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41. 发明专利

JPS61252779A DSA DEVICE 失效
公开(公告)号：JPS61252779A
公开(公告)日：1986-11-10
申请号：JP9319085
申请日：1985-04-30
申请人： SHIMADZU CORP
发明人： SHIBATA KOICHI
IPC分类号： H04N7/18 , A61B6/00
摘要： PURPOSE:To obtain a picture suitable for dynamic analysis by obtaining a periodical peak hold DSA image representing a progress on the way of a contrast medium in flowing and a main peak hold DSA image representing a whole locus of the contrast medium equal to an ordinary peak hold DSA image. CONSTITUTION:In the case of a live image, memories 3, 4 are periodically reset in a fixed period by a controller 5. A peak hold DSA image obtained by subtracting the picture stored in the memories 3, 4 in a subtraction circuit 6 becomes a periodical peak hold DSA image. Namely, in a period 1, the contrast medium does not reach to a photographing section, from a period 2, starts to enter and at a period 6 reaches to an end of the photographing section. The live image indicates the contrast medium at that period. Thereby, since the periodical peak hold DSA image is subtraction image between the peak hold images within the respective periods, it indicates a change in the period and by this periodical peak hold DSA image, a dynamic analysis can be executed.

42. 发明专利

JP2012254191A Radiographic apparatus 审中-公开
标题翻译：放映设备
公开(公告)号：JP2012254191A
公开(公告)日：2012-12-27
申请号：JP2011128908
申请日：2011-06-09
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： NOTOHARA DAISUKE , SHIBATA KOICHI
IPC分类号： A61B6/03 , A61B6/00 , A61B6/02
摘要： PROBLEM TO BE SOLVED: To provide a radiographic apparatus that obtains a subtraction image while moving a radiation source, the apparatus being simple in apparatus configuration and easy to control.SOLUTION: The apparatus is configured such that a subtraction image is generated while the radiation source is moved with respect to a subject. Conventionally, such an apparatus alternates high-voltage photographing and low-voltage photographing by moving the radiation source. The foregoing manner complicates the control of the apparatus. In view of the drawback, the apparatus carries out high-voltage photographing while moving the radiation source in one direction, and low-voltage photographing while moving the radiation source in the reverse direction to it. This makes it possible to provide the radiographic apparatus that is easy to control and simple in structure.
摘要翻译：要解决的问题：为了提供在移动辐射源的同时获得减影图像的放射线照相设备，该设备简单的设备配置和易于控制。解决方案：该装置被配置为使得当辐射源相对于被摄体移动时产生减影图像。通常，这种装置通过移动辐射源来交替进行高压拍摄和低电压拍摄。上述方式使装置的控制复杂化。鉴于缺点，该装置在沿一个方向移动辐射源的同时执行高压拍照，并且在将辐射源沿相反方向移动的同时进行低压拍摄。这使得可以提供易于控制并且结构简单的放射线照相设备。版权所有（C）2013，JPO＆INPIT

43. 发明专利

JP2011110247A X-ray photographing apparatus and x-ray photographing method 有权
标题翻译： X射线摄影装置和X射线摄影方法
公开(公告)号：JP2011110247A
公开(公告)日：2011-06-09
申请号：JP2009269984
申请日：2009-11-27
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 and an X-ray photographing method for eliminating luminance non-uniformity between respective images when a plurality of images are synthesized so as to obtain a long image.
SOLUTION: The X-ray photographing apparatus includes: a segmenting portion 81 for segmenting the overlapping parts of the first and second images from the respective first and second images as first and second synthesizing parts; a histogram generating portion 82 for generating first and second histograms, based on pixel values in the first and second synthesizing parts; a gradation conversion table generating portion 83 for generating first and second gradation conversion tables to perform histogram equalization with respect to the first and second histograms; a gradation converting portion 84 for performing the gradation conversion of the second image with the use of the second gradation conversion table and also performing reverse gradation conversion with respect to the second image after performing the gradation conversion with the use of the first gradation conversion table; and an image synthesizing portion 85 for synthesizing the first image with the second image where the gradation conversion and the reverse gradation conversion are performed by the gradation converting portion 84.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供当合成多个图像以获得长的图像时，用于消除各个图像之间的亮度不均匀的X射线摄影装置和X射线摄影方法。解决方案：X射线摄影装置包括：分割部分81，用于将来自相应的第一和第二图像的第一和第二图像的重叠部分分割为第一和第二合成部分; 基于第一和第二合成部分中的像素值的直方图生成部分82，用于产生第一和第二直方图; 灰度转换表生成部分83，用于产生相对于第一和第二直方图执行直方图均衡的第一和第二灰度转换表; 灰度转换部分84，用于使用第二灰度转换表执行第二图像的灰度转换，并且在使用第一灰度转换表执行灰度转换之后还对第二图像执行反向灰度转换; 以及图像合成部分85，用于将第一图像与通过灰度转换部分84执行灰度转换和反向灰度转换的第二图像合成。版权所有：（C）2011，JPO＆INPIT

