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。

公开(公告)号：US06381299B1

公开(公告)日：2002-04-30

申请号：US09555904

申请日：2000-06-05

申请人： Rika Baba ,  Ken Ueda ,  Hiroyuki Kawai ,  Hironori Ueki ,  Koichi Koike ,  Akira Kuba ,  Nobuhisa Kasagima

发明人： Rika Baba ,  Ken Ueda ,  Hiroyuki Kawai ,  Hironori Ueki ,  Koichi Koike ,  Akira Kuba ,  Nobuhisa Kasagima

IPC分类号： G01N2300

CPC分类号： A61B6/0457 ,  A61B6/032

摘要： Between an X-ray generating system and an X-ray image detecting system arranged opposite to the X-ray generating system, an examination object supporting system is arranged and contains a straight movement table provided on a rotary table supported by a rotary table supporting member, and an examination object supporting member for supporting the examination object under either a standing position or a sitting position on the straight movement table. While the examination object is rotated by the rotary table, the examination object is continuously moved (reciprocating movement) by the straight movement table along a direction parallel to the rotation plane, and X-ray images of the examination object are acquired along a plurality of directions during both the rotating operation and the moving operation. As a result, both an X-ray tomographic image and a three-dimensional image (stereoscopic image) of a wider area than a viewing field of an X-ray I.I. can be acquired. Since the viewing fields of the X-ray tomographic image and of the 3-dimensional image can be employed, both diagnostic performance and also a diagnostic efficiency with respect to a large organ such as a lung can be improved.

摘要翻译： 在与X射线产生系统相对设置的X射线产生系统和X射线图像检测系统之间，配置有检查对象支撑系统，并且包括设置在由旋转台支撑构件支撑的旋转台上的直动移动台 以及检查对象支撑构件，用于在直立移动台上的站立位置或坐姿下支撑检查对象。 当检查对象被旋转台旋转时，检查对象通过直线移动台沿着与旋转平面平行的方向连续移动（往复运动），并且检查对象的X射线图像沿着多个 在旋转操作和移动操作期间的方向。 结果，X射线断层图像和比X射线I.I的视场更宽区域的三维图像（立体图像）都是。 可以获得。 由于可以使用X射线断层图像和3D图像的视野，因此可以提高诊断性能以及相对于诸如肺的大器官的诊断效率。

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。