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11. 发明授权

US5353325A X-ray fluorograph and radiograph apparatus for obtaining X-ray image having high X-ray latitude 失效
标题翻译：用于获得具有高X射线纬度的X射线图像的X射线透视图和X射线照相装置
公开(公告)号：US5353325A
公开(公告)日：1994-10-04
申请号：US983058
申请日：1992-11-30
申请人： Ken Ueda , Hisatake Yokouchi , Keiji Umetani , Yoichi Onodera
发明人： Ken Ueda , Hisatake Yokouchi , Keiji Umetani , Yoichi Onodera
IPC分类号： A61B6/00 , H01J31/50 , H05G1/60 , H05G1/64
CPC分类号： H01J31/50 , H05G1/60 , H01J2231/50036 , H01J2231/50063 , H01J2231/5013
摘要： An X-ray fluorograph and radiograph apparatus including an X-ray television camera having an avalanche multiplication operation type image pick-up tube having an input/output characteristic in which increment of an output reduces gradually against increase of dose of incident X-rays and a unit for setting X-ray latitude and a multiplication factor of an image pick-up tube to optimum values for inputted radiograph conditions by controlling a voltage value applied to the image pick-up tube and a value of a stop of an optical system, and making it possible to obtain X-ray latitude at 1,000 or more.
摘要翻译：一种X射线荧光照相机和X射线照相机，其特征在于，包括具有雪崩倍增运算型摄像管的X射线照相机，X射线照相机具有输入/输出特性，其中输出增量随着入射X射线剂量的增加而逐渐降低，用于通过控制施加到摄像管的电压值和光学系统的停止值来设置X射线纬度和摄像管的倍增系数以获得输入的摄影条件的最佳值的单元，并且可以获得1,000以上的X射线纬度。

12. 发明授权

US4945552A Imaging system for obtaining X-ray energy subtraction images 失效
标题翻译：用于获得X射线能量减影图像的成像系统
公开(公告)号：US4945552A
公开(公告)日：1990-07-31
申请号：US277987
申请日：1988-11-30
申请人： Ken Ueda , Keiji Umetani , Yoshio Suzuki
发明人： Ken Ueda , Keiji Umetani , Yoshio Suzuki
IPC分类号： G01T1/36
CPC分类号： G01T1/36
摘要： An energy subtraction image measuring system for selectively depicting any target element using X-rays includes an X-ray filter containing the target element. It measures an X-ray image by using a quasi-monoenergetic X-ray beam obtained without using the filter and having a photon energy range that extends above and below the absorption edge of the target element, as well as an X-ray image using an X-ray beam containing only the photon energy component having photon energy levels lower than the absorption edge which is obtained by using the filter. The energy subtraction image measuring system then generates an energy substraction image by the operation of the thus obtained data.
摘要翻译：用于使用X射线选择性地描绘任何目标元件的能量减影图像测量系统包括包含目标元件的X射线滤光器。它通过使用获得的准单能X射线束来测量X射线图像，而不使用滤光器并具有在目标元件的吸收边缘上方和下方延伸的光子能量范围，以及使用仅含有光子能量级别低于通过使用滤波器获得的吸收边缘的光子能量的X射线束。能量减影图像测量系统然后通过这样获得的数据的操作产生能量减影图像。

