公开(公告)号：US07876874B2

公开(公告)日：2011-01-25

申请号：US11914520

申请日：2006-05-12

申请人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa ,  Yasuo Omi

发明人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa ,  Yasuo Omi

IPC分类号： G01N23/087

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/482

摘要： A radiographing apparatus according to an aspect of the present invention is characterized in that an image processing device comprises an acquisition device which acquires projection data of a first energy spectrum and projection data of a second energy spectrum, and a synthetic image generating device which synthesizes a first image on the basis of the projection data of the first energy spectrum, and a second image on the basis of the projection data of the second energy spectrum according to a predetermined synthetic condition, and generating a synthetic image, and a display device displays the generated synthetic image.

摘要翻译： 根据本发明的一个方面的放射照相装置的特征在于，图像处理装置包括获取第一能谱的投影数据和第二能量的投影数据的获取装置，以及合成图像生成装置 基于第一能谱的投影数据的第一图像和根据预定合成条件的第二能谱的投影数据的第二图像，并且生成合成图像，并且显示装置显示第一图像 生成合成图像。

公开(公告)号：US20100322375A1

公开(公告)日：2010-12-23

申请号：US12866484

申请日：2009-02-25

申请人： Koichi Hirokawa ,  Taiga Goto ,  Yoshiaki Sugawa

发明人： Koichi Hirokawa ,  Taiga Goto ,  Yoshiaki Sugawa

IPC分类号： A61B6/03 ,  G06G7/62

CPC分类号： A61B6/032 ,  A61B6/583

摘要： There are provided an X-ray CT scan simulator and an X-ray CT apparatus in which a lesion postulated by an operator can be displayed on a simulation image and a high-precision simulation containing a postulation of occurrence of a new lesion can be performed. They comprise an image storing device for storing a reference image, a target noise value setting device for setting a target noise value of a desired image, a simulated lesion setting device for setting a condition for a simulated lesion postulated by the operator, a simulation image generating device for generating a simulation image containing a simulated lesion by using the reference image on the basis of the set target noise value and the condition for the simulated lesion, and an image display device for displaying the simulation image containing the simulated lesion.

摘要翻译： 提供了X射线CT扫描模拟器和X射线CT装置，其中可以在模拟图像上显示由操作者假设的病变，并且可以执行包含新病变的发生假设的高精度模拟 。 它们包括用于存储参考图像的图像存储装置，用于设置所需图像的目标噪声值的目标噪声值设置装置，用于设置由操作者假设的模拟病变的条件的模拟病变设置装置，模拟图像 生成装置，用于基于设定的目标噪声值和模拟病变的条件，通过使用参考图像来生成包含模拟病变的模拟图像;以及图像显示装置，用于显示包含模拟病变的模拟图像。

公开(公告)号：US20100232566A1

公开(公告)日：2010-09-16

申请号：US12671872

申请日：2008-08-06

申请人： Koichi Hirokawa ,  Taiga Goto ,  Takayuki Kadomura

发明人： Koichi Hirokawa ,  Taiga Goto ,  Takayuki Kadomura

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  A61B6/488 ,  A61B6/545

摘要： Provided is an X-ray CT apparatus which can perform CT scan of multi-energy scanning at a high speed and can obtain an image having an excellent substance distinguishing ability.The X-ray CT apparatus includes: means to continuously perform a first CT scanning using a first X-ray energy and a second CT scanning using a second X-ray energy without interrupting CT scan; means to transit the X-ray energy emitted from the X-ray during a transition period TR including an end of the first CT scanning and a beginning of the second CT scanning from the first X-ray energy to the second X-ray energy; and means to compensate the scan data in the transition period by the opposing data in the residual scan period so as to reconstruct an image.

