公开(公告)号：US06754301B2

公开(公告)日：2004-06-22

申请号：US10228514

申请日：2002-08-27

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： G01N2300

CPC分类号： A61B6/488 ,  A61B6/032 ,  A61B6/542 ,  A61B6/56 ,  A61B2560/0271

摘要： For the purpose of reducing exposure of a subject to unnecessary radiation by controlling the tube current according to the X-ray emitting direction with respect to a region to be examined in the subject, a transmission area S is calculated from a cross-sectional plane (S801) and an ellipticity R is calculated for the cross-sectional plane (S802, S803). An image SD of a region having the transmission area S is then calculated (S804), and a SD ratio of a region having the ellipticity R is calculated (S805). An image SD of a region having the transmission area S and ellipticity R is then calculated using the image SD and the SD ratio (S806). Next, a target SD is specified (S807), and the tube current that controls X-rays emitted in the major-axis direction in the cross-sectional plane of the subject is calculated using the image SD obtained at S806 and the target SD (S808), and the tube current that controls X-rays emitted in the minor-axis direction in the cross-sectional plane of the subject is calculated using the obtained tube current and R (S809).

摘要翻译： 为了通过根据X射线发射方向相对于受检者的被检查区域控制管电流来减少受试者对不需要的辐射的照射，从横截面平面（ S801），并且计算横截面的椭圆度R（S802，S803）。 然后计算具有发送区域S的区域的图像SD（S804），并且计算具有椭圆率R的区域的SD比率（S805）。 然后使用图像SD和SD比率来计算具有透射区域S和椭圆率R的区域的图像SD（S806）。 接下来，指定目标SD（S807），并且使用在S806获得的图像SD和目标SD（...）计算控制在被检体的横截面中沿长轴方向发射的X射线的管电流 S808），并且使用所获得的管电流和R（S809）计算控制在受试者的截面中在短轴方向上发射的X射线的管电流。

公开(公告)号：US07778381B2

公开(公告)日：2010-08-17

申请号：US12267101

申请日：2008-11-07

申请人： Akihiko Nishide ,  Kosuke Sasaki ,  Tetsuya Horiuchi

发明人： Akihiko Nishide ,  Kosuke Sasaki ,  Tetsuya Horiuchi

IPC分类号： A61B6/00

CPC分类号： A61B6/466 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/488 ,  A61B6/542

摘要： The present invention provides an X-ray CT apparatus capable of obtaining each tomographic image indicative of X-ray tube voltage dependent information of a subject with the optimum image quality by less reduced exposure. The X-ray CT apparatus includes device for setting a plurality of X-ray tube voltages and sets imaging conditions used in the photography using the respective X-ray tube voltages in such a manner that respective image noise of tomographic images photographed at the X-ray tube voltages become substantially identical to one another. The setting of the imaging conditions is the setting of X-ray tube currents. The X-ray tube currents are set based on geometrical characteristic amounts of the subject determined from each scout image in such a manner that the respective image noise of the tomographic images photographed at the plurality of X-ray tube voltages become substantially identical to one another.

摘要翻译： 本发明提供一种X射线CT装置，其能够通过减少曝光减少获得指示具有最佳图像质量的被摄体的X射线管电压依赖信息的每个断层图像。 X射线CT装置包括用于设置多个X射线管电压的装置，并且使用各X射线管电压设置在摄影中使用的成像条件，使得在X射线管的电压下拍摄的断层图像的各自的图像噪声， 射线管电压彼此基本相同。 成像条件的设定是X射线管电流的设定。 X射线管电流基于从每个侦察图像确定的被摄体的几何特征量，以使得在多个X射线管电压下拍摄的断层图像的各自图像噪声彼此基本相同的方式来设定 。

公开(公告)号：US20090074143A1

公开(公告)日：2009-03-19

申请号：US12210811

申请日：2008-09-15

申请人： Shinsuke TSUKAGOSHI ,  Tetsuya Horiuchi ,  Masahiro Kazama

发明人： Shinsuke TSUKAGOSHI ,  Tetsuya Horiuchi ,  Masahiro Kazama

IPC分类号： H05G1/42

CPC分类号： A61B6/032 ,  A61B6/107 ,  A61B6/542

摘要： An X-ray CT apparatus that transmits X-rays toward a subject on the basis of a set scan condition and reconstructs images from detected X-rays that passes through the subject, including a scan plan setting unit configured to set the scan condition, a reference dose storage unit configured to store reference dose information, including an relation between an attribute information about a plurality of kinds of subjects and reference doses to be referenced for an exposure dose, and an exposure dose calculation unit configured to calculate the exposure dose corresponding to the set scan condition in accordance with the timing of setting of the scan condition.