13. 发明申请

US20050063507A1 X-ray measuring apparatus 失效
标题翻译： X射线测量装置
公开(公告)号：US20050063507A1
公开(公告)日：2005-03-24
申请号：US10942892
申请日：2004-09-17
申请人： Rika Baba , Ken Ueda , Masakazu Okabe
发明人： Rika Baba , Ken Ueda , Masakazu Okabe
IPC分类号： A61B6/03 , G01N23/04 , G06T11/00 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/466 , A61B6/032 , G01N23/04 , G06T11/005
摘要： An x-ray measuring apparatus comprises an x-ray source, an x-ray detector, a rotating device, and a processor. The x-ray source generates x-rays to be emitted to a subject. The x-ray detector detects measurement data regarding the subject. The rotating device changes a relative position of the x-ray source and the x-ray detector with respect to the subject. The processor executes an arithmetic operation for the measurement data. The x-ray detector is shifted by a distance shorter than half the length of the x-ray detector along a line parallel to the plane of rotation, in a tangential direction of the plane of rotation generated by the x-ray source 201. The processor executes a process for obtaining projection data by executing a logarithmic converting process for the measurement data, a process for multiplying a value of the projection data by a weight, and a process for obtaining reconstructed data by executing a reconstructing process using the data after being multiplied by the weight, thereby obtaining a three-dimensional reconstructed image.
摘要翻译： X射线测量装置包括x射线源，X射线检测器，旋转装置和处理器。 x射线源产生要发射到被摄体的X射线。 X射线检测器检测关于被摄体的测量数据。旋转装置相对于被摄体改变x射线源和X射线检测器的相对位置。处理器执行测量数据的算术运算。 X射线检测器沿着X射线源201的旋转平面的切线方向沿平行于旋转平面的线偏移X射线探测器的长度的一半的距离。处理器通过执行用于测量数据的对数转换处理来执行获取投影数据的处理，用于将投影数据的值乘以权重的处理以及通过执行使用该数据之后的数据的重建处理来获得重建数据的处理乘以权重，从而获得三维重建图像。

14. 发明授权

US06418186B1 X-ray image pickup device 失效
标题翻译： X射线摄像装置
公开(公告)号：US06418186B1
公开(公告)日：2002-07-09
申请号：US09601219
申请日：2000-07-28
申请人： Hiroyuki Kawai , Ken Ueda
发明人： Hiroyuki Kawai , Ken Ueda
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/027 , A61B6/583 , Y10S378/901
摘要： In an X-ray imaging apparatus in which X-ray beams are irradiated on a subject (4) and a tomogram of the subject is reconstructed from helically scanned X-ray images and displayed, reconstructing means (101) includes selecting means (105) for selecting, from X-ray images measured from the 360° periphery of the subject at a cross-sectional position specified by an inspector, X-ray images measured within a range of −360° to +360° distant from a rotation angle of an imaging system at the cross-sectional position, filter operation means (102) for applying a filtering process to the selected X-ray images, interpolation operation means (103) for interpolating projection values of X-ray images in respect of individual pixels at the cross-sectional position from distances in the moving direction of moving means (5, 6) between positions of images selected by an operation unit and the cross-sectional position specified by the inspector and the X-ray images, and inverse projection operation means (104) for reconstructing a tomogram at the cross-sectional position from an interpolated image, and the obtained tomogram is displayed on display means (9).
摘要翻译：在将X射线束照射在被检体（4）上并从螺旋扫描的X射线图像重构对象的断层图像并进行显示的X射线摄像装置中，重建装置（101）包括选择装置（105）用于从在检查员指定的横截面位置处从受检者的360°周边测量的X射线图像中选择在远离旋转角度的-360°至+ 360°的范围内测量的X射线图像在截面位置处的成像系统，用于对所选择的X射线图像应用滤波处理的滤波器操作装置（102）;插值操作装置（103），用于内插关于各个像素的X射线图像的投影值在由操作单元选择的图像的位置与由检查者指定的横截面位置和X射线图像之间的移动装置（5,6）的移动方向上的距离的横截面位置以及反投影操作我（104），用于在内插图像的横截面位置处重构断层图像，并且所获得的断层图像显示在显示装置（9）上。

15. 发明授权

US06377656B1 X-ray control method and x-ray apparatus 有权
标题翻译： X射线控制方法和X射线装置
公开(公告)号：US06377656B1
公开(公告)日：2002-04-23
申请号：US09423241
申请日：1999-11-05
申请人： Hironori Ueki , Ken Ueda , Akira Kuba
发明人： Hironori Ueki , Ken Ueda , Akira Kuba
IPC分类号： H05G164
CPC分类号： A61B6/4225 , A61B6/06 , A61B6/469 , A61B6/488 , A61B6/548 , A61B6/583 , H05G1/30
摘要： An X-ray apparatus in which a mean value of a weighted histogram obtained by multiplying a histogram of numbers of data corresponding to image intensities in a reference image which is an X-ray image picked up in an X-ray fluoroscopy mode and a weighting function whose variable depends on the image intensities is arithmetically determined for controlling an output power of an X-ray tube so that the mean value of the integrated histogram approaches a predetermined value.
摘要翻译：一种X射线装置，其中通过将作为X射线透视模式拾取的X射线图像的参考图像中的与图像强度对应的数据的直方图相乘的加权直方图的平均值，其变量取决于图像强度的函数被算术地确定用于控制X射线管的输出功率，使得积分直方图的平均值接近预定值。

