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21. 发明授权

US5853365A Magnetic resonance imaging using pulse sequence including trapezoidal-wave gradient 失效
标题翻译：使用包括梯形波梯度的脉冲序列进行磁共振成像
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。

22. 发明授权

US5650724A Magnetic-resonance imaging apparatus 失效
标题翻译：磁共振成像装置
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。

23. 发明授权

US5568051A Magnetic resonance imaging apparatus having superimposed gradient coil 失效
标题翻译：具有叠加梯度线圈的磁共振成像装置
公开(公告)号：US5568051A
公开(公告)日：1996-10-22
申请号：US308968
申请日：1994-09-20
申请人： Hitoshi Yamagata
发明人： Hitoshi Yamagata
IPC分类号： G01R33/385 , G01R33/28
CPC分类号： G01R33/385 , G01R33/3852
摘要： A gradient coil system for a magnetic resonance imaging apparatus is described which has a capability of high-speed switching and high intensity for a certain pulse sequence, for example, a rapid imaging or an angiographic imaging. The gradient coil system comprises multiple coil elements which reduce a load of a gradient amplifier. Each of the coil patterns of the coil elements is formed on an individual substrate and the coil elements are radially superposed. This enables each coil turn to be wide and thin.
摘要翻译：描述了一种用于磁共振成像装置的梯度线圈系统，其具有针对某一脉冲序列的高速切换和高强度的能力，例如快速成像或血管造影成像。梯度线圈系统包括减少梯度放大器的负载的多个线圈元件。线圈元件的每个线圈图案形成在单独的基板上，并且线圈元件被径向叠置。这使得每个线圈的转动变得宽而薄。

24. 发明授权

US08687864B2 Image diagnostic processing device and image diagnostic processing program 有权
标题翻译：图像诊断处理装置和图像诊断处理程序
公开(公告)号：US08687864B2
公开(公告)日：2014-04-01
申请号：US13350458
申请日：2012-01-13
申请人： Sumiaki Matsumoto , Hitoshi Yamagata
发明人： Sumiaki Matsumoto , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T2207/30061
摘要： An image diagnostic processing device includes peripheral region specifying means which specifies a peripheral region connecting to an abnormal candidate region included in an image representing the inside of a subject, and judging means which judges whether the abnormal candidate region is an anatomic abnormal region or not, based on a first feature quantity of the abnormal candidate region and a second feature quantity of the peripheral region.
摘要翻译：图像诊断处理装置包括外围区域指定装置，其指定连接到表示被检体内部的图像中的异常候补区域的外围区域，以及判断装置，其判断异常候补区域是否是解剖异常区域，基于所述异常候选区域的第一特征量和所述周边区域的第二特征量。

25. 发明授权

US08520927B2 Medical image processing apparatus and ultrasonic imaging apparatus 失效
标题翻译：医用图像处理装置和超声波成像装置
公开(公告)号：US08520927B2
公开(公告)日：2013-08-27
申请号：US12651562
申请日：2010-01-04
申请人： Shunsuke Satoh , Hitoshi Yamagata
发明人： Shunsuke Satoh , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06T7/0016 , G06T2207/10132 , G06T2207/30056
摘要： A tumor region setting section sets a liver tumor region for a plurality of ultrasonic image data along a time series acquired by ultrasonically capturing a subject to which a contrast agent has been administered. A TIC generator obtains a time change indicating a time change of the pixel values in the liver tumor region based on the plurality of ultrasonic image data along the time series. A peak-detection section specifies a peak point of the time change and obtains the time and pixel value of that peak point. A first determination section determines the degree of malignancy of the liver tumor based on the time and pixel value of the peak point. A display controller displays the degree of malignancy on a display section.
摘要翻译：肿瘤区域设定部沿着通过超声波捕获施用了造影剂的被检体取得的时间序列，设定多个超声波图像数据的肝肿瘤区域。 TIC发生器基于沿着时间序列的多个超声波图像数据获得表示肝肿瘤区域中的像素值的时间变化的时间变化。峰值检测部分指定时间变化的峰值点，并获得该峰值的时间和像素值。第一判定部基于峰值的时间和像素值来确定肝肿瘤的恶化程度。显示控制器显示显示部分的恶性程度。

26. 发明授权

US08447090B2 Medical image processing apparatus and medical image diagnosis apparatus 有权
标题翻译：医用图像处理装置及医用图像诊断装置
公开(公告)号：US08447090B2
公开(公告)日：2013-05-21
申请号：US13408527
申请日：2012-02-29
申请人： Satoshi Wakai , Hitoshi Yamagata
发明人： Satoshi Wakai , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , A61B2090/364 , G06F19/00 , G06T7/33 , G06T2207/10072 , G06T2207/30048
摘要： A medical image processing apparatus comprises: an acquiring part configured to acquire a morphological image that is formed by a first apparatus and shows the morphology of an organ of an object, and a functional image that is formed by a second apparatus different from the first apparatus and shows the state of the organ; a display; and a processor configured to cause the display to display a synthetic image based on the morphological image and the functional image.
摘要翻译：医疗图像处理装置包括：获取部，其被配置为获取由第一装置形成的形态图像，并且显示对象的器官的形态;以及由与第一装置不同的第二装置形成的功能图像并显示器官的状态; 一个显示器以及处理器，被配置为使显示器基于形态图像和功能图像显示合成图像。

