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公开(公告)号：US10901060B2
公开(公告)日：2021-01-26
申请号：US15057637
申请日：2016-03-01
IPC分类号： G01R33/565 , G01R33/48 , G01R33/56
摘要： A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry performs first data acquisition in a full k-space and performs a plurality of second data acquisition in partial k-spaces, each of the partial k-spaces being smaller than the entirety of the full k-space. The processing circuitry generates an image, based on data acquired from the first data acquisition and a plurality of pieces of data acquired from the plurality of second data acquisition.
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公开(公告)号：US10552953B2
公开(公告)日：2020-02-04
申请号：US15375865
申请日：2016-12-12
发明人： Satoshi Sugiura
IPC分类号： G06K9/00 , G06T7/00 , G06F3/0484
摘要： A magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry performs first imaging to acquire multiple magnetic resonance signals that are used to derive a quantitative value of tissue. The processing circuitry derives a quantitative value of tissue on the basis of the multiple magnetic resonance signals. The processing circuitry displays, on a display, an estimated image obtained by estimating, through a calculation, an image to be obtained by performing second imaging different from the first imaging on the basis of the derived quantitative value of tissue. The processing circuitry acquires an image by performing the second imaging in which an imaging parameter corresponding to the estimated image is set.
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3.发明申请公开(公告)号：US20170030991A1
公开(公告)日：2017-02-02
申请号：US15211181
申请日：2016-07-15
发明人： Seiji NOZAKI , Satoshi Sugiura
IPC分类号： G01R33/565 , G01R33/38 , G01R33/3815
摘要： According to at least one of embodiments, a magnetic resonance imaging apparatus includes a superconducting magnet configured to generate a static magnetic field; a cryocooler configured to cool down the superconducting magnet in a refrigeration cycle in which mechanical fluctuation with a predetermined period is included; a sequence controller configured to acquire magnetic resonance signals for generating a diagnostic image from an object; and processing circuitry configured to correct phase fluctuation included in the magnetic resonance signals for generating a diagnostic image acquired by the sequence controller, the phase fluctuation being generated by periodic fluctuation of the static magnetic field caused by mechanical fluctuation of the cryocooler.
摘要翻译： 根据至少一个实施例，磁共振成像装置包括被配置为产生静态磁场的超导磁体; 低温冷冻机构造成在包含规定时间的机械波动的制冷循环中冷却超导磁体; 序列控制器，被配置为获取用于从对象生成诊断图像的磁共振信号; 以及处理电路，被配置为校正包括在所述磁共振信号中的相位波动，用于产生由所述序列控制器获取的诊断图像，所述相位波动是由由所述低温冷却器的机械波动引起的静态磁场的周期性波动产生的。
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4.发明授权MRI diffusion weighted imaging with estimated motion probing gradient b-factors based on acquired apparent diffusion coefficients for each pixel 有权基于每个像素获得的表观扩散系数的估计运动探测梯度b因子的MRI扩散加权成像公开(公告)号：US09031635B2
公开(公告)日：2015-05-12
申请号：US14243268
申请日：2014-04-02
CPC分类号： G01R33/5602 , A61B5/055 , A61B5/7285 , G01R33/543 , G01R33/56341 , G06T11/003
摘要： A magnetic resonance diagnostic apparatus includes a derivation unit to derive an apparent diffusion coefficient regarding a pixel position for each pixel position included in a region of interest in at least two original images obtained by imaging a same imaging region of a same subject using at least two b-factors that are different from each other, respectively, based on pixel values of each of at least two original images regarding the pixel positions, and a first estimation unit to estimate a pixel value obtained by using a b-factor that is different from the at least two b-factors, regarding each pixel position included in the region of interest, based on the apparent diffusion coefficient derived for each pixel position.
摘要翻译： 磁共振诊断装置包括导出单元，用于通过使用至少两个成像方法对相同被摄体的相同成像区域进行成像而获得的至少两个原始图像中，导出关于包括在感兴趣区域中的每个像素位置的像素位置的表观扩散系数 分别基于关于像素位置的至少两个原始图像中的每一个的像素值彼此不同的b因子，以及第一估计单元，用于估计通过使用不同于的像素的b因子而获得的像素值 基于对于每个像素位置导出的表观扩散系数，关于包括在感兴趣区域中的每个像素位置的至少两个b因子。
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5.发明授权公开(公告)号：US10459057B2
公开(公告)日：2019-10-29
申请号：US14820933
申请日：2015-08-07
摘要： An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a region of body fluid flowing in a subject from time-series images acquired by scanning an imaging area including a tagged region to which a tagging pulse is applied and imaging the imaging area; generate a plurality of display images in which the detected body fluid region is displayed in a display mode determined based on a positional relation between the body fluid region and a boundary line, the boundary line determined based on the tagged region; and output time-series display images including the plurality of display images to be displayed on a display.
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公开(公告)号：US10330761B2
公开(公告)日：2019-06-25
申请号：US15378183
申请日：2016-12-14
发明人： Satoshi Sugiura
IPC分类号： G01R33/50 , G01R33/483 , G01R33/563
摘要： According to one embodiment, a magnetic resonance imaging apparatus includes control circuitry. The control circuitry executes, by a single protocol, acquisition of a distribution of a T1 relaxation time with a first slice as a target, and acquisition of a different kind from the distribution of the T1 relaxation time with a second slice as a target which neither overlaps nor crosses a region of interest of the first slice.
