公开(公告)号：US09202261B2

公开(公告)日：2015-12-01

申请号：US13402435

申请日：2012-02-22

申请人： Hongfeng Ma ,  Pin Zhang ,  Yanli Wang ,  Hitoshi Yamagata

发明人： Hongfeng Ma ,  Pin Zhang ,  Yanli Wang ,  Hitoshi Yamagata

IPC分类号： G06T5/00 ,  G06T5/50

CPC分类号： G06T5/002 ,  G06T5/50 ,  G06T2207/30004

摘要： The disclosure provides an image processing apparatus and method. The image processing apparatus may include: a filter for performing an iterative filtering on an input image; and an iterative filtering stopping device for determining whether to stop the iterative filtering according to a variation speed of the filtered image obtained from each iteration of the iterative filtering with increasing of iteration times.

摘要翻译： 本公开提供了一种图像处理装置和方法。 图像处理装置可以包括：用于对输入图像执行迭代滤波的滤波器; 以及迭代滤波停止装置，用于根据迭代滤波的迭代的迭代速度随着迭代次数的增加而确定是否停止迭代滤波。

公开(公告)号：US09665918B2

公开(公告)日：2017-05-30

申请号：US13478410

申请日：2012-05-23

申请人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Yasuo Sakurai ,  Atsuko Sugiyama

发明人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Yasuo Sakurai ,  Atsuko Sugiyama

IPC分类号： G06Q50/22 ,  G06Q50/24

CPC分类号： G06Q50/22 ,  G06F19/00 ,  G06Q50/24

摘要： A medical data generating apparatus includes a data processing unit, a work-status data generation unit, a display unit and a work-status restoration unit. The data processing unit acquires medical data from a database to perform data processing. The work-status data generation unit generates work-status data as a data record of medical data. The work-status data indicates a work status of the data processing. The display unit acquires medical data including at least one piece of work-status data from the database to list the acquired pieces of the medical data on a display device together with identification information of the acquired piece of the work-status data. The work-status restoration unit restores a work status of a data processing corresponding to a selected piece of work-status data based on the selected piece of the work-status data.

公开(公告)号：US09078568B2

公开(公告)日：2015-07-14

申请号：US12973146

申请日：2010-12-20

申请人： Kota Aoyagi ,  Hitoshi Yamagata

发明人： Kota Aoyagi ,  Hitoshi Yamagata

IPC分类号： A61B1/00 ,  A61B1/04 ,  A61B6/03 ,  A61B6/00 ,  G06T1/00 ,  A61B5/06

CPC分类号： A61B6/032 ,  A61B1/00009 ,  A61B1/0005 ,  A61B1/04 ,  A61B5/06 ,  A61B5/062 ,  A61B6/50 ,  A61B6/5247 ,  G06F19/00 ,  G06T1/00

摘要： The medical image processing device comprises a detection part, a storage part, an image generation part, and a display-control part. The detection part detects positions and directions of an endoscope. The storage part stores medical image data showing tubular tissues generated by a medical imaging device different from the endoscope. The image generation part generates virtual endoscopic image data showing the internal portion of the tubular tissues based on the medical image data having a position that is a predetermined distance away from the position of the endoscope as a viewpoint. The display-control part receives endoscopic image data showing the internal portion of the tubular tissues generated by the endoscope and displays an endoscopic image based on the endoscopic image data and a virtual endoscopic image based on the virtual endoscopic image data on a display part.

摘要翻译： 医疗图像处理装置包括检测部，存储部，图像生成部以及显示控制部。 检测部检测内窥镜的位置和方向。 存储部存储表示由与内窥镜不同的医疗摄像装置生成的管状组织的医学图像数据。 图像生成部基于具有距离内窥镜的位置为止的位置的医疗用图像数据为视点，生成示出管状组织的内部的虚拟内窥镜图像数据。 显示控制部接收内窥镜图像数据，该内窥镜图像数据示出由内窥镜生成的管状组织的内部部分，并且在显示部上基于虚拟内窥镜图像数据，基于内窥镜图像数据和虚拟内窥镜图像显示内窥镜图像。

公开(公告)号：US08520915B2

公开(公告)日：2013-08-27

申请号：US11854107

申请日：2007-09-12

申请人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Keisuke Hashimoto ,  Atsuko Sugiyama

