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1. 发明专利

JP2012148143A Radiation imaging apparatus 有权
标题翻译：辐射成像装置
公开(公告)号：JP2012148143A
公开(公告)日：2012-08-09
申请号：JP2012105041
申请日：2012-05-02
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/00 , G01T7/00
摘要： PROBLEM TO BE SOLVED: To provide a radiation imaging apparatus stably obtaining a long radiation image according to a situation of a test subject.SOLUTION: When performing imaging (slot imaging) performed in a state that an irradiation visual field is narrowed down by a collimator, setting of a slot width of a prescribed distance is changed based on a subject thickness of the test subject, so that even setting of a movement velocity of an imaging system is changed based on the subject thickness of the test subject. An X-ray image can be obtained in a state that a prescribed X-ray irradiation amount is secured without depending on the body thickness of the test subject, and a rectangular X-ray image (a slot image) and the long X-ray image can be stably obtained according to the situation of the test subject.
摘要翻译：要解决的问题：提供一种根据测试对象的情况稳定地获得长辐射图像的放射线成像设备。解决方案：当在照射视野被准直器缩小的状态下执行成像（狭缝成像）时，基于受检对象的被摄体厚度改变规定距离的狭缝宽度的设定，因此基于测试对象的被摄体厚度来改变成像系统的移动速度的均匀设置。可以在不依赖于被检体的体厚的情况下确保规定的X射线照射量的状态和矩形X射线图像（狭缝图像）和长X射线可以根据测试对象的情况稳定地获得图像。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012061148A Radiographic apparatus 审中-公开
标题翻译：放映设备
公开(公告)号：JP2012061148A
公开(公告)日：2012-03-29
申请号：JP2010208167
申请日：2010-09-16
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide a radiographic apparatus, capable of acquiring a clear image from which scattered radiation is removed by a further simple structure.SOLUTION: The radiographic apparatus includes a shield 5 which moves relative to an X-ray tube 3. An original image P0 is generated while changing the position of the shadow of the shield 5. An intermediate image generation unit 11 generates a dark image P2 in which only the shadow of the shield 5 is taken and a bright image P3 in which only the part other than the shadow of the shield 5 is taken. Only a scattered radiation component is taken in the dark image P2, while the scattered radiation component is superposed on a fluoroscopic image of a subject in the bright image P3. A removal unit 15 removes the scattered radiation component superposed in the bright image P3 based on the dark image P2. According to this, the radiographic apparatus capable of acquiring a clear image from which scattered radiation is removed by a simple structure can be provided.
摘要翻译：要解决的问题：提供一种能够通过更简单的结构获取清除散射的辐射的清晰图像的放射线照相设备。解决方案：放射线照相设备包括相对于X射线管3移动的护罩5.在改变护罩5的阴影的位置的同时产生原始图像P0.中间图像产生单元11产生黑暗仅拍摄屏蔽5的阴影的图像P2和仅取出屏蔽5的阴影以外的部分的明亮图像P3。在暗图像P2中仅拍摄散射的辐射分量，而将散射的辐射分量重叠在明亮图像P3中的被摄体的透视图像上。去除单元15基于暗图像P2去除叠加在亮图像P3中的散射辐射分量。据此，可以提供能够获取通过简单结构从其中去除散射辐射的清晰图像的放射线照相设备。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010246715A Radiographic apparatus and calibration data acquiring method 有权
标题翻译：放射学设备和校准数据获取方法
公开(公告)号：JP2010246715A
公开(公告)日：2010-11-04
申请号：JP2009098886
申请日：2009-04-15
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： NOTOHARA DAISUKE , NISHINO KAZUYOSHI , SHIBATA KOICHI
IPC分类号： A61B6/00 , A61B6/02