27. 发明授权

US08213699B2 Medical image processing apparatus and medical image diagnosis apparatus 有权
标题翻译：医用图像处理装置及医用图像诊断装置
公开(公告)号：US08213699B2
公开(公告)日：2012-07-03
申请号：US12167561
申请日：2008-07-03
申请人： Satoshi Wakai , Hitoshi Yamagata
发明人： Satoshi Wakai , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , A61B2090/364 , G06F19/00 , G06T7/33 , G06T2207/10072 , G06T2207/30048
摘要： A medical image processing apparatus comprises: an acquiring part configured to acquire a morphological image that is formed by a first apparatus and shows the morphology of an organ of an object, and a functional image that is formed by a second apparatus different from the first apparatus and shows the state of the organ; a display; and a processor configured to cause the display to display a synthetic image based on the morphological image and the functional image.
摘要翻译：医疗图像处理装置包括：获取部，其被配置为获取由第一装置形成的形态图像，并且显示对象的器官的形态;以及由与第一装置不同的第二装置形成的功能图像并显示器官的状态; 一个显示器以及处理器，被配置为使显示器基于形态图像和功能图像显示合成图像。

28. 发明授权

US08121376B2 Diagnostic imaging support processing apparatus and diagnostic imaging support processing program product 有权
标题翻译：诊断成像支持处理设备和诊断成像支持处理程序产品
公开(公告)号：US08121376B2
公开(公告)日：2012-02-21
申请号：US12407087
申请日：2009-03-19
申请人： Sumiaki Matsumoto , Hitoshi Yamagata
发明人： Sumiaki Matsumoto , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T7/64 , G06T2207/10072 , G06T2207/10116 , G06T2207/10132 , G06T2207/30064
摘要： A diagnostic imaging support processing apparatus includes a nodular region determination unit which determines a nodular region included in an image showing the inside of a subject, a polygonal line approximation processing unit which obtains a plurality of nodes constituting a polygonal line that approximates a contour of the nodular region, a reference position determination unit which determines a position of a reference point, and a circularity computation unit which computes the degree of circularity by using areas of a plurality of regions determined based on the plurality of nodes and the reference point.
摘要翻译：诊断图像支持处理装置包括：结节区域确定单元，其确定包括在表示对象内部的图像中的结节区域;多边形线近似处理单元，其获得构成近似于所述对象的轮廓的折线的多个节点结节区域，确定参考点的位置的参考位置确定单元以及通过使用基于多个节点和参考点确定的多个区域的面积来计算圆度度的圆度计算单元。

29. 发明授权

US08121373B2 Image diagnostic processing device and image diagnostic processing program 有权
标题翻译：图像诊断处理装置和图像诊断处理程序
公开(公告)号：US08121373B2
公开(公告)日：2012-02-21
申请号：US11736865
申请日：2007-04-18
申请人： Sumiaki Matsumoto , Hitoshi Yamagata
发明人： Sumiaki Matsumoto , Hitoshi Yamagata
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T2207/30061
摘要： An image diagnostic processing device includes peripheral region specifying means which specifies a peripheral region connecting to an abnormal candidate region included in an image representing the inside of a subject, and judging means which judges whether the abnormal candidate region is an anatomic abnormal region or not, based on a first feature quantity of the abnormal candidate region and a second feature quantity of the peripheral region.
摘要翻译：图像诊断处理装置包括外围区域指定装置，其指定连接到表示被检体内部的图像中的异常候补区域的外围区域，以及判断装置，其判断异常候补区域是否是解剖异常区域，基于所述异常候选区域的第一特征量和所述周边区域的第二特征量。

30. 发明授权

US07978897B2 Computer-aided image diagnostic processing device and computer-aided image diagnostic processing program product 有权
标题翻译：计算机辅助图像诊断处理设备和计算机辅助图像诊断处理程序产品
公开(公告)号：US07978897B2
公开(公告)日：2011-07-12
申请号：US11758907
申请日：2007-06-06
申请人： Hitoshi Yamagata , Sumiaki Matsumoto , Yoshiharu Ohno
发明人： Hitoshi Yamagata , Sumiaki Matsumoto , Yoshiharu Ohno
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： G06T7/0012 , G06T2207/10072 , G06T2207/30061 , G06T2207/30064
摘要： A computer-aided image diagnostic processing apparatus includes a storage unit which stores a medical image representing the inside of a subject, a unit which specifies an anatomical abnormality candidate region included in the medical image, and a generation unit which generates a display image representing the abnormality candidate region and its peripheral region to be discriminable from each other based on the medical image.
摘要翻译：计算机辅助图像诊断处理装置包括：存储单元，其存储表示被检体内部的医用图像，指定医疗图像中包含的解剖异常候选区域的单元;以及生成单元，生成表示所述医疗图像的显示图像异常候选区域及其周边区域基于医学图像彼此区分。

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