发明人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Keisuke Hashimoto ,  Atsuko Sugiyama

IPC分类号： G06K9/00

CPC分类号： A61B6/488 ,  A61B6/50

摘要： A medical image diagnosis apparatus designates an imaging range of a subject from a projection image for designation of the imaging range, specifies a specific spot on the projection image, performs scanning for generating a three-dimensional medical image of the subject on the basis of the imaging range, finds out a three-dimensional target region from the three-dimensional medical image on the basis of the specific spot, and detects a candidate for an abnormal part in the three-dimensional target region.

摘要翻译： 医用图像诊断装置从投影图像中指定成像范围的指定对象的摄像范围，指定投影图像上的特定斑点，根据该图像进行用于生成被检者的三维医学图像的扫描 基于该特定光斑从三维医学图像中求出三维目标区域，并且检测三维目标区域中的异常部分的候选。

公开(公告)号：US08340374B2

公开(公告)日：2012-12-25

申请号：US11969387

申请日：2008-01-04

申请人： Hitoshi Yamagata

发明人： Hitoshi Yamagata

IPC分类号： G06K9/00

CPC分类号： A61B6/032 ,  A61B6/12 ,  A61B6/466 ,  A61B6/5247 ,  A61B8/0833 ,  A61B8/13 ,  A61B8/4245 ,  A61B8/4254 ,  A61B8/483 ,  A61B8/5238 ,  G01S7/52074 ,  G01S7/52084 ,  G01S15/8915 ,  G01S15/8929 ,  G01S15/899 ,  G01S15/8993 ,  G06F19/00 ,  G06F19/321 ,  G06T19/00 ,  G06T2219/028 ,  G06T2219/2004

摘要： A 3-dimensional diagnostic imaging system for acquiring and displaying 3-dimensional images includes an ultrasound diagnostic imaging apparatus configured to display any cross section of a 3-dimensional image extracted from volume data including an affected part of a subject; a 3-dimensional medical diagnostic imaging apparatus configured to display a cross section of a 3-dimensional image extracted from volume data obtained by medical diagnostic imaging modalities other than the ultrasound diagnostic imaging apparatus, the cross section being substantially identical to the cross section displayed by the ultrasound diagnostic imaging apparatus; and an image processing/display unit configured to synchronously display substantially identical cross sections of a plurality of 3-dimensional images from both the ultrasound diagnostic imaging apparatus and the 3-dimensional medical diagnostic imaging apparatus, or to synchronously display substantially identical cross sections of a plurality of 3-dimensional images extracted from volume data obtained by the same medical diagnostic imaging modality at different times.

摘要翻译： 用于获取和显示三维图像的三维诊断成像系统包括：超声诊断成像装置，被配置为显示从包括受试者的受影响部分的体积数据中提取的三维图像的任何横截面; 一种三维医学诊断成像装置，其被配置为显示从超声诊断成像装置以外的医疗诊断成像模式获得的体积数据中提取的3维图像的截面，截面大致与由 超声诊断成像装置; 以及图像处理/显示单元，被配置为从所述超声诊断成像设备和所述三维医学诊断成像设备同步地显示多个三维图像的基本相同的横截面，或同步显示基本相同的横截面 从在不同时间由同一医疗诊断成像模式获得的体数据提取的多个3维图像。

公开(公告)号：US20090198123A1

公开(公告)日：2009-08-06

申请号：US12363060

申请日：2009-01-30

申请人： Kota Aoyagi ,  Hitoshi Yamagata ,  Takehiro Ema ,  Kyoko Sato ,  Shunsuke Satoh

发明人： Kota Aoyagi ,  Hitoshi Yamagata ,  Takehiro Ema ,  Kyoko Sato ,  Shunsuke Satoh