摘要： PROBLEM TO BE SOLVED: To prevent the distribution of radiation transmission unevenness caused by a member (e.g., a top plate) at a position where the an FPD is interposed in a radiographic apparatus from being superimposed on correction data to be used to correct calibration. SOLUTION: A series of air images Pa is acquired, which is obtained by continuously shooting while moving the FPD 4 and an X-ray tube 3 in a state where a subject is not placed on the top plate 2. The air images Pa are superimposed many times when generating a correction tomographic image Pdc. In an X-ray imaging apparatus 1, even when the air images Pa are superimposed, the patterns of a shadow of the top plate 2 to be superimposed on the series of the air images Pa are different, so as to cancel the shadows of the top plate 2. Thus, the shadow of the top plate 2 does not appear in the correction tomographic image Pdc. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止由放射线照相设备中插入FPD的位置处的部件（例如，顶板）引起的辐射传播不均匀性的分布被叠加在要用于正确的校准。
解决方案：获取一系列空气图像Pa，其通过在物体未放置在顶板2上的状态下移动FPD 4和X射线管3时连续拍摄获得。空气图像当生成校正层析图像Pdc时，Pa多次叠加。在X射线摄像装置1中，即使叠加了空气图像Pa，叠加在一系列空气图像Pa上的顶板2的阴影的图案也不同，从而取消因此，顶板2的阴影不出现在校正层析图像Pdc中。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009219556A X-ray tomography apparatus 有权
标题翻译： X-RAY TOMOGRAPHY设备
公开(公告)号：JP2009219556A
公开(公告)日：2009-10-01
申请号：JP2008064844
申请日：2008-03-13
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/02 , A61B6/06
CPC分类号： A61B6/5258
摘要： PROBLEM TO BE SOLVED: To provide an X-ray tomography apparatus which easily eliminates moire generated by interference between an X-ray image pattern by an X-ray grid and an arrangement pattern of X-ray detecting elements arranged on an X-ray image receiver. SOLUTION: In the X-ray tomography apparatus, moire generated by interference between the arrangement pattern of the X-ray detecting element of a FPD 5 and the X-ray image pattern by the X-ray grid 8 and imaged on the FPD 5 is moved by moving the X-ray grid 8 using a X-ray grid moving mechanism 9 while photographing a series of X-ray fluoroscopic images. By superimposing the series of fluoroscopic images, an X-ray tomographic image is generated. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种X射线断层摄影装置，其容易地消除由X射线栅格的X射线图像图案与布置在X上的X射线检测元件的排列图案之间的干涉而产生的莫尔条纹射线图像接收器。解决方案：在X射线断层摄影装置中，通过FPD 5的X射线检测元件的排列图案与X射线栅格8的X射线图像图案之间的干涉产生的莫尔条纹，并在通过在拍摄一系列X射线透视图像的同时使用X射线栅格移动机构9移动X射线栅格8来移动FPD 5。通过叠加一系列透视图像，生成X射线断层图像。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009165705A Radiographic apparatus 审中-公开
标题翻译：放映设备
公开(公告)号：JP2009165705A
公开(公告)日：2009-07-30
申请号：JP2008008195
申请日：2008-01-17
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide radiographic apparatus capable of stably obtaining a long-sized radiation image according to the situation of a subject. SOLUTION: The set speed of movement of an imaging system is changed based on the body thickness of the subject by changing the set width of a slot, a prescribed distance, based on the body thickness of the subject in the imaging (slot imaging) performed with an irradiation visual field contracted by a collimator. An X-ray image can be obtained by securing a constant quantity of X-ray irradiation without depending on the body thickness of the subject, and a strip-shaped X-ray image (a slot image) and a long-sized X-ray image can be stably obtained according to the situation of the subject. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够根据被摄体的情况稳定地获得长尺寸的放射线图像的放射线照相设备。解决方案：基于成像（插槽）中的被摄体的身体厚度，通过改变狭缝的设定宽度，规定的距离，基于被摄体的身体厚度来改变成像系统的设定速度成像）由准直仪收缩的照射视野执行。可以通过确保X射线照射的恒定量而不依赖于被检体的体厚而获得X射线图像，并且可以获得条形X射线图像（狭缝图像）和长尺寸X射线可以根据被摄体的情况稳定地获得图像。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008043430A Method and apparatus for evaluating x-ray image 有权
