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71. 发明授权

US07620443B2 X-ray CT imaging method and X-ray CT device 有权
标题翻译： X射线CT成像方法和X射线CT装置
公开(公告)号：US07620443B2
公开(公告)日：2009-11-17
申请号：US10501121
申请日：2003-01-09
申请人： Hiroto Kokubun , Osamu Miyazaki
发明人： Hiroto Kokubun , Osamu Miyazaki
IPC分类号： A61B5/05 , G06K9/00 , H01J35/00
CPC分类号： A61B6/541 , A61B6/503
摘要： An X-ray CT apparatus can be configured such that an amount of artifacts of a tomographic image of a heart is reduced. For example, the X-ray CT apparatus can include detecting means for detecting a static cardiac time phase with a small amount of motion artifacts in a predetermined portion of the subject based on heartbeat information acquired in association with the projection data, and image reconstructing means for generating the tomographic image by reconstructing projection data corresponding to the static cardiac time phase detected by the detecting means.
摘要翻译：可以配置X射线CT装置，使得心脏的断层图像的伪像量减少。例如，X射线CT装置可以包括检测装置，用于基于与投影数据相关联地获取的心跳信息，在对象的预定部分中检测具有少量运动伪影的静态心脏时间相位，以及图像重建装置用于通过重建与由检测装置检测到的静态心脏时间相对应的投影数据来生成断层图像。

72. 发明申请

US20090202041A1 COMPTON CAMERA DEVICE 失效
标题翻译： COMPTON相机设备
公开(公告)号：US20090202041A1
公开(公告)日：2009-08-13
申请号：US12304284
申请日：2007-06-11
申请人： Takashi Shirahata , Ryota Kohara , Tetsuo Nakazawa , Osamu Miyazaki
发明人： Takashi Shirahata , Ryota Kohara , Tetsuo Nakazawa , Osamu Miyazaki
IPC分类号： G01N23/201 , G01T1/20
CPC分类号： G01T1/1642 , A61B6/4258
摘要： A Compton camera device according to the invention includes first means for reading coordinate data of a scattering point of a quantum ray detected by a pre-stage detector for each Compton scattering event, second means for reading coordinate data of a reaching point of the Compton-scattered quantum ray detected by a post-stage detector for each Compton scattering event, and third means for calculating a measurement accuracy of the scattered quantum ray by the first and second means for each Compton scattering event, calculating a statistical quantity of the quantum ray for each calculated measurement accuracy, and outputting the calculated statistical quantity to image reconstruction means.
摘要翻译：根据本发明的康普顿相机装置包括用于读取由每个康普顿散射事件由前级检测器检测到的量子射线的散射点的坐标数据的第一装置，用于读取康普顿散射事件的到达点的坐标数据的第二装置，用于每个康普顿散射事件由后级检测器检测的散射量子射线;以及第三装置，用于通过第一和第二装置针对每个康普顿散射事件计算散射量子射线的测量精度，计算量子射线的统计量每个计算出的测量精度，并将计算的统计量输出到图像重建装置。

