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：US06987828B2

公开(公告)日：2006-01-17

申请号：US10397026

申请日：2003-03-25

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  A61B6/027 ,  G01N2223/419

摘要： An object of the present invention is to acquire transmitted X-ray data by irradiating X-rays of appropriate doses determined for the portions of a section containing the major axis and the portions thereof containing the minor axis respectively. An X-ray irradiating/detecting device consists mainly of an X-ray irradiator that includes an X-ray tube and irradiates a fan-shaped X-ray beam, and an X-ray detector that has a plurality of X-ray detecting elements arrayed in a direction in which the fan-shaped X-ray beam spreads and that is opposed to the X-ray irradiator with an object of imaging between them. The X-ray irradiating/detecting device is rotated about the object in order to acquire transmission X-ray data stemming from a plurality of views. At this time, the dose of the X-ray beam is differentiated between predetermined angular ranges of a section of the object shaped like an oval, which extend with the minor axis of the oval section as a centerline, and the other angular ranges.

公开(公告)号：US06633627B2

公开(公告)日：2003-10-14

申请号：US09919164

申请日：2001-07-31

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： G21K300

CPC分类号： A61B6/032 ,  A61B6/4035 ,  G21K1/10

摘要： In order to obtain an X-ray tomographic image with high quality while minimizing the exposed dose to a subject by employing the most suitable filter according to the region of the subject to be scanned, a filter unit 6 having filters 6a-6c having different transmission properties are provided below an X-ray tube 4 in a gantry apparatus. To obtain an X-ray tomographic image, upon determining the scan region of the subject, a motor 7 is driven to position one of the filters corresponding to the scan region just below the X-ray tube 4 for employing the filter, and X-rays are applied to the subject through the filter.

摘要翻译： 为了通过使用根据要扫描的对象区域的最合适的滤波器来最小化对被摄体的暴露剂量来获得具有高质量的X射线断层图像，滤光器单元<6> BOLD> 具有过滤器 6 a - 6 c < 具有不同透射特性的ITALIC> 在龙门式装置中的X射线管 4 之下提供。 为了获得X射线断层图像，在确定被检体的扫描区域时，驱动电动机 7 将与扫描区域对应的一个过滤器 使用过滤器的X射线管 4 ，并通过过滤器将X射线施加到被摄物体。

公开(公告)号：US06463115B1

公开(公告)日：2002-10-08

申请号：US09636288

申请日：2000-08-10

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： A61B603

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 Proj_ij 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Proj_ij。 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：US6067341A

公开(公告)日：2000-05-23

申请号：US158032

申请日：1998-09-22

申请人： Tetsuya Horiuchi

发明人： Tetsuya Horiuchi

IPC分类号： A61B6/03 ,  A61B6/00

CPC分类号： A61B6/488 ,  A61B6/032 ,  Y10S378/901

摘要： In order for image data pixel value ranges for several slices to be contained within the same preferred range, an x-ray computed tomography method and apparatus comprises an x-ray source 2 for emitting x-rays toward a subject, an x-ray detector 3 for detecting subject transmission information of the emitted x-rays and control means 15 for controlling the x-ray emission and detection, wherein the control means exerts the control so as to, prior to the tomographic imaging of the subject, produce scout images by fixing the angular position of the x-ray source at two different angular positions and performing the scout imaging of the subject respectively at the angular positions; calculates a scanning condition with reference to the standard deviation of image data based on the area of projection display data, a desired standard deviation of the image data and the pixel value attenuation ratio between the scout images acquired respectively at the two angular positions of the x-ray source; and exerts the control so as to perform the tomographic imaging according to the scanning condition.

摘要翻译： 为了将数个切片的图像数据像素值范围包含在相同的优选范围内，x射线计算机断层摄影方法和装置包括用于朝向对象发射x射线的x射线源2，X射线检测器 3，用于检测所发射的X射线的被摄体发射信息和用于控制x射线发射和检测的控制装置15，其中控制装置进行控制，以便在被摄体的断层成像之前，通过以下方式产生侦察图像： 将X射线源的角度位置固定在两个不同的角度位置，并分别在角位置执行对象的侦察成像; 基于投影显示数据的面积，图像数据的期望标准偏差和分别在x的两个角位置获取的侦察图像之间的像素值衰减率来计算扫描条件，参考图像数据的标准偏差 来源 并执行控制以便根据扫描条件执行断层图像成像。

公开(公告)号：US5590165A

公开(公告)日：1996-12-31

申请号：US335772

申请日：1994-11-09

申请人： Makoto Gohno ,  Tetsuya Horiuchi

发明人： Makoto Gohno ,  Tetsuya Horiuchi

IPC分类号： A61B6/00 ,  A61B6/03 ,  A61B10/00 ,  G06T5/00

CPC分类号： G06T7/0081 ,  A61B5/4872 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/482 ,  A61B6/583 ,  G06T7/0012 ,  G06F19/321 ,  G06F19/3487 ,  G06T2207/10081 ,  G06T2207/30004 ,  Y10S378/901