标题翻译：用于评估X射线图像的方法和装置
公开(公告)号：JP2008043430A
公开(公告)日：2008-02-28
申请号：JP2006220111
申请日：2006-08-11
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI , HIRASAWA SHINYA , GOTO KEIICHI , NAKANISHI ISAO
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for evaluating an X-ray image, which enable the X-ray image to be easily evaluated by determining X-ray capture efficiency. SOLUTION: A physical quantity Vq(i) is determined by the expression: Vq(i)=äNq(i)} 2 /S(i)=[äNt(i)} 2 -äNe(i)} 2 ]/S(i). In the expression, Nq(i) represents a quantum noise, S(i) a signal of the X-lay image, Ne(i) an electric noise, and Nt(i) a general noise. As shown in the expression, Vq(i)=äNq(i)} 2 /S(i), the physical quantity Vq(i) is an index of the quantum noise Ng(i). As shown in the expression, äNq(i)} 2 /S(i)=[äNt(i)} 2 -äNe(i)} 2 ]/S(i), the respective noises can be separated from each other. This enables the physical quantity Vq(i) to be determined by separating the respective noises from each other. Since the physical quantity Vq(i) is also an index of the X-ray capture efficiency, the X-ray image can be easily evaluated by determining the X-ray capture efficiency on the basis of the physical quantity Vq(i). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于评估X射线图像的方法和装置，其能够通过确定X射线捕获效率来容易地评估X射线图像。解决方案：物理量Vq（i）由以下表达式确定：Vq（i）=äNq（i）} 2 / S（i）= [äNt（i） > 2 -ane（ⅰ）} 2 ] / S（I）。在表达式中，Nq（i）表示量子噪声，S（i）X平面图像的信号，Ne（i）电噪声和Nt（i）通用噪声。如表达式Vq（i）=äNq（i）}中所示，物理量Vq（i）是量子噪声Ng（i）的指标。如表达式中所示，äNq（i）} 2 / S（i）= [äN（i）} 2 / SP>] / S（i），各个噪声可以彼此分离。这使物理量Vq（i）能够通过将各个噪声彼此分离来确定。由于物理量Vq（i）也是X射线捕获效率的指标，因此可以通过基于物理量Vq（i）确定X射线捕获效率来容易地评估X射线图像。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007236766A X-ray photographing apparatus 审中-公开
标题翻译： X射线摄影装置
公开(公告)号：JP2007236766A
公开(公告)日：2007-09-20
申请号：JP2006065804
申请日：2006-03-10
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide an X-ray photographing apparatus which can determine a modulus depending on the body thickness of a subject to suppress a subtraction error in a dual energy subtraction image.
SOLUTION: The X-ray photographing apparatus processes a weight-allocated log subtraction for collected high-voltage image and low-voltage image by using two kinds of weight moduli as a high-voltage image modulus and a low-voltage image modulus. These weight moduli can be determined depending on the body thickness of a subject M through a console 41 to process appropriately the weight-allocated log subtraction, thereby suppressing a subtraction error in the dual energy subtraction image.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种X射线摄影装置，其可以根据被检体的体厚来确定模数，以抑制双能量减影图像中的减法误差。解决方案：X射线摄影装置通过使用两种加权模量作为高电压图像模量和低电压图像模量来处理用于采集的高压图像和低电压图像的加权分配对数减法。这些权重模量可以通过控制台41根据对象M的身体厚度来确定，以适当地处理权重分配对数减法，从而抑制双能量减影图像中的减法误差。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2010213768A Radiographic apparatus 有权
标题翻译：放映设备
公开(公告)号：JP2010213768A
公开(公告)日：2010-09-30
申请号：JP2009061077
申请日：2009-03-13
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI , MORI KAZUHIRO
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide an X-ray imaging apparatus 1 capable of obtaining a series of rectangular images while the imaging condition is preferably adjusted, with construction without the phototimer.