16. 发明授权

US5949811A X-ray apparatus 失效
标题翻译： X光装置
公开(公告)号：US5949811A
公开(公告)日：1999-09-07
申请号：US947156
申请日：1997-10-08
申请人： Rika Baba , Ken Ueda , Hironori Ueki , Akira Kuba , Ken Ishikawa , Takashi Ishiguro
发明人： Rika Baba , Ken Ueda , Hironori Ueki , Akira Kuba , Ken Ishikawa , Takashi Ishiguro
IPC分类号： A61B6/02 , H05G1/42 , A61B6/00
CPC分类号： A61B6/4225 , A61B6/542 , A61B6/548 , H05G1/42 , A61B6/4291
摘要： An X-ray apparatus acquires an X-ray image of an object by radiating X-rays to the object and includes an X-ray radiator for radiating X-rays to an object. An imager acquires an X-ray image of the object and radiation dose controller controls the radiation dose so as to acquire an X-ray image having a predetermined X-ray relative noise level on the basis of an image level of a predetermined area in the X-ray image.
摘要翻译： X射线装置通过对物体照射X射线来获取物体的X射线图像，并且包括用于向物体照射X射线的X射线辐射器。成像器获取对象的X射线图像，并且辐射剂量控制器控制辐射剂量，以便基于图像中的预定区域的图像水平获取具有预定X射线相对噪声水平的X射线图像 X射线图像。

17. 发明授权

US5880470A Two-dimensional radiation image detector 失效
标题翻译：二维辐射图像检测器
公开(公告)号：US5880470A
公开(公告)日：1999-03-09
申请号：US643746
申请日：1996-05-06
申请人： Keiji Umetani , Ken Ueda , Tetsurou Minemura , Kazutaka Tsuji , Koichi Koike
发明人： Keiji Umetani , Ken Ueda , Tetsurou Minemura , Kazutaka Tsuji , Koichi Koike
IPC分类号： G01T1/20 , G01T1/24 , G03B42/02 , H01L27/146 , H04N5/32 , G21K4/00
CPC分类号： G01T1/2018
摘要： A 2-dimensional radiation image detector wherein a plurality of conversion elements for converting a radiation into visible light and a plurality of photo-sensitive elements for detecting the visible light and accumulating signals are formed an elements board includes two elements boards arranged in an overlapping relationship with each other and each having the plurality of photo-sensitive elements arranged two-dimensionally thereon such that the distance between centers of the photo-sensitive elements in one direction of the arrangement is substantially equal to a width of the photo-sensitive elements while the distance between the centers of the photo-sensitive elements in a direction perpendicular to the one direction is substantially equal to twice the width of the photo-sensitive elements and such that that portion of a radiation directed upon the two overlapping elements boards which has passed through a first one of the elements boards other than locations of the photo-sensitive elements is detected by the photo-sensitive elements of the second elements board.
摘要翻译：一种二维放射线图像检测器，其中用于将辐射转换成可见光的多个转换元件和用于检测可见光和累积信号的多个光敏元件形成为元件板，包括以重叠关系布置的两个元件板彼此之间并且每个具有多个光敏元件，其二维地布置在其上，使得光敏元件的中心之间在该布置的一个方向上的距离基本上等于光敏元件的宽度，而光敏元件在与一个方向垂直的方向上的中心之间的距离基本上等于光敏元件宽度的两倍，并且使得照射到已经通过的两个重叠元件板的辐射部分除了照片敏感度位置之外的第一个要素板 e元件由第二元件板的光敏元件检测。