73. 发明申请

US20090141854A1 X-RAY CT APPARATUS 有权
标题翻译： X射线CT装置
公开(公告)号：US20090141854A1
公开(公告)日：2009-06-04
申请号：US12301713
申请日：2007-05-24
申请人： Koichi Hirokawa , Taiga Goto , Yoshiaki Sugaya , Osamu Miyazaki
发明人： Koichi Hirokawa , Taiga Goto , Yoshiaki Sugaya , Osamu Miyazaki
IPC分类号： H05G1/66 , G06K9/00
CPC分类号： A61B6/032 , A61B6/542 , A61B6/545
摘要： An X-ray CT apparatus is provided, having a function for deciding an X-ray imaging condition prior to scanning, the X-ray imaging condition allowing an acquisition of contrast to noise ratio appropriate for identifying a diagnostic object. Prior to the real scan, a three-dimensional model of an object is estimated from scanogram projection data of the object, a contrast to noise ratio enabling identification of the diagnostic object is calculated, based on the diagnostic object size set by an operator via an operating device when planning the scan, the three-dimensional model, and a standard imaging condition that is stored in a storage device. Then, an optimum irradiated X-ray condition (tube current and tube voltage) is calculated for achieving the contrast to noise ratio enabling identification. The X-ray condition being calculated is displayed in the form of information such as image SD value and exposure dose, under the calculated X-ray condition and under other condition.
摘要翻译：提供一种X射线CT装置，其具有用于在扫描之前决定X射线成像条件的功能，所述X射线成像条件允许获取适于识别诊断对象的对比度与噪声比。在真实扫描之前，根据对象的扫描图投影数据估计对象的三维模型，基于由操作者经由操作者设置的诊断对象尺寸来计算能够识别诊断对象的对比度与噪声比规划扫描时的操作装置，三维模型以及存储在存储装置中的标准成像条件。然后，计算最佳照射X射线条件（管电流和管电压），以实现能够识别的对比度与噪声比。在计算的X射线条件下和其他条件下，计算的X射线条件以诸如图像SD值和曝光剂量的信息的形式显示。

74. 发明授权

US07505550B2 Radiotomography apparatus 有权
标题翻译：放射摄影仪
公开(公告)号：US07505550B2
公开(公告)日：2009-03-17
申请号：US11629756
申请日：2005-06-15
申请人： Taiga Goto , Osamu Miyazaki , Koichi Hirokawa , Hiroto Kokubun
发明人： Taiga Goto , Osamu Miyazaki , Koichi Hirokawa , Hiroto Kokubun
IPC分类号： A61B6/00
CPC分类号： G06T11/005 , A61B6/027 , A61B6/032 , A61B6/4085 , A61B6/503 , A61B6/541 , G06T2211/412
摘要： A radiotomograph comprises radiation detecting means which applies radiation from a radiation source to a subject from many direction and detects radiation transmitted through the subject from the directions, a bed on which the subject lies and which can move the subject in the direction of the body axis of the subject, reconstruction parameter setting means which sets reconstruction parameters including the amount of movement of the bed in the direction of the body axis and used to reconstruct, an image of the subject, reconstruction view area calculating means which calculates the reconstruction view area for at least one data segment necessary for reconstruction calculation determined for each position in a space reconstructed according to the set reconstruction parameters, reference segment position setting means which sets a reference segment position in the calculated reconstruction view area according to a phase signal generated by dynamic state analysis of the subject, effective segment calculating means which calculates an effective segment from the data segment containing the set reference segment position using a predetermined weight function, and image creating means for creating an image by reconstructing the calculated effective segment. With this, a radiotomograph both having an improved time resolution and enabling reduced effective radiation exposure can be provided.
摘要翻译：放射图像仪包括辐射检测装置，其从多个方向向受检者施加辐射，并从被检者所在的方向上检测通过被检体的方向传播的辐射，并且可以沿着身体轴线的方向移动受检者重建参数设置装置，其重建参数，其包括床体在身体轴线方向上的运动量并用于重构对象的重建参数，重建视区计算装置，其计算重建视区，根据所设定的重建参数重建的空间中的每个位置确定重建计算所需的至少一个数据段，基准段位置设定装置，根据由动态生成的相位信号，在计算出的重建视区内设定基准段位置分析主题，效果 e段计算装置，其使用预定的权重函数从包含所述设置的参考段位置的数据段计算有效段;以及图像创建装置，用于通过重建所计算的有效段来创建图像。因此，可以提供具有改善的时间分辨率并且能够实现减少的有效辐射暴露的放射图像仪。

