公开(公告)号：US20110071384A1

公开(公告)日：2011-03-24

申请号：US12888239

申请日：2010-09-22

申请人： Tokunori Kimura ,  Masato Ikedo

发明人： Tokunori Kimura ,  Masato Ikedo

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/417 ,  A61B5/489 ,  G01R33/50 ,  G01R33/5601 ,  G01R33/5607 ,  G01R33/5608 ,  G01R33/5616 ,  G01R33/56308 ,  G01R33/5635 ,  G01R33/56536

摘要： A magnetic resonance imaging apparatus includes an acquisition unit that acquires first data in which a tissue of interest has higher signal intensity than a background and second data in which the tissue of interest has lower signal intensity than the background, with regard to images of the same region of the same subject, and a generation unit that generates, on the basis of the first data and the second data, third data in which the contrast of the tissue of interest to the background is higher than those in the first and second data.

摘要翻译： 磁共振成像装置包括获取单元，其获取其中感兴趣的组织具有比背景更高的信号强度的第一数据，其中感兴趣组织的信号强度比背景的信号强度低的第二数据，关于图像的图像 区域，以及生成单元，其基于第一数据和第二数据生成第三数据，其中感兴趣组织对背景的对比度高于第一和第二数据中的对比度。

公开(公告)号：US20080071167A1

公开(公告)日：2008-03-20

申请号：US11898299

申请日：2007-09-11

申请人： Masato Ikedo ,  Tokunori Kimura

发明人： Masato Ikedo ,  Tokunori Kimura

IPC分类号： A61B5/05

CPC分类号： G01R33/56316 ,  G01R33/543 ,  G01R33/5602 ,  G01R33/5607 ,  G01R33/5611 ,  G01R33/5615 ,  G01R33/5635 ,  G01R33/56509 ,  G01R33/56545

摘要： A magnetic resonance imaging diagnostic apparatus includes a generating unit which generates a slice gradient magnetic field, a phase-encode gradient magnetic field and a read-out gradient magnetic field that extend in a slice axis, a phase-encode axis and a read-out axis, respectively, a setting unit which sets a dephase amount for weighting a signal-level decrease resulting from flows in the arteries and veins present in a region of interest of a subject, with respect to at least one axis selected form the slice axis, phase-encode axis and read-out axes, and a control unit which controls the generating unit by using a pulse sequence for a gradient echo system, which includes a dephase gradient-magnetic-field pulse that corresponds to the dephase amount set by the setting unit for the at least one axis.

摘要翻译： 磁共振成像诊断装置包括：生成单元，其生成切片梯度磁场，相位编码梯度磁场和读取梯度磁场，其在切片轴，相位编码轴和读出位置 设置单元，其设置相对于从切片轴选择的至少一个轴，对存在于对象的感兴趣区域的动脉和静脉中的流动而产生的信号电平降低进行加权的去相位量， 相位编码轴和读出轴;以及控制单元，其通过使用用于梯度回波系统的脉冲序列来控制生成单元，该梯度回波系统包括与由设定设定的去相位量对应的去相位梯度磁场脉冲 至少一个轴的单位。

公开(公告)号：US09538936B2

公开(公告)日：2017-01-10

申请号：US12292527

申请日：2008-11-20

申请人： Tokunori Kimura ,  Masato Ikedo

发明人： Tokunori Kimura ,  Masato Ikedo

IPC分类号： A61B5/055 ,  A61B5/00 ,  G01R33/50 ,  G01R33/56 ,  G01R33/561 ,  G01R33/563

CPC分类号： A61B5/055 ,  A61B5/417 ,  A61B5/489 ,  G01R33/50 ,  G01R33/5601 ,  G01R33/5607 ,  G01R33/5608 ,  G01R33/5616 ,  G01R33/56316 ,  G01R33/5635

摘要： A magnetic resonance imaging apparatus includes an acquisition unit which acquires first data in which a tissue of interest has higher signal intensity than a background and second data in which the tissue of interest has lower signal intensity than the background, with regard to images of the same region of the same subject, and a generation unit which generates, on the basis of the first data and the second data, third data in which the contrast of the tissue of interest to the background is higher than those in the first and second data.