摘要翻译： 一种X射线CT装置，其基于设定的扫描条件向受检者发送X射线，并且重建来自检测到的穿过被检体的X射线的图像，包括被配置为设置扫描条件的扫描方案设置单元， 参考剂量存储单元，被配置为存储参考剂量信息，包括关于多种对象的属性信息与参照用于曝光剂量的参考剂量之间的关系;以及曝光剂量计算单元，被配置为计算对应于 根据设置扫描条件的定时设置扫描条件。

公开(公告)号：US20070053480A1

公开(公告)日：2007-03-08

申请号：US11507763

申请日：2006-08-22

申请人： Akihiko Nishide ,  Tetsuya Horiuchi ,  Yasuhiro Imai

发明人： Akihiko Nishide ,  Tetsuya Horiuchi ,  Yasuhiro Imai

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： A61B6/00 ,  A61B6/027 ,  A61B6/032 ,  A61B6/542 ,  A61B6/583 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： This invention provides an X-ray CT capable of presenting information of exposure to the operator by displaying X-ray dose information of each of regions of interest to be scanned by an X-ray CT apparatus, thereby encouraging reduction in exposure and optimization. X-ray dose information of each region to be scanned by a conventional scan (axial scan), a cine scan, a helical scan, or a variable-pitch helical scan of an X-ray CT apparatus is displayed so that the operator can recognize the X-ray dose information before acquisition of an image of a subject. The X-ray dose information can be predicated with higher precision and displayed by using a dose prediction value obtained by an interpolation value and an extrapolation value of the first or higher order on at least three or more kinds of phantom measurement values, not a simple prediction value such as a zero-th order interpolation value or a zero-th order extrapolation value obtained by using measurement values of two kinds of phantoms like in the present CTDI display.

摘要翻译： 本发明提供一种能够通过显示由X射线CT装置扫描的每个感兴趣区域的X射线剂量信息来呈现对操作者的曝光信息的X射线CT，由此有助于减少曝光和优化。 通过X射线CT装置的常规扫描（轴向扫描），电影扫描，螺旋扫描或可变间距螺旋扫描来显示要扫描的每个区域的X射线剂量信息，使得操作者可以识别 在获取对象的图像之前的X射线剂量信息。 X射线剂量信息可以更精确地预测并且通过使用通过内插值获得的剂量预测值和在至少三种或更多种幻影测量值上的第一或更高阶的外推值来显示，而不是简单的 例如通过使用如本CTDI显示中的两种类型的幻影的测量值而获得的零级内插值或零级外插值等预测值。

公开(公告)号：US20050027197A1

公开(公告)日：2005-02-03

申请号：US10862658

申请日：2004-06-07

申请人： Koji Segawa ,  Tetsuya Horiuchi

发明人： Koji Segawa ,  Tetsuya Horiuchi

IPC分类号： G01R33/28 ,  A61B5/00 ,  A61B5/055 ,  A61B5/117 ,  A61B6/00 ,  A61B6/03 ,  G06F19/00 ,  G06K17/00 ,  G06Q50/22 ,  H05G1/64

CPC分类号： A61B6/00 ,  G06F19/321 ,  G16H10/60 ,  G16H10/65 ,  G16H40/63

摘要： A medical diagnostic apparatus that includes an examination means for examining a subject to generate medical information; operation console means retaining information on an examination plan for a plurality of subjects, for managing the operation of examinations by the examination means; and display means provided on a surface of a housing of the examination means, for displaying information identifying the current subject to be examined transmitted by the operation console means. Thus, the subject can directly confirm the relationship between himself and the examination means visually from the information identifying the current subject to be examined (e.g., the name of the patient A) displayed on the display means under an inseparable condition.