IPC分类号： A61B5/0275 ,  A61B8/06 ,  A61B6/00 ,  A61B5/055

CPC分类号： A61B8/481 ,  A61B8/06 ,  A61B8/08 ,  A61B8/13 ,  A61B8/463 ,  A61B8/488 ,  A61B8/5238

摘要： A differential-image creating unit creates a three-dimensional image on which an artery is highlighted and a three-dimensional image on which a tumor is highlighted. An image compositing unit combines the three-dimensional images to composite an image. A display control unit displays the composite image on a monitor. Moreover, when compositing an image, the image compositing unit composites the image such that a tumor nutrient blood-flow inside and outside tumor is to be displayed in respective different colors. Furthermore, a blood-flow quantity inside tumor measuring unit calculates a blood-flow quantity inside tumor and a ratio of the blood-flow quantity inside tumor to a tumor volume, and the display control unit displays the blood-flow quantity inside tumor and the ratio of the blood-flow quantity inside tumor to the tumor volume. Accordingly, information that is meaningful for determining malignancy of a tumor can be provided.

摘要翻译： 差分图像创建单元创建其上突出有动脉的三维图像和突出显示肿瘤的三维图像。 图像合成单元将三维图像组合成图像。 显示控制单元在监视器上显示合成图像。 此外，当合成图像时，图像合成单元复合图像，使得肿瘤内外的肿瘤营养血流以各自的不同颜色显示。 此外，肿瘤测量单元内的血流量计算肿瘤内部的血流量和肿瘤内的血流量与肿瘤体积的比例，显示控制单元显示肿瘤内的血流量， 肿瘤内血流量与肿瘤体积的比值。 因此，可以提供对于确定肿瘤恶性肿瘤有意义的信息。

公开(公告)号：US20080063136A1

公开(公告)日：2008-03-13

申请号：US11854107

申请日：2007-09-12

申请人： Shigeharu OHYU ,  Hitoshi Yamagata ,  Keisuke Hashimoto ,  Atsuko Sugiyama

发明人： Shigeharu OHYU ,  Hitoshi Yamagata ,  Keisuke Hashimoto ,  Atsuko Sugiyama

IPC分类号： A61B6/00 ,  A61B5/00 ,  G06K9/00

CPC分类号： A61B6/488 ,  A61B6/50

摘要： A medical image diagnosis apparatus designates an imaging range of a subject from a projection image for designation of the imaging range, specifies a specific spot on the projection image, performs scanning for generating a three-dimensional medical image of the subject on the basis of the imaging range, finds out a three-dimensional target region from the three-dimensional medical image on the basis of the specific spot, and detects a candidate for an abnormal part in the three-dimensional target region.

摘要翻译： 医用图像诊断装置从投影图像中指定成像范围的指定对象的摄像范围，指定投影图像上的特定斑点，根据该图像进行用于生成被检者的三维医学图像的扫描 基于该特定光斑从三维医学图像中求出三维目标区域，并且检测三维目标区域中的异常部分的候选。

公开(公告)号：US07034535B2

公开(公告)日：2006-04-25

申请号：US10896083

申请日：2004-07-22

申请人： Hitoshi Yamagata

发明人： Hitoshi Yamagata

IPC分类号： G01V3/00 ,  A61B5/055

CPC分类号： G01R33/3806 ,  A61B5/0555

摘要： In a magnetic resonance imaging apparatus, a transmitting/receiving coil is attached to a patient at a region of interest and disposed within a static magnetic field, a radio-frequency magnetic field, and a gradient magnetic field and an image of the patient is obtained. A tabletop is used to move the patient in the static field in a horizontal direction within a horizontal plane and up and down in a direction that is perpendicular to the horizontal plane, a patient couch controller causing the tabletop to move, based on the position of the region of interest obtained from the image, so that the position of the region of interest is caused to coincide in three dimensions with the center of the static magnetic field and/or the gradient magnetic field.

摘要翻译： 在磁共振成像装置中，发射/接收线圈在感兴趣的区域附接到患者，并且设置在静态磁场，射频磁场和梯度磁场中，并且获得患者的图像 。 桌面用于在水平面内的水平方向上的静态场中移动病人，并且在垂直于水平面的方向上上下移动病人，患者的沙发控制器使桌面移动，基于位置 从图像获得的感兴趣区域，使得感兴趣区域的位置被三维地与静磁场和/或梯度磁场的中心重合。