44. 发明专利

JP2010240063A Radiographic apparatus 审中-公开
标题翻译：放映设备
公开(公告)号：JP2010240063A
公开(公告)日：2010-10-28
申请号：JP2009090145
申请日：2009-04-02
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： NOTOHARA DAISUKE , SHIBATA KOICHI
IPC分类号： A61B6/02
摘要： PROBLEM TO BE SOLVED: To provide a radiographic apparatus which radiographs a series of perspective images with a suitable radiation dose while suppressing exposure dose of a subject, which are clear and suitable for diagnosis.
SOLUTION: According to configuration of the present invention, the radiographic apparatus is provided with a phototimer 5 which measures the dose of X-rays to be made incident on an FPD 4. An X-ray tube control part 6 interrupts X-ray irradiation of an X-ray tube 3 when an accumulated value of the dose of X-rays becomes a predetermined value or more. In this way, a first perspective image P is acquired under suitable irradiation conditions. Then, radiography of perspective images P of the next time and thereafter are performed under the same irradiation conditions as those of the first perspective image P. Thus, the first perspective image P is used for generation of tomographic images and also used for determination of the irradiation conditions. Consequently, the dose of X-rays to be irradiated on the subject M is suppressed in comparison with conventional configuration that images to be used only for determination of the irradiation conditions must be acquired.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种放射线照相装置，其以抑制适合于诊断的对象的曝光剂量，以适当的辐射剂量对一系列透视图进行成像。解决方案：根据本发明的结构，射线照相装置设置有光速度计5，其测量入射到FPD 4上的X射线的剂量.X射线管控制部分6中断X射线，当X射线剂量的累计值变为预定值以上时，X射线管3的X射线照射。以这种方式，在合适的照射条件下获取第一透视图像P. 然后，在与第一透视图像P相同的照射条件下进行下一次和之后的透视图像P的放射线照相。因此，第一透视图像P用于产生断层图像，并且也用于确定照射条件。因此，与仅用于确定照射条件的图像的传统结构相比，抑制要照射在被检体M上的X射线的剂量被抑制。版权所有（C）2011，JPO＆INPIT

45. 发明专利

JP2009028319A Method for improving quality of ivr image 审中-公开
标题翻译：改善IVR图像质量的方法
公开(公告)号：JP2009028319A
公开(公告)日：2009-02-12
申请号：JP2007195693
申请日：2007-07-27
申请人： Ritsumeikan , Shimadzu Corp , 学校法人立命館 , 株式会社島津製作所
发明人： CHIN ENI , SHIBATA KOICHI , MISHINA YUKIO
IPC分类号： A61B6/00 , G06T1/00 , G06T5/00 , G06T5/20
摘要： PROBLEM TO BE SOLVED: To provide a method by which noise in an IVR (interventional radiology) image can be filtered out and its linear shades of guide wires, a blood vascular system and the like to be focused can be accentuated. SOLUTION: An original IVR image (S1) whose quality should be improved is subjected to ICA (independent content analysis)-Shrinkage filter processing (S2) and a first IVR image is generated (S3) from which noise signals are filtered out. The first IVR image is subjected to multi-scale filter processing (S4) and a second IVR image in which linear shade signals are accentuated is generated (S5). After inverting the contrast of the second IVR image, the first and second IVR images are composed (S6) and an IVR image whose quality is improved is generated (S7). COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供可以滤除IVR（介入放射学）图像中的噪声并且可以加强其引导线，血管系统等的线性阴影以进行聚焦的方法。
解决方案：将质量改善的原始IVR图像（S1）进行ICA（独立内容分析） - 收缩滤波处理（S2），并生成第一IVR图像（S3），从中滤出噪声信号。对第一IVR图像进行多尺度滤波处理（S4）和产生线性色调信号被强调的第二IVR图像（S5）。在反转第二IVR图像的对比度之后，构成第一和第二IVR图像（S6），并且生成质量得到改善的IVR图像（S7）。版权所有（C）2009，JPO＆INPIT

