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    • 3. 发明申请
    • X-ray CT IMAGING APPARATUS
    • X射线CT成像装置
    • US20100246755A1
    • 2010-09-30
    • US12734656
    • 2008-11-14
    • Masakazu SuzukiTakahiro YoshimuraMakoto Honjo
    • Masakazu SuzukiTakahiro YoshimuraMakoto Honjo
    • A61B6/03
    • A61B6/587A61B6/032A61B6/14A61B6/4441
    • In an X-ray CT imaging, an X-ray generator (11) and a two-dimensional X-ray detector (21) are opposed to each other between an object and are rotated by a rotary shaft (32) around the object. At least one of the rotary shaft supporter (61) and an object holder (40) includes a movement mechanism (42, 65) for moving a supporter (30) for the X-ray generator and the X-ray detector relative to the object. In offset scan CT imaging, the rotation of the supporter by the rotary shaft is performed simultaneously with the relative two-dimensional movement of the rotary shaft by the movement mechanism. In the relative two-dimensional movement, the position of the rotary shaft is moved according to the rotary angle of the supporter along a circular orbit around the center of a CT imaging region in a plane crossing the rotary shaft. Thus, it becomes possible to image a larger region of interest of the object.
    • 在X射线CT成像中,X射线发生器(11)和二维X射线检测器(21)在物体之间彼此相对,并且通过旋转轴(32)围绕物体旋转。 旋转轴支撑件(61)和物体保持器(40)中的至少一个包括用于移动用于X射线发生器的支撑件(30)和相对于物体的X射线检测器的移动机构(42,65) 。 在偏移扫描CT成像中,旋转轴的支撑件的旋转与通过移动机构的旋转轴的相对二维运动同时进行。 在相对的二维运动中,旋转轴的位置沿着与旋转轴相交叉的平面中的CT成像区域的中心周围的圆形轨道的支撑体的旋转角度移动。 因此,可以对较大的对象区域进行成像。
    • 5. 发明授权
    • Two dimensional image production method and system using solid-state image sensing device
    • 二维图像制作方法及系统采用固态摄像装置
    • US07247861B2
    • 2007-07-24
    • US11119516
    • 2005-04-28
    • Masakazu SuzukiTakahiro YoshimuraTakeshi HayashiMakoto Honjo
    • Masakazu SuzukiTakahiro YoshimuraTakeshi HayashiMakoto Honjo
    • G01T1/20
    • H04N5/32A61B6/548H01L27/14658H04N5/361H04N5/37206
    • A two dimensional image production method by using a solid-state image sensing device, wherein the solid-state sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure is stored as charge signals, and a dark current measuring part where a dark current is stored without receiving exposure. The method comprising the steps of: preparing and storing in advance the output ratio data for a fixed exposure time between dark current component of each pixel element or each pixel element column in the picture element producing part and that of a specified pixel element or a specified pixel element column in the dark current measuring part, and producing sequentially pixel datum removed a dark current component while performing radiography, by executing a predetermined arithmetic operation for the signals of the electric charges outputted from the picture element producing part depending on the output ratio data.
    • 一种使用固态摄像装置的二维图像制作方法,其中,所述固态感测装置包括:图像元素产生部,其中,当接收到曝光时通过光电转换产生的电荷被作为电荷信号存储;以及 暗电流测量部分,其中存储暗电流而不接收曝光。 该方法包括以下步骤:在图像元素产生部分中的每个像素元素或每个像素元素列的暗电流分量与指定的像素元素或指定像素元素列的暗电流分量之间的固定曝光时间预先准备并存储输出比数据 像素元素列,并且通过对从图像元素产生部分输出的电荷的信号根据输出比率数据执行预定的算术运算,在执行放射线照相时产生顺序的像素数据去除暗电流分量 。
    • 7. 发明授权
    • Medical X-ray apparatus
    • 医用X光装置
    • US08588364B2
    • 2013-11-19
    • US12806694
    • 2010-08-19
    • Masakazu SuzukiHideki YoshikawaTakahiro YoshimuraMakoto Honjo
    • Masakazu SuzukiHideki YoshikawaTakahiro YoshimuraMakoto Honjo
    • A61B6/14
    • A61B6/14A61B6/4233A61B6/469
    • A medical X-ray apparatus comprising a supporting part for supporting an X-ray generator and a two-dimensional X-ray detector while interposing an object to be examined therebetween, a radiation area restricting part for restricting a radiation area of X-ray generated from the X-ray generator, and a scan driving part for scanning the object with the X-ray restricted by the radiation area restricting part as X-ray beam and for executing radiography. A direction intersecting with X-ray scan direction is defined as a height direction, the apparatus further comprises a radiation area setting part for setting at least one of both ends of width of the X-ray beam in the height direction at a desired position in accordance with the position of an interested area of the object; and the X-ray beam is irradiated only to the radiation area as set by the radiation area setting part with its beam width in height direction restricted by the radiation area restricting part.