公开(公告)号：US5853365A

公开(公告)日：1998-12-29

申请号：US828269

申请日：1997-03-21

申请人： Hitoshi Yamagata

发明人： Hitoshi Yamagata

IPC分类号： G01R33/48 ,  A61B5/055 ,  G01R33/563

CPC分类号： G01R33/56308

摘要： A method to null a phase relevant to a high-order moment and minimize an echo time TE when a GMN or flow-encoding gradient pulse is employed. The first to n-th trapezoidal-wave pulses of which polarities are alternately mutually opposite are applied as a gradient pulse. The amplitude g and pulse duration t of the first trapezoidal-wave pulse, and the slope k of pulses of the first trapezoidal-wave pulse are given as initial values. Parameters including a plurality of known pulse duration coefficients b.sub.1, b.sub.2, etc. determining pulse durations b.sub.1.t, b.sub.2.t, etc. of the first to n-th trapezoidal-wave pulses, and unknown magnetic field gradient strength coefficients a.sub.1, a.sub.2, etc. determining amplitudes a.sub.1.g, a.sub.2.g, etc. of the second and subsequent trapezoidal-wave pulses are given. Expressions concerning phases of nuclear spins producing an MR signal are solved analytically so that the values of terms of phases relevant to moments in the expressions can be controlled to be desired values or nulled according to the purpose of use of the gradient pulse. A combination of the coefficients b.sub.1, b.sub.2, etc. satisfying the results of the analysis, in which the coefficient b.sub.3 for a pulse interval defining the pulse spacing of the n-th trapezoidal-wave pulse has the smallest value, is selected.

摘要翻译： 当使用GMN或流编码梯度脉冲时，使与高阶矩有关的相位失真并使回波时间TE最小化的方法。 极性相互相反的第一至第n梯形波脉冲作为梯度脉冲施加。 将第一梯形波脉冲的振幅g和脉冲持续时间t以及第一梯形波脉冲的脉冲斜率k作为初始值。 包括确定第一至第n梯形波脉冲的脉冲持续时间b1.t，b2.t等的多个已知脉冲持续时间系数b1，b2等的参数以及未知的磁场梯度强度系数a1，a2 给出确定第二和随后的梯形波脉冲的幅度a1.g，a2.g等的幅度。 关于产生MR信号的核旋转相位的表达式被分析地求解，使得可以根据梯度脉冲的使用目的将与表达式中的力矩相关的相位项的值控制为期望值或置零。 选择满足分析结果的系数b1，b2等的组合，其中用于定义第n个梯形波脉冲的脉冲间隔的脉冲间隔的系数b3具有最小值。

公开(公告)号：US5650724A

公开(公告)日：1997-07-22

申请号：US302167

申请日：1994-09-08

申请人： Hitoshi Yamagata

发明人： Hitoshi Yamagata

IPC分类号： A61B5/055 ,  G01R33/34 ,  G01R33/3875 ,  G01V3/00 ,  G01V3/14

CPC分类号： G01R33/385 ,  G01R33/3875

摘要： A magnetic-resonance imaging apparatus of the present invention comprises a gantry having a subject-placeable inner space and a local coil assembly insertable into an inner space of the gantry. The gantry has a static magnetic field magnet for creating a static magnetic field, a gradient magnetic field coil unit for creating, in the static magnetic field, a gradient magnetic field whose magnetic field intensity is varied in accordance with a position so that spatial position information may be imparted to a magnetic-resonance signal, a transmit/receive coil for exciting the subject with a high-frequency magnetic field and receiving a magnetic-resonance signal induced from the subject, and a first shim coil unit for correcting those inhomogeneous magnetic field components of the static magnetic field. The local coil assembly is equipped with a second shim coil unit for correcting those inhomogeneous magnetic field components of the static magnetic field.

摘要翻译： 本发明的磁共振成像装置包括具有被检体内部空间的台架和可插入台架的内部空间的局部线圈组件。 台架具有用于产生静磁场的静磁场磁体，用于在静磁场中产生磁场强度根据位置变化的梯度磁场的梯度磁场线圈单元，使得空间位置信息 可以赋予磁共振信号，用于以高频磁场激励对象的发送/接收线圈和接收从被摄体感应的磁共振信号，以及用于校正这些不均匀磁场的第一垫片线圈单元 静磁场的成分。 本地线圈组件装备有用于校正静磁场的不均匀磁场分量的第二垫片线圈单元。