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1. 发明专利

JP2010046212A X-ray ct apparatus 有权
标题翻译： X射线CT装置
公开(公告)号：JP2010046212A
公开(公告)日：2010-03-04
申请号：JP2008211888
申请日：2008-08-20
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： SAITO YASUO , OKUMURA YOSHIKAZU
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B5/113 , A61B6/027
摘要： PROBLEM TO BE SOLVED: To obtain volume data in an optionally selected respiration phase with the movement of a subject in a deep respiration motion even if the subject performs the respiration without such reproductivity as when the subject intentionally performs the deep respiration.
SOLUTION: A respiration facilitating machine 21 urges the subject 2 to intentionally perform respiration with different depths by outputting such messages as; "Relax, please", "Inhale deep as much as possible", "Exhale deep as much as possible", "Inhale deep as much as possible once more", and "Relax again" in voice. At the time, an X-ray bulb 4 and a two-dimensional detector system 7 are continuously rotationally moved around the subject 2 to execute the main scan, so that projection data are collected.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使受试者进行呼吸而没有与受试者有意执行深呼吸时的再现性相关，即使在受试者进行深呼吸运动时，在任选选择的呼吸阶段获得体数据。呼吸促进机21通过输出以下消息来促使对象2有意地用不同深度进行呼吸; “请放心”，“尽可能深入”，“尽可能多地呼气”，“再次深呼吸”，再次放声大笑。此时，X射线灯泡4和二维检测器系统7围绕被摄体2连续地旋转移动以执行主扫描，从而收集投影数据。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009282033A X-ray computed tomographic apparatus and method of manufacturing x-ray detection device 有权
标题翻译： X射线计算机图像设备及其制造X射线检测装置的方法
公开(公告)号：JP2009282033A
公开(公告)日：2009-12-03
申请号：JP2009165060
申请日：2009-07-13
申请人： Toshiba Corp , 株式会社東芝
发明人： IGARASHI KENJI , IDE HIDEKI , USHIMI KENJI , SAITO YASUO , YOSHIDA YUZO , OKUMURA YOSHIKAZU
IPC分类号： G01T7/00 , A61B6/03 , A61B6/06 , G01T1/20
摘要： PROBLEM TO BE SOLVED: To provide a detector unit capable of easily positioning a detector with respect to a collimator without requiring a special apparatus by only mechanically assembling it without the sense of adjustment.
SOLUTION: The X-ray computed tomographic apparatus includes: a photodiode chip 42 mounted on a board 41 attached to supports 31, 32 supporting a collimator single plate 33; a scintillator block 43 arranged corresponding to the photodiode chip 42 and provided on the photodiode chip 42 to convert X-rays into light; and comb-like adjustment components 45, 45 provided at the side of the collimator single plate 33 of the board 41 and regulating the position of the photodiode chip 42 or the scintillator block 43 with respect to the collimator single plate 33 in a channel direction C by being brought into engagement with the collimator single plate 33.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种检测器单元，其能够相对于准直器容易地定位检测器，而不需要专门的设备，仅通过机械组装而没有调整感。解决方案：X射线计算机断层摄影装置包括：安装在支撑准直器单板33的支撑件31,32上的板41上的光电二极管芯片42; 与光电二极管芯片42对应配置并设置在光电二极管芯片42上以将X射线转换为光的闪烁体块43; 以及设置在基板41的准直器单板33一侧的梳状调整部件45,45，并且在通道方向C上调整相对于准直器单板33的光电二极管芯片42或闪烁体块43的位置通过与准直器单板33接合。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2004160175A X-ray ct apparatus 有权
公开(公告)号：JP2004160175A
公开(公告)日：2004-06-10
申请号：JP2003179764
申请日：2003-06-24
申请人： Toshiba Corp , Toshiba Medical System Co Ltd , 東芝医用システムエンジニアリング株式会社 , 株式会社東芝
发明人： IGARASHI KENJI , IDE HIDEKI , OKUMURA YOSHIKAZU , YAMAZAKI MASAHIKO , OE ATSUSHI
IPC分类号： A61B6/03
摘要： PROBLEM TO BE SOLVED: To provide an X-ray detector and an X-ray CT apparatus capable of acquiring a CT image having fine spatial resolution in the channel direction C, and also to provide a method for fabricating a slit of a slit structure. SOLUTION: The X-ray detector comprises a plurality of photodiodes arranged along the channel direction C and rows of photodiodes arranged in the slice direction, and detects X-ray emitted from an X-ray focal point 8 and transmitted through a subject W by using the photodiodes 52. The X-ray detector is further provided with a slit structure 15 made of heavy metal having an X-ray absorbing coefficient comparable to molybdenum etc., on the X-ray focal point side of the photodiodes 52. The slit structure 15 comprises a first slit row having a plurality of first slits 16 arranged in the channel direction C and a second slit 17 extending in the channel direction C for connecting the first slits 16 with each other. The width of the first slit in the channel direction C is narrower than the predetermined pitch. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003207575A COLLIMATOR, X-RAY DETECTION DEVICE AND X-RAY CT DEVICE 审中-公开
公开(公告)号：JP2003207575A
公开(公告)日：2003-07-25
申请号：JP2002008289
申请日：2002-01-17
申请人： TOSHIBA CORP
发明人： IGARASHI KENJI , OKUMURA YOSHIKAZU , SAITO YASUO , SHIMIZU MASAHARU , MIZUI SHIGERU
IPC分类号： G01N23/04 , A61B6/03 , A61B6/06 , G01T7/00
摘要： PROBLEM TO BE SOLVED: To provide a collimator for controlling scattered X-rays over the whole region of a detector of an X-ray CT device, an X-ray detection device using the collimator, and the X-ray CT device on which the X-ray detection device is loaded. SOLUTION: The pitch of arrangement of collimator plates 19 at a peripheral part 18B of the collimator 18 is set to be sparser or shorter than the pitch of arrangement of the collimator plates 19 at the center part 18A of the collimator 18. COPYRIGHT: (C)2003,JPO