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7.发明授权公开(公告)号：US09232908B2
公开(公告)日：2016-01-12
申请号：US13646205
申请日：2012-10-05
发明人： Satoshi Sugiura
IPC分类号： G01R33/32 , A61B5/055 , A61B5/026 , G01R33/48 , G01R33/54 , A61B5/00 , G01R33/483 , G01R33/56 , G01R33/563 , G01R33/567
CPC分类号： G01R33/543 , A61B5/0263 , A61B5/055 , A61B5/7285 , A61B5/742 , G01R33/307 , G01R33/3607 , G01R33/385 , G01R33/4818 , G01R33/4828 , G01R33/4833 , G01R33/54 , G01R33/546 , G01R33/5602 , G01R33/5607 , G01R33/563 , G01R33/56308 , G01R33/5635 , G01R33/56366 , G01R33/5673 , G01R33/5676
摘要： According to a Magnetic Resonance Imaging (MRI) apparatus, a scanning-parameter limit calculating unit creates examination information that represents scanning conditions for collection of magnetic resonance signal data based on scanning parameters set by an operator; a scanning-condition edit/scan positioning unit creates a time chart that indicates the type and a sequential execution order of an event to be executed when collecting magnetic resonance signal data based on the examination information created by the scanning-parameter limit calculating unit, and causes a time-chart display unit to display the created time chart.
摘要翻译： 根据磁共振成像（MRI）装置，扫描参数限制计算单元基于由操作者设置的扫描参数来创建表示用于收集磁共振信号数据的扫描条件的检查信息; 扫描条件编辑/扫描定位单元创建指示基于由扫描参数限制计算单元创建的检查信息收集磁共振信号数据时要执行的事件的类型和顺序执行顺序的时间图，以及 使时间表显示单元显示创建的时间图。
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公开(公告)号：US12029543B2
公开(公告)日：2024-07-09
申请号：US16371878
申请日：2019-04-01
发明人： Satoshi Sugiura
CPC分类号： A61B5/055 , A61B6/5247 , A61B5/7425 , A61B6/03 , A61B6/463 , A61B6/469 , A61B6/5223
摘要： A medical image diagnostic apparatus has an imaging unit that images volume data of a region-of-interest of an object, an extracting unit that extracts a characteristic point from the volume data; and, a generating unit that generates an observation sectional image from the volume data using the characteristic point and correlation parameters.
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公开(公告)号：US10459046B2
公开(公告)日：2019-10-29
申请号：US15211181
申请日：2016-07-15
发明人： Seiji Nozaki , Satoshi Sugiura
IPC分类号： G01R33/565 , G01R33/38 , G01R33/3815
摘要： According to at least one of embodiments, a magnetic resonance imaging apparatus includes a superconducting magnet configured to generate a static magnetic field; a cryocooler configured to cool down the superconducting magnet in a refrigeration cycle in which mechanical fluctuation with a predetermined period is included; a sequence controller configured to acquire magnetic resonance signals for generating a diagnostic image from an object; and processing circuitry configured to correct phase fluctuation included in the magnetic resonance signals for generating a diagnostic image acquired by the sequence controller, the phase fluctuation being generated by periodic fluctuation of the static magnetic field caused by mechanical fluctuation of the cryocooler.
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公开(公告)号：US09213075B2
公开(公告)日：2015-12-15
申请号：US13677716
申请日：2012-11-15
IPC分类号： G01V3/00 , G01R33/54 , G01R33/34 , G01R33/56 , G01R33/561 , G01R33/563 , G01R33/567
CPC分类号： G01R33/543 , G01R33/34 , G01R33/5608 , G01R33/5611 , G01R33/5614 , G01R33/56325 , G01R33/56341 , G01R33/5673
摘要： A magnetic resonance imaging apparatus includes: a sequence controlling unit that, by controlling an execution of a pulse sequence, acquires magnetic resonance (MR) signals corresponding to a plurality of channels in the pulse sequence executed as a series, the MR signals being configured to be arranged into a first region of a k-space at first intervals and into a second region larger than the first region at second intervals larger than the first intervals; an arranging unit that arranges the MR signals corresponding to the channels into the k-space as k-space data; and an image generating unit that generates first-interval k-space data corresponding to the channels based on the second-interval k-space data acquired by executing the pulse sequence and generates a magnetic resonance image based on the generated first-interval k-space data, the first-interval k-space data acquired by executing the pulse sequence, and sensitivity distributions corresponding to the channels.
摘要翻译： 磁共振成像装置包括：序列控制单元，其通过控制脉冲序列的执行获取与以串行执行的脉冲序列中的多个通道对应的磁共振（MR）信号，MR信号被配置为 以第一间隔被布置到k空间的第一区域中，并且以大于第一间隔的第二间隔进入比第一区域大的第二区域; 布置单元，将与所述通道相对应的MR信号布置为k空间数据; 以及图像生成单元，其基于通过执行所述脉冲序列获取的所述第二间隔k空间数据生成与所述通道对应的第一间隔k空间数据，并且基于所生成的第一间隔k空间生成磁共振图像 数据，通过执行脉冲序列获取的第一间隔k空间数据，以及对应于信道的灵敏度分布。
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