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1. 发明授权

US5666395A X-ray diagnostic apparatus 失效
标题翻译： X光诊断仪
公开(公告)号：US5666395A
公开(公告)日：1997-09-09
申请号：US715086
申请日：1996-09-17
申请人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
发明人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
IPC分类号： A61B6/00 , A61N5/10 , G01T1/29 , G21K1/02 , G21K1/00
CPC分类号： G01T1/2928 , A61B6/5258 , A61N5/103 , G21K1/025
摘要： It is an object of the invention to provide an X-ray diagnosis apparatus having an X-ray plane detector capable of removing the influence of a scattered X-ray by using a grid and also preventing a Moire image. An X-ray image transmitted through a target object is sensed by a plane detector in units of pixels which are two-dimensionally arranged at a predetermined pitch. A scattered X-ray incident on the plane detector is removed by a scattered ray removing grid having plate-like X-ray shielding members and arranged on an X-ray incident side of the plane detector. The X-ray shielding members are arranged such that an X-ray shielding pattern on the X-ray incident surface of the plane detector has a pitch corresponding to an integer fraction of the arrangement pitch of the pixels. When a steady positional relationship is kept between the pitch of the X-ray detection elements and the period of the fringe pattern of the X-ray which is shielded by the grid, a Moire image can be prevented.
摘要翻译：本发明的目的是提供一种具有X射线平面检测器的X射线诊断装置，该X射线平面检测器能够通过使用网格去除散射X射线的影响，并且还防止Moir + E，acu + EE图像。通过目标物体发射的X射线图像由平面检测器以以预定间距二维排列的像素为单位感测。通过具有板状X射线屏蔽部件的散射射线去除栅极去除入射在平面检测器上的散射X射线，并布置在平面检测器的X射线入射侧。 X射线屏蔽构件被布置成使得平面检测器的X射线入射表面上的X射线屏蔽图案具有对应于像素的排列间距的整数分数的间距。当在X射线检测元件的间距与由栅格屏蔽的X射线的条纹图案的周期之间保持稳定的位置关系时，可以防止Moir + E，acu + EE图像。

2. 发明授权

US5818898A X-ray imaging apparatus using X-ray planar detector 失效
标题翻译： X射线成像装置使用X射线平面检测器
公开(公告)号：US5818898A
公开(公告)日：1998-10-06
申请号：US744937
申请日：1996-11-06
申请人： Akira Tsukamoto , Masayuki Nishiki , Seiichiro Nagai , Koichiro Nabuchi , Tohru Saisu , Shin-ichi Yamada , Takayuki Tomisaki , Manabu Tanaka
发明人： Akira Tsukamoto , Masayuki Nishiki , Seiichiro Nagai , Koichiro Nabuchi , Tohru Saisu , Shin-ichi Yamada , Takayuki Tomisaki , Manabu Tanaka
IPC分类号： H04N5/32 , A61B6/03
CPC分类号： H04N5/361 , H04N5/32
摘要： An X-ray imaging apparatus comprises an X-ray emission unit for emitting X-rays onto a human body under examination, an X-ray emission control unit for outputting an X-ray emission signal to direct the X-ray emission unit to emit X-rays, a flat panel X-ray detector having a two-dimensional array of detector elements in rows (lines) and columns, each of the detector elements converting incident X-rays passed through the human body under examination into an electric charge signal and storing it, a resetting unit for placing each line of the detector elements in the readout state in sequence, thereby discharging electric charge stored on each of the detector elements, a storage unit for placing all the lines of the detector elements in the readout state to thereby allow each of the detector elements to store an electric charge signal, and a readout unit for placing each line of the detector elements in the readout state in sequence to thereby read an electric charge signal from each of the detector elements.
摘要翻译：一种X射线成像装置，包括：X射线发射单元，用于将X射线发射到被检查的人体上; X射线发射控制单元，用于输出X射线发射信号以引导X射线发射单元发射 X射线，具有行（行）和列的检测器元件的二维阵列的平板X射线检测器，每个检测器元件将经检查的人体的入射X射线转换为电荷信号并将其存储起来;复位单元，用于将检测器元件的每一行依次放置在读出状态，从而放电存储在每个检测器元件上的电荷;存储单元，用于将检测器元件的所有线放置在读出状态从而允许每个检测器元件存储电荷信号，以及读取单元，用于依次将放置检测器元件的每一行放置在读出状态，从而读取每个检测器元件的电荷信号 e检测器元件。

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