5. 发明专利

JPH0992215A FLUORESCENT LAMP 失效
公开(公告)号：JPH0992215A
公开(公告)日：1997-04-04
申请号：JP25133295
申请日：1995-09-28
申请人： TOSHIBA CORP
发明人： OKUMURA YOSHIKAZU , MATSUDA NAOHISA , ARUBESAARU KEIKO , TAMAYA MASAAKI
IPC分类号： H01J61/42
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration in the performance of a fluorescent lamp such as a color rendering characteristic, luminance or the like caused by a protection film, prevent the deterioration in the function as the protection film under the manufacturing conditions of various kinds of fluorescent lamps, and improve the luminance itself. SOLUTION: On the inner surface 3a of a glass tube 3 in which ionization medium including mercury is sealed and on which a pair of electrodes 2 are arranged at its both ends, a coated film 4 having fluorescent ultra fine particles of the average particle dia. 150nm or less is formed as an ultraviolet ray reflection and absorbing film (protection film). A light emitting layer 5 made of coated film having one or two kinds of fluorescent particles is formed thereon.

6. 发明专利

JP2006280919A X-ray ct apparatus 审中-公开
标题翻译： X射线CT装置
公开(公告)号：JP2006280919A
公开(公告)日：2006-10-19
申请号：JP2006057778
申请日：2006-03-03
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： OKUMURA YOSHIKAZU , NAKANISHI SATORU , TSUYUKI MASAYOSHI , SAITO YASUO
IPC分类号： A61B6/03
摘要： PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus irradiating a subject with X-rays from a plurality of X-ray tubes and capturing the image with appropriate time resolution and FOV (Field of View) suited to a purpose.
SOLUTION: This X-ray CT apparatus 1 is provided with: three X-ray generating sections 7a, 7b and 7c so disposed that an angle formed between a first X-ray radiating direction and a second X-ray radiating direction, and an angle formed between the second radiating direction and a third radiating direction become a same angle smaller than 120° on its rotation plane; three detecting element groups 9a, 9b and 9c disposed opposite to the three X-ray generators 7a, 7b and 7c respectively so that an imaging visual field D1 formed in the center becomes larger than the two imaging visual fields D2 in its both sides; and reconstruction sections 14 and 15 reconstructing the image using detection data detected by at least a single desired detecting element group out of the three detecting element groups 9a, 9b and 9c.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种X射线CT装置，其从多个X射线管向X射线照射受试者，并以适当的时间分辨率和适合于目的的FOV（视场）捕获图像。解决方案：该X射线CT装置1设置有三个X射线产生部7a，7b和7c，其被设置为在第一X射线辐射方向和第二X射线辐射方向之间形成的角度，并且在第二辐射方向和第三辐射方向之间形成的角度在其旋转平面上变得小于120°的相同角度; 分别与三个X射线发生器7a，7b和7c相对设置的三个检测元件组9a，9b和9c，使得在中心形成的成像视场D1变得比其两侧的两个成像视野D2大; 以及重构部分14和15使用由三个检测元件组9a，9b和9c中的至少一个所需检测元件组检测到的检测数据来重构图像。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005160544A Image processor 审中-公开
标题翻译：图像处理器
公开(公告)号：JP2005160544A
公开(公告)日：2005-06-23
申请号：JP2003400083
申请日：2003-11-28
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： TOYOSHIMA NAOKO , OKUMURA YOSHIKAZU
IPC分类号： A61B6/03 , H04N5/325
摘要： PROBLEM TO BE SOLVED: To improve the quality of an X-ray CT image by filtering the image with characteristics according to scanning conditions and image reconstruction conditions as well as edge intensity.
SOLUTION: This image processor is provided with an edge intensity calculating section 120 calculating an edge intensity in a local area of the X-ray CT image, a filter element calculating section 123 determining filter characteristics related to a smoothing level for every local area, a Gaussian filtering section 122 filtering the X-ray CT image according to the filter characteristics determined for every local area, and a storage section 118 storing the correspondence between the image reconstruction conditions corresponding to the X-ray CT image and the calculating method of the edge intensity.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过根据扫描条件和图像重建条件以及边缘强度对具有特征的图像进行滤波来提高X射线CT图像的质量。解决方案：该图像处理器设置有计算X射线CT图像的局部区域中的边缘强度的边缘强度计算部分120，滤波器元素计算部分123确定与每个局部平滑度相关的滤波器特性区域，根据为每个局部区域确定的滤波器特性对X射线CT图像进行滤波的高斯滤波部分122以及存储与X射线CT图像相对应的图像重建条件与计算方法之间的对应关系的存储部分118 的边缘强度。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004246625A Image processing apparatus, image processing method and program 有权