摘要翻译： 磁共振成像装置包括获取单元，其获取其中感兴趣组织具有比背景更高的信号强度的第一数据，其中感兴趣的组织具有比背景更低的信号强度的第二数据，关于该图像的图像 区域，以及生成单元，其基于第一数据和第二数据生成第三数据，其中感兴趣组织对背景的对比度高于第一和第二数据中的对比度。

公开(公告)号：US09201129B2

公开(公告)日：2015-12-01

申请号：US11898299

申请日：2007-09-11

申请人： Masato Ikedo ,  Tokunori Kimura

发明人： Masato Ikedo ,  Tokunori Kimura

IPC分类号： A61B5/05 ,  G01R33/563 ,  G01R33/54 ,  G01R33/56 ,  G01R33/561 ,  G01R33/565

CPC分类号： G01R33/56316 ,  G01R33/543 ,  G01R33/5602 ,  G01R33/5607 ,  G01R33/5611 ,  G01R33/5615 ,  G01R33/5635 ,  G01R33/56509 ,  G01R33/56545

摘要： A magnetic resonance imaging diagnostic apparatus includes a generating unit which generates a slice gradient magnetic field, a phase-encode gradient magnetic field and a read-out gradient magnetic field that extend in a slice axis, a phase-encode axis and a read-out axis, respectively, a setting unit which sets a dephase amount for weighting a signal-level decrease resulting from flows in the arteries and veins present in a region of interest of a subject, with respect to at least one axis selected form the slice axis, phase-encode axis and read-out axes, and a control unit which controls the generating unit by using a pulse sequence for a gradient echo system, which includes a dephase gradient-magnetic-field pulse that corresponds to the dephase amount set by the setting unit for the at least one axis.

摘要翻译： 磁共振成像诊断装置包括：生成单元，其生成切片梯度磁场，相位编码梯度磁场和读取梯度磁场，其在切片轴，相位编码轴和读出位置 设置单元，其设置相对于从切片轴选择的至少一个轴，对存在于对象的感兴趣区域的动脉和静脉中的流动而产生的信号电平降低进行加权的去相位量， 相位编码轴和读出轴;以及控制单元，其通过使用用于梯度回波系统的脉冲序列来控制生成单元，该梯度回波系统包括与由设定设定的去相位量对应的去相位梯度磁场脉冲 至少一个轴的单位。

公开(公告)号：US20090076374A1

公开(公告)日：2009-03-19

申请号：US12292527

申请日：2008-11-20

申请人： Tokunori Kimura ,  Masato Ikedo

发明人： Tokunori Kimura ,  Masato Ikedo

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/417 ,  A61B5/489 ,  G01R33/50 ,  G01R33/5601 ,  G01R33/5607 ,  G01R33/5608 ,  G01R33/5616 ,  G01R33/56316 ,  G01R33/5635

摘要： A magnetic resonance imaging apparatus includes an acquisition unit which acquires first data in which a tissue of interest has higher signal intensity than a background and second data in which the tissue of interest has lower signal intensity than the background, with regard to images of the same region of the same subject, and a generation unit which generates, on the basis of the first data and the second data, third data in which the contrast of the tissue of interest to the background is higher than those in the first and second data.

摘要翻译： 磁共振成像装置包括获取单元，其获取其中感兴趣组织具有比背景更高的信号强度的第一数据，其中感兴趣的组织具有比背景更低的信号强度的第二数据，关于该图像的图像 区域，以及生成单元，其基于第一数据和第二数据生成第三数据，其中感兴趣组织对背景的对比度高于第一和第二数据中的对比度。

公开(公告)号：US10219721B2

公开(公告)日：2019-03-05

申请号：US12888239

申请日：2010-09-22

申请人： Tokunori Kimura ,  Masato Ikedo

发明人： Tokunori Kimura ,  Masato Ikedo

IPC分类号： A61B5/00 ,  A61B5/055 ,  G01R33/565 ,  G01R33/563 ,  G01R33/50 ,  G01R33/56 ,  G01R33/561

摘要： A magnetic resonance imaging apparatus includes an acquisition unit that acquires first data in which a tissue of interest has higher signal intensity than a background and second data in which the tissue of interest has lower signal intensity than the background, with regard to images of the same region of the same subject, and a generation unit that generates, on the basis of the first data and the second data, third data in which the contrast of the tissue of interest to the background is higher than those in the first and second data.

