翻译： 本公开涉及使用相同对象的三维（3D）射线照片来生成目标对象的全景X射线照片的装置和方法。 该装置可以包括通信电路和处理器。 通信电路可以被配置为接收3D射线照片的3D射线照片数字数据。 处理器可以被配置为通过在与目标对象相关联的体素上执行向前投影来生成目标对象的多个x射线投影图像，并且组合所生成的x射线投影图像以产生目标的全景X射线照片 目的。

    METHOD AND APPARATUS OF RESAMPLING AND AVERAGING TO OBTAIN TILTED THICK-SLICE COMPUTED TOMOGRAPHY IMAGES
    30.
    发明申请
    METHOD AND APPARATUS OF RESAMPLING AND AVERAGING TO OBTAIN TILTED THICK-SLICE COMPUTED TOMOGRAPHY IMAGES 有权
    用于获取倾斜厚度计算机图像的方法和装置

    公开(公告)号：US20160300367A1

    公开(公告)日：2016-10-13

    申请号：US14683999

    申请日：2015-04-10

    申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA MEDICAL SYSTEMS CORPORATION

    发明人： Satoru NAKANISHI

    IPC分类号： G06T11/00 ,  A61B6/00 ,  G06T7/00 ,  A61B6/03

    CPC分类号： G06T11/005 ,  A61B6/027 ,  A61B6/032 ,  A61B6/0407 ,  A61B6/5205 ,  A61B6/5223 ,  G06T11/008 ,  G06T2211/421 ,  G06T2211/424

    摘要： An apparatus and method for obtaining a thick-slice image from tilted thin-slice computed-tomography (CT) projection data. Tilted CT projection data is obtained for a series of projection planes, wherein the projection planes are parallel for all scans, and the translation direction between CT scans is not orthogonal to the projection planes (i.e., the projection planes are tilted relative to the translation direction between CT scans). Thin-slice images are reconstructed from the respective CT scans, and then grouped into thick-slice groupings. An offset results among the thin-slice images within a thick-slice grouping due to the tilt of the projection planes. This offset is compensated by interpolating and resampling the thin-slice images onto non-offset pixel grids. The interpolated and resampled thin-slice images are then averaged pixel-by-pixel to obtain thick-slice images having the same tilt angle as the thin-slice images.

    摘要翻译： 一种用于从倾斜薄片计算机断层摄影（CT）投影数据获得厚片图像的装置和方法。 对于一系列投影平面获得倾斜CT投影数据，其中投影平面对于所有扫描是平行的，并且CT扫描之间的平移方向与投影平面不正交（即，投影平面相对于平移方向倾斜 CT扫描之间）。 从相应的CT扫描重建薄切片图像，然后分组成厚切片分组。 由于投影平面的倾斜，在厚片分组内的薄片图像之间产生偏移。 通过将薄片图像内插和重新采样到非偏移像素网格上来补偿该偏移。 然后对像素逐像素进行内插和重采样的薄片图像，以获得具有与薄片图像相同的倾斜角的厚片图像。