摘要翻译： 一种医疗诊断装置，包括：检查对象以生成医疗信息的检查单元; 操作控制台意味着保留关于多个对象的检查计划的信息，用于管理检查装置的检查操作; 以及显示装置，设置在检查装置的壳体的表面上，用于显示识别由操作控制台装置发送的当前被检查对象的信息。 因此，被摄体可以在不可分割的状态下从显示装置上显示的当前被检查对象的信息（例如，患者A的名称）的信息直观地确认自身与检查手段之间的关系。

公开(公告)号：US06445764B1

公开(公告)日：2002-09-03

申请号：US09747545

申请日：2000-12-22

申请人： Makoto Gohno ,  Masatake Nukui ,  Tetsuya Horiuchi ,  Akira Hagiwara

发明人： Makoto Gohno ,  Masatake Nukui ,  Tetsuya Horiuchi ,  Akira Hagiwara

IPC分类号： A61B600

摘要： For the purpose of reconstructing a plurality of X-ray tomographic images having a plurality of practical slice thicknesses while reducing the number of X-ray detector arrays and simplifying configuration, X-rays generated by an X-ray tube 4 are emitted via a slit 15 of a collimator 6 toward a detector 8 disposed opposite to the X-ray tube 4; the length (width) of the collimator 6's slit 15 in the D1 direction and the position of the collimator 6 in the D1 direction are adjustable; the detector 8 is comprised of four X-ray detector arrays; and the widths of the two outer X-ray detector arrays in the D1 direction are larger than the widths of the two center X-ray detector arrays.

公开(公告)号：US06373919B1

公开(公告)日：2002-04-16

申请号：US09592972

申请日：2000-06-12

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： G01N2304

CPC分类号： A61B6/032 ,  Y10S378/901

摘要： In order to provide a projection data correction method and apparatus that prevents artifact generation in the direction which provides a low count of penetrating radiation, and a radiation tomographic imaging method employing such a projection data correction method and a radiation tomographic imaging apparatus comprising the projection data correction apparatus, projection data Projij is individually corrected by a weighted addition (604, 606, 608) with an average value (602) containing the proximate data. The weight SGij of the projection data is decreased as the count of the penetrating radiation from which the projection data is derived becomes smaller.

摘要翻译： 为了提供一种防止在提供较低穿透辐射量的方向上产生伪影的投影数据校正方法和装置，以及采用这种投影数据校正方法的放射线断层成像方法和包括投影数据的放射线断层成像装置 校正装置通过具有包含邻近数据的平均值（602）的加权相加（604,606,608）来单独校正投影数据Projij。 投影数据的重量SGij随着导出投影数据的穿透辐射的计数而减小。

公开(公告)号：US5004785A

公开(公告)日：1991-04-02

申请号：US276955

申请日：1988-11-28

申请人： Kozo Ida ,  Tetsuya Horiuchi

发明人： Kozo Ida ,  Tetsuya Horiuchi

IPC分类号： C08F257/02 ,  G02B5/02

CPC分类号： G02B5/0242 ,  C08F257/02 ,  G02B5/0278 ,  Y10S525/931

摘要： There are disclosed a light-diffusing methacrylic resin comprising a dispersion of crosslinked fine particles in a substrate polymer comprising mainly methyl methacrylate and having the characteristics mentioned below:(1) the difference between the refractive indexes of the crosslinked fine particles and the substrate polymer is 0.02 to 0.15.(2) the concentration by weight of the poly-functional monomer used as starting material in the crosslinked fine particles is 5 to 20%,(3) the average particle diameter of the crosslinked fine particles in the light-diffusing methacrylic resin is 5 to 20.mu., the percentage of particles having a particle diameter of 2.mu. or less being less than 1% by weight in the total amount of the crosslinked fine particles to be mixed, and(4) the concentration by weight of the crosslinked fine particles in the light-diffusing methacrylic resin is 0.08 to 10%, and a process thereof.