75. 发明申请

US20080240336A1 X-Ray Ct Apparatus 有权
标题翻译： X射线照射装置
公开(公告)号：US20080240336A1
公开(公告)日：2008-10-02
申请号：US11887875
申请日：2006-03-31
申请人： Osamu Miyazaki , Koichi Hirokawa , Hironori Ueki
发明人： Osamu Miyazaki , Koichi Hirokawa , Hironori Ueki
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/542
摘要： An X-ray CT apparatus of the present invention includes: an X-ray source which irradiates X-rays; an X-ray detector which is arranged oppositely to the X-ray source and detects the irradiated X-rays; a scanner having a rotary disk which rotatably supports the X-ray source and X-ray detector and a power source of the rotary disk; an image processing device which makes the scanner rotate in a state where an object is inserted in between the X-ray source and the X-ray detector to irradiate the object with X-rays from directions at a plurality of angles, and makes the X-ray detector detect X-rays transmitted through the object in directions at a plurality of angles as projection data, to reconstruct a tomographic image of the object by the use of the projection data in the directions at the plurality of angles; a display device which displays the reconstructed tomographic image; a setting device which sets X-ray irradiation condition candidate by at least one combination of a tube current and a tube voltage for power to be supplied to the X-ray source by the use of a transmission thickness of a scanning subject site of the object; and a control device which supplies the with an X-ray irradiation condition corresponding to the set X-ray irradiation condition candidate, to perform scanning, and in the X-ray CT apparatus, the setting device sets X-ray irradiation condition candidate by at least one combination of a tube current and tube voltage for power to be supplied to the X-ray source by the use of an X-ray absorption coefficient of said scanning subject site of the object, and the control device makes the display device selectably display each of the set X-ray irradiation condition candidates which is provided for a diagnosis of a requested tissue of the object, to take control such that a tomographic image of the object is taken according to the selected X-ray irradiation condition candidate.
摘要翻译：本发明的X射线CT装置包括：照射X射线的X射线源; 与X射线源相对设置的X射线检测器，检测照射的X射线; 扫描器，具有可旋转地支撑X射线源和X射线检测器的旋转盘和旋转盘的电源; 使得扫描仪在X射线源和X射线检测器之间插入物体的状态下旋转的图像处理装置，以从多个角度的方向向X方向照射物体，使X 射线检测器以多个角度的方向检测透过物体的X射线作为投影数据，通过使用多个角度方向的投影数据来重建物体的断层图像; 显示重建的断层图像的显示装置; 设置装置，其通过使用所述物体的扫描对象位置的透射厚度，通过管电流和管电压的至少一个组合来设置X射线照射条件候选，以供应给所述X射线源的功率 ; 以及控制装置，其提供与所设定的X射线照射条件候选相对应的X射线照射条件，以进行扫描，并且在X射线CT装置中，设定装置将X射线照射条件候补设定在用于通过使用物体的所述扫描对象位置的X射线吸收系数向X射线源供给功率的管电流和管电压的至少一个组合，并且所述控制装置使得所述显示装置可选择地显示根据所选择的X射线照射条件候选，设置用于对被检体的要求组织进行诊断的所设定的X射线照射条件候补中的每一个进行控制，使得对象的断层图像被拍摄。

76. 发明申请

US20080056547A1 Image Data Collection Control Method and Image Data Collection System 失效
标题翻译：图像数据采集控制方法和图像数据采集系统
公开(公告)号：US20080056547A1
公开(公告)日：2008-03-06
申请号：US10593359
申请日：2005-03-11
申请人： Hiroto Kokubun , Osamu Miyazaki , Tetsuo Nakazawa
发明人： Hiroto Kokubun , Osamu Miyazaki , Tetsuo Nakazawa
IPC分类号： G06K9/00 , A61B6/03
CPC分类号： A61B6/541 , A61B6/032 , A61B6/5264
摘要： A method includes a periodic motion data input step S208 of receiving input of periodic motion data indicating changes of the periodic motion with time in an object to be examined who is a target of image data collection, a step S214 of estimating fluctuations in the time resolution of the image data with time based on the periodic motion data, designating an image collection range in the object, and adjusting the collection position of the image data such that the image data is collected in the image collection range at a suitable time of image data collection, the estimated time resolution being set in a predetermined suitable range, and an image data collection position control step S216 of relatively moving at least a part of the image data collection range and the collection position of the image data such that the part of the range and the position are superimposed on each other within a time when the image data of the image data collection range has a time resolution within the desired range based on the image data collection conditions.
摘要翻译：一种方法包括周期性运动数据输入步骤S 208，其接收指示被检测对象物体中的周期性运动随时间的变化的周期运动数据的输入，该对象是图像数据收集的目标;步骤S 214，基于周期运动数据随时间分辨图像数据，指定对象中的图像采集范围，以及调整图像数据的收集位置，使得图像数据在图像采集范围内被收集在合适的时间图像数据收集，估计时间分辨率被设置在预定的适当范围内;以及图像数据收集位置控制步骤S 216，其相对移动图像数据收集范围的至少一部分和图像数据的收集位置，使得在图像数据收集范围的图像数据的时间分辨率在t内的时间内，范围和位置的一部分彼此叠加他根据图像数据收集条件预期范围。