    • 一种医用X射线设备,包括:用于支撑X射线发生器的支撑部件和二维X射线检测器,同时插入待检测物体;辐射区域限制部件,用于限制产生的X射线的辐射面积; 以及扫描驱动部件,用于利用被辐射区域限制部分限制的X射线作为X射线束扫描物体并执行射线照相。 将与X射线扫描方向相交的方向定义为高度方向,该装置还包括用于将X射线束的宽度的两端的高度方向的两端中的至少一端的高度方向上的至少一方设置在期望位置的放射线区域设定部 按照物体的感兴趣区域的位置; 并且X射线束仅照射由辐射区域设定部分设定的辐射区域,其宽度在高度方向上被辐射区域限制部分限制。
    • 8. 发明申请
    • Medical X-ray apparatus
    • 医用X光装置
    • US20110064188A1
    • 2011-03-17
    • US12806694
    • 2010-08-19
    • Masakazu SuzukiHideki YoshikawaTakahiro YoshimuraMakoto Honjo
    • Masakazu SuzukiHideki YoshikawaTakahiro YoshimuraMakoto Honjo
    • A61B6/14G01N23/04A61B6/00
    • A61B6/14A61B6/4233A61B6/469
    • A medical X-ray apparatus comprising a supporting part for supporting an X-ray generator and a two-dimensional X-ray detector while interposing an object to be examined therebetween, a radiation area restricting part for restricting a radiation area of X-ray generated from the X-ray generator, and a scan driving part for scanning the object with the X-ray restricted by the radiation area restricting part as X-ray beam and for executing radiography. A direction intersecting with X-ray scan direction is defined as a height direction, the apparatus further comprises a radiation area setting part for setting at least one of both ends of width of the X-ray beam in the height direction at a desired position in accordance with the position of an interested area of the object; and the X-ray beam is irradiated only to the radiation area as set by the radiation area setting part with its beam width in height direction restricted by the radiation area restricting part.
    • 一种医用X射线设备,包括:用于支撑X射线发生器的支撑部件和二维X射线检测器,同时插入待检测物体;辐射区域限制部件,用于限制产生的X射线的辐射面积; 以及扫描驱动部件,用于利用被辐射区域限制部分限制的X射线作为X射线束扫描物体并执行射线照相。 将与X射线扫描方向相交的方向定义为高度方向,该装置还包括用于将X射线束的宽度的两端的高度方向的两端中的至少一端的高度方向上的至少一方设置在期望位置的放射线区域设定部 按照物体的感兴趣区域的位置; 并且X射线束仅照射由辐射区域设定部分设定的辐射区域,其宽度在高度方向上被辐射区域限制部分限制。
    • 9. 发明授权
    • X-ray CT imaging apparatus
    • X射线CT成像装置
    • US08300762B2
    • 2012-10-30
    • US12734656
    • 2008-11-14
    • Masakazu SuzukiTakahiro YoshimuraMakoto Honjo
    • Masakazu SuzukiTakahiro YoshimuraMakoto Honjo
    • A61B6/14G01N23/083H05G1/60H05G1/02
    • A61B6/587A61B6/032A61B6/14A61B6/4441
    • In an X-ray CT imaging, an X-ray generator (11) and a two-dimensional X-ray detector (21) are opposed to each other between an object and are rotated by a rotary shaft (32) around the object. At least one of the rotary shaft supporter (61) and an object holder (40) includes a movement mechanism (42, 65) for moving a supporter (30) for the X-ray generator and the X-ray detector relative to the object. In offset scan CT imaging, the rotation of the supporter by the rotary shaft is performed simultaneously with the relative two-dimensional movement of the rotary shaft by the movement mechanism. In the relative two-dimensional movement, the position of the rotary shaft is moved according to the rotary angle of the supporter along a circular orbit around the center of a CT imaging region in a plane crossing the rotary shaft. Thus, it becomes possible to image a larger region of interest of the object.
    • 在X射线CT成像中,X射线发生器(11)和二维X射线检测器(21)在物体之间彼此相对,并且通过旋转轴(32)围绕物体旋转。 旋转轴支撑件(61)和物体保持器(40)中的至少一个包括用于移动用于X射线发生器的支撑件(30)和相对于物体的X射线检测器的移动机构(42,65) 。 在偏移扫描CT成像中,旋转轴的支撑件的旋转与通过移动机构的旋转轴的相对二维运动同时进行。 在相对的二维运动中,旋转轴的位置沿着与旋转轴相交叉的平面中的CT成像区域的中心周围的圆形轨道的支撑体的旋转角度移动。 因此,可以对较大的对象区域进行成像。