46. 发明专利

JP2008067920A Radiographic equipment 有权
标题翻译：放射性设备
公开(公告)号：JP2008067920A
公开(公告)日：2008-03-27
申请号：JP2006249737
申请日：2006-09-14
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 , A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide radiographic equipment capable of executing tomography by a novel imaging method. SOLUTION: This radiographic equipment is so constituted that an X-ray tube moves parallel along a perpendicular direction to the body axis, the longitudinal direction of a subject. Also, the equipment is constituted that the X-ray tube intermittently irradiates X-rays whenever the X-ray tube moves for every pitch, and an FPD detects the X-rays intermittently irradiated and transmitting through the subject. X-ray images O 1 , O 2 ,...,O I ,... and O M are resolved for every pitch, and the resolved images are composed for every same projection angle in order to obtain projection images P1, P2, etc. for every projection angle. This radiographic equipment can thus execute the tomography by the novel imaging method by executing a reconstruction process based on the composed projection images. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过新颖的成像方法执行断层摄影的射线照相设备。解决方案：该射线照相设备被构造成使得X射线管沿着垂直方向平行地移动到被摄体的身体轴线的纵向方向。而且，每当X射线管每个节距移动时，X射线管间歇地照射X射线，并且FPD检测间歇地照射并透过被摄体的X射线。 X射线图像O 1 ，O 2，...，O I ，...和O M 对于每个节距进行解析，并且为每个相同的投影角度构成解析的图像，以便为每个投影角度获得投影图像P1，P2等。因此，该射线照相设备可以通过基于组合的投影图像执行重建处理，通过新颖的成像方法执行断层摄影。版权所有（C）2008，JPO＆INPIT

47. 发明专利

JP2007054527A Digital radiography apparatus 有权
标题翻译：数码摄影设备
公开(公告)号：JP2007054527A
公开(公告)日：2007-03-08
申请号：JP2005246400
申请日：2005-08-26
申请人： Shimadzu Corp , 株式会社島津製作所
发明人： SHIBATA KOICHI , MORI KAZUHIRO , NOTOHARA DAISUKE
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To minimize the deterioration of an image by substituting a pixel value suppressing the effect of noise and defective data as much as possible for each of respective pixels.
SOLUTION: An intermediate value extraction means 6 sets a sub region composed of an object pixel and pixels adjacent thereto to each of all the pixels of image data for one frame of X rays detected by a flat panel type X-ray detector 2, finds values of the respective pixels in the sub region and extracts an intermediate value to be intermediate of the values. A difference calculation means 7 calculates a difference between the extracted intermediate value and the value (an original value) of an object pixel, and a pixel value comparison means 8 compares the difference with a set value and outputs an intermediate signal or an original value signal. A pixel value selection means 9 selects and outputs the intermediate value responding to the intermediate value signal and the value of the object pixel responding to the original value signal as the pixel values, respectively, and an image processing means 10 generates an X-ray image based on the pixel values output from the pixel value selection means 9.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了使每个像素尽可能多地替换抑制噪声和有缺陷数据的影响的像素值，以最小化图像的劣化。解决方案：中间值提取装置6将由对象像素构成的子区域和与其相邻的像素设置为由平板型X射线检测器2检测的一帧X射线的图像数据的全部像素中的每一个找到子区域中的各个像素的值，并将中间值提取为该值的中间值。差异计算装置7计算提取的中间值与对象像素的值（原始值）之间的差，像素值比较装置8将该差与设定值进行比较，并输出中间信号或原始值信号。像素值选择装置9分别选择并输出响应于中间值信号的中间值和响应于原始值信号的对象像素的值作为像素值，并且图像处理装置10产生X射线图像基于从像素值选择装置9输出的像素值。版权所有：（C）2007，JPO＆INPIT

48. 发明专利

JP2590883B2 失效
公开(公告)号：JP2590883B2
公开(公告)日：1997-03-12
申请号：JP13786687
申请日：1987-05-31
申请人： SHIMADZU CORP
发明人： WANI HIDENOBU , SHIBATA KOICHI
IPC分类号： G01N23/04 , A61B6/00 , G01T1/00 , G01T1/161 , G03B42/02 , G06T1/00 , H04N5/32 , H04N5/321 , H04N7/18

49. 发明专利

JPH0810246A ROTARY X-RAY RADIOGRAPHING APPARATUS 失效
公开(公告)号：JPH0810246A
公开(公告)日：1996-01-16
申请号：JP17340694
申请日：1994-06-30
申请人： SHIMADZU CORP
发明人： SHIBATA KOICHI , TANAKA SHUJI
IPC分类号： A61B6/00
摘要： PURPOSE:To easily observe a remarked part by displaying the remarked part at a fixed position even in the images observed from any angle. CONSTITUTION:When the positions of the remarked parts in the images in two directions displayed on an image monitoring device 42 are indicated with a joy stick 45, an image shift device 44 calculates shift quantity to display the remarked part at the fixed position from the positions in two images and the angles of them, and shifts each image by that quantity.

50. 发明专利

JPH0544871B2 失效
公开(公告)号：JPH0544871B2
公开(公告)日：1993-07-07
申请号：JP3769384
申请日：1984-02-29
申请人： SHIMADZU CORP
发明人： SHIBATA KOICHI
IPC分类号： G01N23/04 , A61B6/00 , H04N5/325 , H04N7/18

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