77. 发明申请

US20070126730A1 Image processing method, image processing device, computer aided detection, and method for filtering along the time axis 有权
标题翻译：图像处理方法，图像处理装置，计算机辅助检测和时间轴滤波方法
公开(公告)号：US20070126730A1
公开(公告)日：2007-06-07
申请号：US10579514
申请日：2004-11-08
申请人： Taiga Goto , Osamu Miyazaki , Koichi Hirokawa
发明人： Taiga Goto , Osamu Miyazaki , Koichi Hirokawa
IPC分类号： G06T1/00 , G06F17/00
CPC分类号： A61B6/504 , A61B5/02007 , A61B5/055 , A61B6/032 , A61B6/481 , G01R33/56325 , G01R33/5635 , G06T5/002 , G06T5/008 , G06T5/50 , G06T2207/10081 , G06T2207/10088 , G06T2207/10132 , G06T2207/20182 , G06T2207/20224 , G06T2207/30101
摘要： An image processing method comprises: an inputting step of inputting image data which is obtained by imaging a subject for a predetermined period of time with a medical imaging apparatus and is arranged in time series; an extracting along the time axis step of extracting pixels which satisfy a predetermined condition along the time axis from all the pixels arranged in time series for each pixel coordinate position with respect to each pixel in the image data; and a constructing step of constructing a two-dimensional or three-dimensional image based on the pixels extracted along the time axis in the extracting along the time axis step.
摘要翻译：一种图像处理方法包括：输入步骤，输入通过用医学成像装置对被摄体成像一段预定时间而获得的图像数据，并且以时间顺序排列; 沿着时间轴步骤提取相对于图像数据中的每个像素从针对每个像素坐标位置以时间序列布置的全部像素沿时间轴提取满足预定条件的像素; 以及构建步骤，其基于沿着时间轴步骤的提取中沿着时间轴提取的像素构建二维或三维图像。

78. 发明申请

US20070053272A1 Optical pickup 失效
标题翻译：光学拾音
公开(公告)号：US20070053272A1
公开(公告)日：2007-03-08
申请号：US11511743
申请日：2006-08-28
申请人： Yukio Watanabe , Tetsuo Ueyama , Osamu Miyazaki , Kazunori Matsubara , Shinzoh Murakami , Kazuhiro Tsuchida
发明人： Yukio Watanabe , Tetsuo Ueyama , Osamu Miyazaki , Kazunori Matsubara , Shinzoh Murakami , Kazuhiro Tsuchida
IPC分类号： G11B7/135
CPC分类号： G11B7/0903 , G11B7/0916 , G11B7/1353
摘要： An optical pickup includes a hologram element. The hologram element is provided with a hologram pattern including a splitting section for focus which splits light used for the detection of an FES and a splitting section for tracking which splits light used for the detection of a TES. The splitting section for tracking is formed in a region excluding a region interposed between a first virtual straight line and a second virtual straight line. The first virtual straight line is drawn on the hologram element in parallel to an X direction and passes through an optical axis of reflected light entering the hologram element in a state where the objective lens is in a neutral position, and the second virtual straight line is drawn in parallel to the first virtual straight line, while being spaced at a distance d from the first virtual straight line.
摘要翻译：光拾取器包括全息元件。全息元件设置有包括用于聚焦的分割部分的全息图图案，其分割用于检测FES的光和用于跟踪用于检测TES的分离光的分割部分。用于跟踪的分割部分形成在除了插入在第一虚拟直线和第二虚拟直线之间的区域的区域中。第一虚拟直线在全息元件上平行于X方向绘制，并且在物镜处于中立位置的状态下穿过进入全息元件的反射光的光轴，第二虚拟直线为平行于第一虚拟直线绘制，同时与第一虚拟直线间隔开距离d。