18. 发明授权

US5402463A Apparatus and method for radiation imaging 失效
标题翻译：辐射成像装置和方法
公开(公告)号：US5402463A
公开(公告)日：1995-03-28
申请号：US109075
申请日：1993-08-19
申请人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
IPC分类号： A61B6/00 , H04N5/32 , H04N7/18 , H05G1/60
CPC分类号： H04N7/18 , H04N5/32 , H05G1/60
摘要： An X-ray imaging apparatus is constructed with a combination of an X-ray image intensifier, a relay optical system, and a video camera with avalanche multiplication camera tube. The video camera is controlled by an image acquisition circuit, a synchronizing signal generation circuit, and an applying voltage control circuit. The applying voltage control circuit for controlling the voltage to be applied to the video camera with avalanche multiplication camera tube controls the applying voltage on the basis of image data in an image memory so that the gray scale level of a detected visible image is corrected.
摘要翻译： X射线成像装置由X射线图像增强器，中继光学系统和具有雪崩倍增照相机管的摄像机的组合构成。摄像机由图像采集电路，同步信号发生电路和施加电压控制电路控制。用于控制施加到具有雪崩倍增照相机的摄像机的电压的施加电压控制电路基于图像存储器中的图像数据来控制施加电压，从而校正检测到的可见图像的灰度级。

19. 发明授权

US4890310A Spectral type radiation imaging system 失效
标题翻译：光谱辐射成像系统
公开(公告)号：US4890310A
公开(公告)日：1989-12-26
申请号：US106345
申请日：1987-10-09
申请人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
IPC分类号： A61B6/00 , A61B6/03 , G01T1/36 , G03B42/02 , H05G1/60
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4092 , G01T1/36 , H05G1/60
摘要： An x-ray having the energy bandwidth which extends between above and below the absorption edge energy of an element constituting a contrast agent is emitted from an x-ray source as an x-ray to be projected to an object, the x-ray at the higher energy component than the absorption energy of the contrast-agent constituting element is detected by one x-ray detector, the x-ray, having been transmitted through the one x-ray detector, at the lower energy component than the absorption edge energy of the contrast agent constituting element is detected by another x-ray detector, and a subtraction image is obtained by processing the image data from both detectors.
摘要翻译：从构成造影剂的元件的吸收边缘能量的上方和下方延伸的能量带宽的x射线作为x射线从X射线源发射以投影到物体，X射线在通过一个X射线检测器来检测比造影剂构成元件的吸收能量更高的能量分量，x射线已经通过一个x射线检测器以比吸收边缘能量更低的能量分量由另一X射线检测器检测造影剂构成元件，并且通过从两个检测器处理图像数据来获得减影图像。

20. 发明授权

US4575868A Positron computed tomograph device 失效
标题翻译：正电子计算机断层摄影装置
公开(公告)号：US4575868A
公开(公告)日：1986-03-11
申请号：US530545
申请日：1983-09-09
申请人： Ken Ueda , Kenichi Okajima , Katsumi Takami
发明人： Ken Ueda , Kenichi Okajima , Katsumi Takami
IPC分类号： G01T1/161 , G01T1/172 , G01T1/29 , G01T1/20
CPC分类号： G01T1/2985 , A61B6/037 , Y10S378/901
摘要： A positron-computed tomograph device is enabled to suppress the noise component of data for attenuation correction by continuing measurement of the relative angle between a gamma ray source for attenuation correction and detector pair out of a plurality of detectors thereby determining whether or not, at a given moment, the gamma ray source is present within the zone of measurement allocated for a specific detector pair which has detected coincidence and, when the determination ascertains that the source is not present in the aforementioned zone of measurement, avoiding measurement of coincidence or preventing data on coincidence from being stored in a memory.
摘要翻译：正电子计算机断层摄影装置能够通过继续测量用于衰减校正的伽马射线源和多个检测器中的检测器对之间的相对角度来抑制用于衰减校正的数据的噪声分量，从而确定在一个在给定的时刻，伽马射线源存在于为检测到一致的特定检测器对分配的测量区域内，并且当确定确定源不存在于上述测量区域中时，避免测量一致或阻止数据巧合从存储在内存中。

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