摘要翻译： 本发明提供能够高速进行多能量扫描的CT扫描的X射线CT装置，能够得到具有优异的物质辨别能力的图像。 X射线CT装置包括：使用第一X射线能量和第二次CT扫描连续进行第一次CT扫描的装置，使用第二X射线能量而不中断CT扫描; 在包括第一CT扫描的结束和从第一X射线能量开始到第二X射线能量的过渡期间TR中将从X射线发射的X射线能量传递到第二X射线能量的装置; 以及用于在所述剩余扫描周期中通过相对数据补偿所述过渡期间中的扫描数据以便重构图像的装置。

公开(公告)号：US07684539B2

公开(公告)日：2010-03-23

申请号：US10524341

申请日：2003-08-28

申请人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa

发明人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa

IPC分类号： A61B6/03

CPC分类号： G06T11/005 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  G06T2211/421

摘要： A tomograph which determines projection data phase range capable of back projection for each reconfigured voxel with an arbitrary value larger than π so that the absolute values of cone angles at the ends of this phase range is minimized, calculates an approximate straight line for a curve indicating the position of a radiation source with respect to the channel direction position of parallel beam projection data obtained by a parallel beam of a parallel shape viewed from the go-around axis direction generated from the radiation source, and based on the determined projection data range capable of back projection, three-dimension back projects the parallel beam projection data subjected to filter processing created through a filter correction to the back projection region corresponding to the region in concern along the approximate irradiation trace of the radiation beam calculated using the calculated approximate straight line, thereby suppressing generation of the distortion attributed to data discontinuity, simplifying an arcsin calculation and significantly increasing the processing speed of the tomograph.

摘要翻译： 确定能够以大于＆pgr大于任意值的每个重新配置的体素反投影的投影数据相位范围的断层摄影机; 使得在该相位范围的端部处的锥角的绝对值最小化，计算用于表示辐射源相对于通过平行光束获得的平行光束投影数据的通道方向位置的曲线的曲线的近似直线 从辐射源产生的从复飞轴方向观察的平行形状，并且基于所确定的能够反投影的投影数据范围，三维后投影通过滤波器校正产生的经过滤波处理的平行束投影数据 通过使用计算出的近似直线计算的辐射束的近似照射轨迹，对应于与该区域对应的背投影区域，从而抑制归因于数据不连续性的失真的产生，简化arcsin计算并显着提高处理速度 断层扫描仪

公开(公告)号：US20100014628A1

公开(公告)日：2010-01-21

申请号：US12518812

申请日：2007-12-12

申请人： Takayuki Kadomura ,  Taiga Goto ,  Koichi Hirokawa

发明人： Takayuki Kadomura ,  Taiga Goto ,  Koichi Hirokawa

IPC分类号： A61B6/03

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/482

摘要： An X-ray CT apparatus comprising: a scanner unit for rotating one or more X-ray sources for applying X-ray beams having different energy spectra to an object, and detectors disposed opposed to the X-ray sources for detecting transmitted X-ray data on the object, around the object while applying X-rays, reconstructing means for reconstructing a tomogram of the object by acquiring transmitted X-ray data on the object including the two or more different energy spectra by using the scanner, and display means for displaying the reconstructed tomogram; the X-ray CT apparatus further comprising input means for inputting information on an identification tissue of the object to be identified and a separate tissue to be separated from the identification tissue from the tomogram and scanning condition determining means for determining the scanning condition for identifying the identification tissue from the tomogram.With this, an optimum scanning condition of a multi-energy X-ray CT apparatus can be determined.

摘要翻译： 一种X射线CT装置，包括：扫描器单元，用于旋转一个或多个X射线源，用于将具有不同能量谱的X射线束施加到物体;以及检测器，与X射线源相对设置，用于检测透射的X射线 关于物体周围的数据，在施加X射线的同时在物体周围;重建装置，用于通过使用扫描仪获取包含两个或更多个不同能量的物体的透射的X射线数据来重建物体的断层图;以及显示装置， 显示重建的断层图像; 所述X射线CT装置还包括输入装置，用于输入关于待识别对象的识别组织的信息和与所述断层图像从所述识别组织分离的单独组织;以及扫描条件确定装置，用于确定用于识别所述识别组织的扫描条件 来自断层图像的识别组织。 由此，可以确定多能X射线CT装置的最佳扫描条件。