79. 发明授权

US07184384B2 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US07184384B2
公开(公告)日：2007-02-27
申请号：US10512188
申请日：2003-04-18
申请人： Tetsuo Ueyama , Keiji Sakai , Renzaburou Miki , Osamu Miyazaki , Yukio Watanabe
发明人： Tetsuo Ueyama , Keiji Sakai , Renzaburou Miki , Osamu Miyazaki , Yukio Watanabe
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0956
摘要： An optical pickup converts a laser beam from a semiconductor laser (1) into a parallel ray with a collimator lens (2), and divides it into a main beam (30), a sub-beam (+1st order component) (31), and a sub-beam (−1st order component) (32) with a gradient multiple-division type phase difference grating (3). After passing through a beam splitter (4), an objective lens (5) condenses the light beams on a track (61) of an optical disc (6), and the reflected light that has passed through the objective lens 5 is reflected at the beam splitter (4) and is guided into optical detectors (8A, 8B, and 8C) by a condensing lens (7). Accordingly, in a tracking error signal detecting method using the push-pull signals of the main beam and sub-beams, an offset produced by an objective lens shift or a disc tilt can be cancelled at low cost without lowering the efficiency of using light.
摘要翻译：光学拾取器将来自半导体激光器（1）的激光束用准直透镜（2）转换成平行光线，并将其分割成主光束（30），子光束（+ 1次分量）（31），和具有梯度多分割型相位差光栅（3）的子光束（-1阶分量）（32）。在通过分束器（4）之后，物镜（5）将光束会聚在光盘（6）的轨道（61）上，并且已经通过物镜5的反射光在分束器（4），并通过聚光透镜（7）被引导到光学检测器（8A，8B和8C）中。因此，在使用主光束和子光束的推挽信号的跟踪误差信号检测方法中，可以以低成本消除由物镜偏移或盘倾斜产生的偏移而不降低使用光的效率。

80. 发明授权

US07006593B2 Method of producing cardiac tomogram and tomograph using x-ray ct apparatus 有权
标题翻译：使用X射线摄影装置制作心脏断层图像和断层摄影术的方法
公开(公告)号：US07006593B2
公开(公告)日：2006-02-28
申请号：US10496420
申请日：2002-11-28
申请人： Hiroto Kokubun , Tetsuo Nakazawa , Osamu Miyazaki
发明人： Hiroto Kokubun , Tetsuo Nakazawa , Osamu Miyazaki
IPC分类号： A61B6/03
CPC分类号： A61B6/541 , A61B6/027 , A61B6/032 , A61B6/4085 , A61B6/503 , Y10S378/901
摘要： In an X-ray CT apparatus having a multi-slice detector, the retrospective ECG (Electrocardiography) gating imaging is applied to helical scans. Discontinuity of projection data generated in the scans is interpolated using data at a heartbeat time phase in 180-degree opposite relation to reduce motion artifacts. Further, projection data at an arbitrary slicing position and in at arbitrary heartbeat time phase are formed utilizing continuous divided projection data obtained above, and by properly combining or gathering them, a tomogram of whole heart, a three-dimensional image thereof, and further, a three-dimensional cardiac moving image in heartbeat time phases with an arbitrary time interval can be continuously and smoothly created.
摘要翻译：在具有多切片检测器的X射线CT装置中，回顾性ECG（心电图）门控成像应用于螺旋扫描。在扫描中产生的投影数据的不连续性使用180度相对关系的心跳时间相位上的数据进行内插，以减少运动伪像。此外，利用上面获得的连续划分的投影数据，并且通过适当地组合或收集全心脏的断层图像及其三维图像，形成任意切片位置和任意心跳时间相位的投影数据，可以连续平稳地创建具有任意时间间隔的心跳时间相位的三维心脏运动图像。

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