SOLUTION: The X-ray imaging apparatus 1 has the structure for taking rectangular images P successively. Subjects in adjacent rectangular images P in the time elapse manner are regarded as almost the same, and the imaging condition of the rectangular image P for the next imaging is decided from the rectangular image P which is photographed this time. By thus deciding the imaging condition of the rectangular image P for the next imaging from the rectangular image P photographed this time, and obtaining and joining the series of rectangular images P, the X-ray imaging apparatus 1 can be provided where the subject is photographed with a pixel distribution suitable for diagnosis.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够获得一系列矩形图像的X射线成像装置1，而在没有光速度计的情况下，优选调整成像条件。解决方案：X射线成像装置1具有连续取矩形图像P的结构。以时间流逝的方式将相邻矩形图像P中的被摄体视为几乎相同，并且从此次拍摄的矩形图像P确定用于下一次成像的矩形图像P的成像条件。由此，通过从此次拍摄的矩形图像P判定用于下一次成像的矩形图像P的成像条件，并且获得并接合一系列矩形图像P，可以在拍摄对象的地方设置X射线摄像装置1 具有适合于诊断的像素分布。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009160100A Image processor and radiographic equipment 审中-公开
标题翻译：图像处理器和放射性设备
公开(公告)号：JP2009160100A
公开(公告)日：2009-07-23
申请号：JP2007340578
申请日：2007-12-28
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide an image processor and radiographic equipment correcting rib artifacts of several pixels unavoidably generated on an energy subtraction image even by a respiration-synchronized imaging.
SOLUTION: This image processor includes: a region extraction section 23 extracting a region of interest including pixels of interest on a low-energy image edge-detected by an edge detection section 22 and extracting a region including corresponding pixels located at a corresponding position to the pixels of interest as a corresponding region on a high-energy image edge-detected by the edge detection section 22; a displaced pixel detection section 25 for detecting displaced pixels out of the pixels included in the corresponding region extracted on the high-energy image; a pixel displacement calculation section 27 for calculating a displacement between the pixels of interest and the displaced pixels; a pixel moving section 29 for moving the displaced pixels to the corresponding pixels located at the corresponding position with respect to the pixels of interest based on the displacement calculated, and a pixel moved image storage section 31 storing the moved pixels and non-moved pixels.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供图像处理器和放射线照相设备，即使通过呼吸同步成像也能够在能量减影图像上不可避免地产生的几个像素的肋伪影进行校正。解决方案：该图像处理器包括：区域提取部分23，在由边缘检测部分22检测到的低能量图像边缘上提取包括感兴趣像素的感兴趣区域，并且提取包括位于相应的对应像素的区域位于由边缘检测部分22检测的高能图像边缘上的对应区域的感兴趣像素; 移位像素检测部分25，用于检测包括在高能量图像上提取的对应区域中的像素中的移位像素; 用于计算感兴趣像素和移位像素之间的位移的像素位移计算部分27; 像素移动部分29，用于基于所计算的位移将移位的像素移动到位于相关于相关像素的对应位置的相应像素;以及像素移动图像存储部分31，存储移动的像素和非移动像素。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2007275228A X-ray imaging device 有权
标题翻译： X射线成像装置
公开(公告)号：JP2007275228A
公开(公告)日：2007-10-25
申请号：JP2006104176
申请日：2006-04-05
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI , MORI KAZUHIRO , NOTOHARA DAISUKE , SAKAGUCHI NOBUYASU
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To sufficiently and properly suppress density unevenness of an elongate x-ray image. SOLUTION: A DC component detection part 15 detects a DC component which becomes an index showing the average brightness of a slot-like X-ray image constructing the longitudinal x-ray image, and a DC component equalizing part 16 equalizes the levels of the DC component of all the slot-like X-ray images, so that difference of the average brightness of images between the slot like X-ray images forming the elongate x-ray image PA is reduced in advance. As the result, the density unevenness of the elongated x-ray image which is obtained by connecting the slot-like X-ray images on a longer edge side by an elongate x-ray image obtaining part 17 is suppressed sufficiently without expanding an overlapping area where the ends of the slot-like x-ray images are overlapped with each other. Thus, the density unevenness of the elongate x-ray image can be suppressed sufficiently and properly. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了充分且适当地抑制细长x射线图像的浓度不均匀性。解决方案：直流分量检测部分15检测成为构成纵向X射线图像的狭缝状X射线图像的平均亮度的指标的直流分量，直流分量均衡部16使水平的所有狭缝状X射线图像的DC分量，使得像形成细长X射线图像PA的X射线图像之间的像素之间的图像的平均亮度的差异预先减小。结果，通过细长X射线图像获得部17连接长边缘侧的狭缝状X射线图像而获得的细长x射线图像的浓度不均匀性被充分抑制，而不会扩大重叠面积其中狭缝状X射线图像的端部彼此重叠。因此，可以充分且适当地抑制细长x射线图像的浓度不均匀性。版权所有（C）2008，JPO＆INPIT

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