公开(公告)号：US20090245459A1

公开(公告)日：2009-10-01

申请号：US12095072

申请日：2006-12-25

申请人： Taiga Goto ,  Koichi Hirokawa ,  Osamu Miyazaki

发明人： Taiga Goto ,  Koichi Hirokawa ,  Osamu Miyazaki

IPC分类号： H05G1/60 ,  H05G1/58

CPC分类号： A61B6/032 ,  A61B6/4042 ,  A61B6/465 ,  A61B6/542 ,  Y10S378/901

摘要： In an X-ray CT apparatus comprised with an X-ray generating means, an X-ray detector disposed opposing to the X-ray generating means, a rotating means for rotating the X-ray generating means and the X-ray detector on a circular orbit of a same rotation center, a control means for controlling so as to irradiate X-rays from the X-ray generating means to an object laid along the rotation center and to detect by the X-ray detector X-ray dose penetrated through the object while rotating the X-ray generating means and the X-ray detector through the rotating means and a reconstruction computing means for performing reconstruction computation by making use of the data of the penetrated X-ray dose obtained under the control of the control means and acquiring a tomographic image, the X-ray CT apparatus further being comprised with an input means being inputted of information with respect to an target tissue of the object to be discriminated in the tomographic image and of an index with respect to correctness of the discrimination, and a scanning condition determining means for determining scanning conditions for discriminating the target tissue based on the index inputted by the inputting means.

摘要翻译： 在包括X射线产生装置的X射线CT装置中，与X射线产生装置相对设置的X射线检测器，用于将X射线产生装置和X射线检测器旋转的旋转装置 相同旋转中心的圆形轨道的控制装置，用于控制以将来自X射线产生装置的X射线照射到沿着旋转中心放置的物体的控制装置，并且通过X射线检测器检测穿透的X射线剂量 该物体在通过旋转装置旋转X射线产生装置和X射线检测器的同时，以及重建计算装置，用于通过利用在控制装置的控制下获得的穿透的X射线剂量的数据进行重建计算 并且获取断层图像，所述X射线CT装置还包括输入装置，所述输入装置相对于所述断层图像中待鉴别对象的目标组织的信息被输入，并且相对于t o判别的正确性;以及扫描条件确定装置，用于基于由输入装置输入的索引来确定用于鉴别目标组织的扫描条件。

公开(公告)号：US20090147919A1

公开(公告)日：2009-06-11

申请号：US11914520

申请日：2006-05-12

申请人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa ,  Yasuo Omi

发明人： Taiga Goto ,  Osamu Miyazaki ,  Koichi Hirokawa ,  Yasuo Omi

IPC分类号： G01N23/201 ,  G06K9/00

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/482

摘要： A radiographing apparatus according to an aspect of the present invention is characterized in that an image processing device comprises an acquisition device which acquires projection data of a first energy spectrum and projection data of a second energy spectrum, and a synthetic image generating device which synthesizes a first image on the basis of the projection data of the first energy spectrum, and a second image on the basis of the projection data of the second energy spectrum according to a predetermined synthetic condition, and generating a synthetic image, and a display device displays the generated synthetic image.

摘要翻译： 根据本发明的一个方面的放射照相装置的特征在于，图像处理装置包括获取第一能谱的投影数据和第二能量的投影数据的获取装置，以及合成图像生成装置 基于第一能谱的投影数据的第一图像和根据预定合成条件的第二能谱的投影数据的第二图像，并且生成合成图像，并且显示装置显示第一图像 生成合成图像。

公开(公告)号：US08442289B2

公开(公告)日：2013-05-14

申请号：US12937447

申请日：2009-04-21

申请人： Takayuki Kadomura ,  Taiga Goto

发明人： Takayuki Kadomura ,  Taiga Goto

IPC分类号： G06K9/00 ,  G06K9/34

CPC分类号： G06K9/6285 ,  A61B6/032 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/482 ,  G06F19/00 ,  G06K2209/05 ,  G06T7/11 ,  G06T7/143 ,  G06T7/174 ,  G06T2207/10081 ,  G06T2207/10144 ,  G06T2207/20076 ,  G06T2207/20221 ,  G06T2207/30004

摘要： There is provided a medical image processing device that enables high-precision identification of the type of a biomedical tissue and display of an identification degree with respect to medical image information in multi-energy imaging. The medical image processing device acquires tissue information (statistic amount information such as average CT value, standard deviation of CT values, etc., display color, etc.) of a biomedical tissue every energy intensity of the multi-energy imaging. The medical image processing device creates an identification map for identifying the type of the biomedical tissue on the basis of the statistic amount information, and further creates an identification probability map for determining the identification degree of the biomedical tissue on the basis of the statistic amount information and the identification map. The medical image processing device acquires imaging information based on the multi-energy imaging, identifies the type of the biomedical tissue on the basis of the identification map, determines the identification degree on the basis of the identification probability map and displays in accordance with the identification.