公开(公告)号：JP2004246625A
公开(公告)日：2004-09-02
申请号：JP2003035727
申请日：2003-02-13
申请人： Toshiba Corp , 株式会社東芝
发明人： KOBAYASHI TADAHARU , OKUMURA YOSHIKAZU
IPC分类号： A61B6/00 , F16K31/06 , F16K39/04 , G06T5/00 , G06T5/20 , H04N1/409 , H04N5/325
CPC分类号： F16K39/04 , F16K31/0613 , G06T5/002 , G06T2207/20012 , G06T2207/20192 , G06T2207/30004
摘要： PROBLEM TO BE SOLVED: To provide an image with excellent visuality for observation object such as a structure and having small noises as the whole image by surely securing information on important parts in term of observation such as boundary of the structure which includes high frequency components and capable of securely removing or reducing image noises consisting mainly of the high frequency components. SOLUTION: Two output images to which a smoothing process is applied by applying two smoothing filters having mutually different filter factors to an original image are obtained (steps S1 to S3), a differential image is obtained (step S4) by mutually differentiate the two output images for every pixel, a weighing factor is calculated (step S5) in accordance with the differential image, and weighing addition is performed (steps S6 to S8) by using the weighing factor for the original image and a smoothed image formed by the smoothing process applied to the original image. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2003121551A RADIATION DETECTOR AND METHOD OF MANUFACTURING THE SAME, AND X-RAY CT EQUIPMENT 审中-公开
公开(公告)号：JP2003121551A
公开(公告)日：2003-04-23
申请号：JP2001311203
申请日：2001-10-09
申请人： TOSHIBA CORP
发明人： MIYAGI TAKESHI , OKUMURA YOSHIKAZU , ISO MACHIKO
IPC分类号： G01T1/20 , A61B6/03 , H01L31/09
摘要： PROBLEM TO BE SOLVED: To provide a radiation detector which can obtain CT images of high quality, by reducing a noise induced in a detected analog signal, when the detected analog signal is transmitted in an X-ray CT equipment of a multislice system, and to provide the X-ray CT equipment using the radiation detector. SOLUTION: A second board 30a in a radiation detection data acquisition device 11 is erected and installed at a first board 23, in a direction crossing the slice direction of a scintillator array 26.

10. 发明专利

JPH10102053A FLUORESCENT SUBSTANCE AND ITS PRODUCTION 失效
公开(公告)号：JPH10102053A
公开(公告)日：1998-04-21
申请号：JP25850996
申请日：1996-09-30
申请人： TOSHIBA CORP
发明人： OKUMURA YOSHIKAZU , TAMAYA MASAAKI , ARUBESAARU KEIKO , MATSUDA NAOHISA
IPC分类号： C09K11/08 , C09K11/84
摘要： PROBLEM TO BE SOLVED: To obtain the subject fluorescent substance having an approximately spherical shape, free from discoloration, high in luminous efficiency and comprising a rare earth element oxysulfide by subjecting raw materials for the fluorescent substance to a thermal plasma treatment. SOLUTION: This fluorescent substance comprises transparent spherical particles expressed by the formula: Ln2 O2 S:R (Ln is at least one kind of group 3A element selected from a group consisting of Y, La, Gd and Lu; R is a lanthanide element), having an average particle diameter of 0.5-15μm and a major axis/minor axis ratio of 1.0-1.5, contains particles having diameters of 0.01-0.2μm in an amount of 0.001-0.5wt.%, has relations of the inequalities: 0.31 =95%. The spherical fluorescent substance expressed by the formula and obtained by melting raw materials in thermal plasma and subsequently quenching the melted product is preferably received in the inner vessel of a double vessel. The powder of a sulfide is received in the outer vessel so as to cover the inner vessel, and the received materials are preferably heated at 950-1300 deg.C in a non-oxidizing atmosphere.

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