公开(公告)号：US10098563B2

公开(公告)日：2018-10-16

申请号：US11943765

申请日：2007-11-21

申请人： Tokunori Kimura ,  Masato Ikedo

发明人： Tokunori Kimura ,  Masato Ikedo

IPC分类号： A61B5/055 ,  A61B5/00 ,  G01R33/50 ,  G01R33/56 ,  G01R33/561 ,  G01R33/563

摘要： A magnetic resonance imaging apparatus includes an acquisition unit which acquires first data in which a tissue of interest has higher signal intensity than a background and second data in which the tissue of interest has lower signal intensity than the background, with regard to images of the same region of the same subject, and a generation unit which generates, on the basis of the first data and the second data, third data in which the contrast of the tissue of interest to the background is higher than those in the first and second data.

公开(公告)号：US07903849B2

公开(公告)日：2011-03-08

申请号：US11404014

申请日：2006-04-14

申请人： Tokunori Kimura

发明人： Tokunori Kimura

IPC分类号： G06K9/00 ,  A61B6/00

CPC分类号： G06T7/30 ,  G06T2207/10072 ,  G06T2207/30016

摘要： A diagnosis target image is input, and a template ROI which is set on an image to divide the area on the image into predetermined areas in anatomical terms, physiological terms, or other scientific terms is read out from a storage unit. A matching processing unit warps the template ROI in correspondence with each diagnosis target image on the basis of the feature information of the diagnosis target image extracted by a feature information extraction unit. This warping is executed until an index indicating the degree of matching between the template ROI and the diagnosis image exceeds a predetermined threshold. The warped template ROI is displayed on a display unit upon being superimposed on the diagnosis image.

摘要翻译： 输入诊断对象图像，并且从存储单元读出在图像上设置的将模拟图像上的区域以解剖术语，生理学术语或其他科学术语划分为预定区域的模板ROI。 匹配处理单元根据由特征信息提取单元提取的诊断对象图像的特征信息，对应于每个诊断对象图像，对模板ROI进行变形。 执行翘曲，直到指示模板ROI和诊断图像之间的匹配度的索引超过预定阈值。 翘曲模板ROI叠加在诊断图像上时显示在显示单元上。

公开(公告)号：US07821261B2

公开(公告)日：2010-10-26

申请号：US11520809

申请日：2006-09-14

申请人： Tokunori Kimura

发明人： Tokunori Kimura

IPC分类号： G01V3/00

CPC分类号： G01R33/56 ,  G01R33/4806 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814 ,  G01R33/5608 ,  G01R33/56308 ,  G01R33/56341

摘要： A data processing system configured to process acquired image data (e.g., as part of a diagnostic imaging apparatus) uses a signal-power estimating unit for estimating signal power by using reference data containing data different from processing-target data and a data processing unit for processing the processing-target data by using a WF (wiener filter) based on the signal power estimated by the signal-power estimating unit.

摘要翻译： 被配置为处理所获取的图像数据（例如，作为诊断成像装置的一部分）的数据处理系统使用信号功率估计单元，通过使用包含与处理对象数据不同的数据的参考数据来估计信号功率，以及数据处理单元， 通过使用基于由信号功率估计单元估计的信号功率的WF（维纳滤波器）来处理处理目标数据。

公开(公告)号：US20080069417A1

公开(公告)日：2008-03-20

申请号：US11798830

申请日：2007-05-17

申请人： Tokunori Kimura

发明人： Tokunori Kimura

IPC分类号： G06K9/00

CPC分类号： G01R33/56341

摘要： An image processing apparatus includes a storage unit, a specifying unit, a calculation unit and a display unit. The storage unit stores diffusion weighted image data. The specifying unit specifies a calculation target region on the diffusion weighted image data. The calculation unit calculates at least one of a diffusion coefficient and a fractional anisotropy serving an index of diffusion anisotropy with regard to the calculation target region based on the diffusion weighted image data. The display unit displays at least one of the diffusion coefficient and the fractional anisotropy calculated by the calculation unit.

摘要翻译： 图像处理装置包括存储单元，指定单元，计算单元和显示单元。 存储单元存储扩散加权图像数据。 指定单元指定扩散加权图像数据上的计算目标区域。 计算单元基于扩散加权图像数据计算用于计算目标区域的扩散各向异性指数的扩散系数和分数各向异性中的至少一个。 显示单元显示由计算单元计算的扩散系数和分数各向异性中的至少一个。