摘要翻译： 提供了一种医疗图像处理装置，其能够高精度地识别生物医学组织的类型并且显示相对于多能量成像中的医学图像信息的识别度。 医疗图像处理装置在多能量成像的每个能量强度中获取生物医学组织的组织信息（统计量信息，例如平均CT值，CT值的标准偏差等，显示颜色等）。 医疗图像处理装置基于统计量信息创建用于识别生物医学组织的类型的识别图，并且还根据统计量信息创建用于确定生物医学组织的识别度的识别概率图 和识别图。 医疗图像处理装置基于多能量成像获取成像信息，基于识别图来识别生物医学组织的类型，基于识别概率图来确定识别度，并根据识别 。

公开(公告)号：US20070172103A1

公开(公告)日：2007-07-26

申请号：US11578850

申请日：2005-04-27

申请人： Takayuki Kadomura ,  Taiga Goto

发明人： Takayuki Kadomura ,  Taiga Goto

IPC分类号： G06K9/00 ,  G06K9/46

CPC分类号： G06T7/0012 ,  G06T2207/30061

摘要： An image diagnosis supporting system comprising a means for reading in image data representative of the image of a subject acquired by a medical imaging apparatus, a means for detecting an abnormal shadow candidate satisfying at least one of a plurality of criteria for abnormal shadow criteria from the image thus read in, and a means for displaying the image thus read in and a marker indicative of the abnormal shadow candidate thus detected in a superimposed state. The image diagnosis supporting system is further provided with a means for setting criteria supporting judgment of the abnormal shadow candidate detected by the abnormal shadow candidate detecting means as judgment supporting criteria, and a control means for displaying the judgment supporting criteria thus set, the abnormal shadow candidate and the marker simultaneously on the display means. Accordingly, it is possible to support the user in accurately judging the type of an abnormal shadow candidate.

摘要翻译： 一种图像诊断支持系统，包括用于读取表示由医学成像装置获取的对象的图像的图像数据的装置，用于检测满足来自所述异常阴影标准的多个标准中的至少一个的异常阴影候选的装置 以及用于显示如此读取的图像的装置和指示在叠加状态下检测到的异常阴影候选的标记。 图像诊断支持系统进一步设置有用于设置支持由异常阴影候选检测装置检测到的异常阴影候选的判断的标准作为判断支持标准的装置，以及用于显示由此设置的判断支持标准的控制装置，异常阴影 候选人和标记同时在显示装置上。 因此，可以准确地判断异常影子候选的种类，来支持用户。

公开(公告)号：US20050175143A1

公开(公告)日：2005-08-11

申请号：US10515289

申请日：2003-06-03

申请人： Osamu Miyazaki ,  Taiga Goto ,  Hiroto Kokubun

发明人： Osamu Miyazaki ,  Taiga Goto ,  Hiroto Kokubun

IPC分类号： A61B5/0456 ,  A61B6/00 ,  A61B6/03 ,  G21K1/12

CPC分类号： A61B6/4014 ,  A61B5/0456 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4488 ,  A61B6/541

摘要： Three pairs of X-ray tubes (21A-21C) and single- or multiple-row detectors (31A-31C) are mounted on a rotary disc (49) installed in a scanner unit (12) at a rotational phase difference of 120°, and a deviation (offset) ΔZ is set between the three pairs in a rotation axis direction of a subject (16) in accordance with ΔZ=d×N, where d is the thickness of the row of the single- or multiple-row detectors (31A-31C), and N is an offset coefficient. Slice collimators (48A-48C) are provided to X-ray tubes (21A-21C) in the three pairs, and are rotated relative to the subject (16) to provide a high-quality tomographic image with high temporal resolution, less motion artifact and high space resolution.

摘要翻译： 三对X射线管（21A-21C）和单列或多列检测器（31A-31C）以旋转相位安装在安装在扫描仪单元（12）中的旋转盘（49）上 根据DeltaZ = dxN，在被检体（16）的旋转轴方向上的三对之间设定偏差（偏移）ΔZZ，其中d是单次或多次的行的厚度 （31A-31C），N是偏移系数。 将切片准直器（48A-48C）以三对提供给X射线管（21A-21C），并且相对于被摄体（16）旋转，以提供具有高时间分辨率的高质量断层图像 ，较少的运动伪影和高空间分辨率。