摘要： A method of generating an image representing fat distributions, comprising the steps of scanning two different levels of tube voltage using a phantom containing a sample rod of a fat standard material and a plurality of sample rods with different densities of a bone mineral equivalent material, to generate two cross sectional image data; detecting the CT number of each pixel in an entire region or an objective region of the cross sectional image data as the CT number of a tissue including fat (.alpha.wf); detecting the CT number of the bone mineral equivalent material to calculate a linear regression between the CT number and the density of the bone mineral equivalent material and to define the CT number of a tissue excluding fat (.alpha.nf); detecting the CT number of the fat standard material (.alpha.ff), while detecting the CT number of a soft tissue standard material (.alpha.st), wherein individual CT numbers are applied to the equation.alpha.wf=.alpha.nf+.beta..multidot.(.alpha.ff-.alpha.st)with .beta. defined as a fat ratio parameter; calculating the fat ratio parameter .beta. of each pixel in the entire region or an objective region of the cross sectional image data using the foregoing equation, with attention focused on the finding that the density of the bone mineral equivalent material is constant at scanning at any different level of tube voltage, and finally generating an image based on the fat ratio parameter .beta..

摘要翻译： PCT No.PCT / JP93 / 00696 Sec。 371日期：1994年11月9日 102（e）1994年11月9日日期PCT提交1993年5月25日PCT公布。 出版物WO93 / 24054 日期1993年12月9日一种产生代表脂肪分布的图像的方法，包括以下步骤：使用包含脂肪标准材料的样品棒的体模和具有不同密度的骨的多个样品棒来扫描两个不同级别的管电压 矿物当量材料，产生两个截面图像数据; 检测横截面图像数据的整个区域或目标区域中的每个像素的CT数作为包括脂肪（αwf）的组织的CT数; 检测骨矿物当量材料的CT数，以计算CT数和骨矿物当量材料的密度之间的线性回归，并定义不包括脂肪（αnf）的组织的CT数; 检测脂肪标准物质的CT数（αff），同时检测软组织标准物质（αst）的CT数，其中各个CT数应用于方程αwf =αnf +βx（αff- αst），β被定义为脂肪比参数; 使用上述等式计算整个区域或横截面图像数据的每个像素的每个像素的脂肪比参数β，注意力集中在以下发现：骨矿物当量材料的密度在任何不同的扫描处是恒定的 管电压水平，最后根据脂肪比参数β生成图像。

公开(公告)号：US4963624A

公开(公告)日：1990-10-16

申请号：US307629

申请日：1989-02-07

申请人： Kozo Ida ,  Tetsuya Horiuchi

发明人： Kozo Ida ,  Tetsuya Horiuchi

IPC分类号： B29C47/00 ,  C08F257/02 ,  C08F265/06

CPC分类号： C08F265/06 ,  C08F257/02 ,  B29C47/00 ,  B29C47/0019

摘要： A process for producing a light diffusing methacrylic resin article consisting essentially of a substrate polymer and crosslinked polymer beads having an average particle diameter of 1-16 .mu.m dispersed therein, the difference between the refractive indexes of the crosslinked polymer beads and the substrate polymer being 0.02-0.15, which comprises compounding the crosslinked polymer beads with:(A) methyl methacrylate or a mixture of a major amount thereof with a minor amount of at least one comonomer;(B) at least one monomer which can form a polymer compatible with the polymer obtained from (A); or(C) a polymer-in-monomer solution obtained by partially polymerizing either the (A) monomer or the (B) monomer,to swell the beads until a degree of swelling of from 120% to 1,500% is reached, and subjecting the resulting mixture to polymerization to obtain a light diffusing polymer and molding the polymer alone or in combination with a methacrylic resin, the main monomer unit of which is methyl methacrylate to a desired shape. The article obtained has a good balance between brightness and maximum bend angle, has such an opacity that a light source is not seen through the article and has a good appearance.

摘要翻译： 用于制造基本上由基材聚合物和平均粒径为1-16μm的交联聚合物珠粒组成的光漫射甲基丙烯酸树脂制品的方法，交联聚合物珠粒和基材聚合物的折射率之间的差异为 0.02-0.15，其包括将交联聚合物珠粒与（A）甲基丙烯酸甲酯或其主要量与少量至少一种共聚单体的混合物混合; （B）至少一种可与由（A）获得的聚合物相容的聚合物形成的单体; 或（C）通过部分聚合（A）单体或（B）单体而获得的聚合物 - 单体溶液，使珠粒溶胀，直至达到120〜1500％的溶胀度，并使 得到混合物以获得光漫射聚合物，并单独模塑聚合物或与主要单体单元为甲基丙烯酸甲酯的甲基丙烯酸树脂组合成所需形状。 所获得的制品在亮度和最大弯曲角度之间具有良好的平衡，具有通过制品不能看到光源并具有良好外观的不透明度。