摘要翻译： 公开了一种光散射性甲基丙烯酸系树脂，其包含主要由甲基丙烯酸甲酯组成的基材聚合物中的交联微粒分散体，具有以下特征：（1）交联微粒与基材聚合物的折射率之差为 0.02〜0.15。 （2）交联微粒中作为原料使用的多官能单体的重量浓度为5〜20％，（3）光扩散性甲基丙烯酸系树脂中的交联微粒的平均粒径为5〜 20μm，粒径为2μm以下的粒子的比例在混合交联微粒的总量中小于1重量％，（4）交联的微粒的重量浓度 光扩散性甲基丙烯酸树脂为0.08〜10％，其工序为。

公开(公告)号：US08189740B2

公开(公告)日：2012-05-29

申请号：US12210811

申请日：2008-09-15

申请人： Shinsuke Tsukagoshi ,  Tetsuya Horiuchi ,  Masahiro Kazama

发明人： Shinsuke Tsukagoshi ,  Tetsuya Horiuchi ,  Masahiro Kazama

IPC分类号： H05G1/42

CPC分类号： A61B6/032 ,  A61B6/107 ,  A61B6/542

摘要： An X-ray CT apparatus that transmits X-rays toward a subject on the basis of a set scan condition and reconstructs images from detected X-rays that passes through the subject, including a scan plan setting unit configured to set the scan condition, a reference dose storage unit configured to store reference dose information, including an relation between an attribute information about a plurality of kinds of subjects and reference doses to be referenced for an exposure dose, and an exposure dose calculation unit configured to calculate the exposure dose corresponding to the set scan condition in accordance with the timing of setting of the scan condition.

摘要翻译： 一种X射线CT装置，其基于设定的扫描条件向受检者发送X射线，并且重建来自检测到的穿过被检体的X射线的图像，包括被配置为设置扫描条件的扫描方案设置单元， 参考剂量存储单元，被配置为存储参考剂量信息，包括关于多种对象的属性信息与参照用于曝光剂量的参考剂量之间的关系;以及曝光剂量计算单元，被配置为计算对应于 根据设置扫描条件的定时设置扫描条件。

公开(公告)号：US20110125034A1

公开(公告)日：2011-05-26

申请号：US12953743

申请日：2010-11-24

申请人： Toshio TSUJI ,  Masao YOSHIZUMI ,  Masashi KAWAMOTO ,  Yukihito HIGASHI ,  Noboru SAEKI ,  Ryuji NAKAMURA ,  Abdugheni KUTLUK ,  Akinobu KOHNO ,  Tetsuya HORIUCHI ,  Teiji UKAWA

发明人： Toshio TSUJI ,  Masao YOSHIZUMI ,  Masashi KAWAMOTO ,  Yukihito HIGASHI ,  Noboru SAEKI ,  Ryuji NAKAMURA ,  Abdugheni KUTLUK ,  Akinobu KOHNO ,  Tetsuya HORIUCHI ,  Teiji UKAWA

IPC分类号： A61B5/021

CPC分类号： A61B5/022 ,  A61B5/02007 ,  A61B5/0402 ,  A61B5/0452 ,  A61B8/0891 ,  A61B8/485

摘要： A vessel wall monitoring apparatus includes: a first detecting unit which detects vessel diameter information based on first biological information obtained from a subject; a first producing unit which differentiates the vessel diameter information detected by the first detecting unit, to produce a vessel diameter function; a second detecting unit which detects blood pressure based on second biological information obtained from the subject; a second producing unit which performs a logarithmic operation on the blood pressure detected by the second detecting unit, to produce a logarithmic blood pressure function; and an outputting unit which produces an impedance model expression by using the vessel diameter function, the logarithmic blood pressure function, and mechanical characteristic values including a stiffness, viscosity, and inertia, and which calculates and outputs at least one of the stiffness, the viscosity, and the inertia based on the impedance model expression.

摘要翻译： 血管壁监视装置包括：第一检测单元，其基于从对象获得的第一生物信息来检测血管直径信息; 第一产生单元，其区分由第一检测单元检测的血管直径信息，以产生血管直径函数; 第二检测单元，其基于从对象获得的第二生物信息检测血压; 第二生成部，对由所述第二检测部检测出的血压进行对数运算，生成对数血压函数; 以及输出单元，其通过使用血管直径函数，对数血压函数和包括刚度，粘度和惯性的机械特性值来产生阻抗模型表达，并且计算并输出刚度，粘度 ，以及基于阻抗模型表达式的惯性。