MAGNETIC RESONANCE IMAGING SYSTEM AND MAGNETIC RESONANCE IMAGING METHOD
    2.
    发明申请
    MAGNETIC RESONANCE IMAGING SYSTEM AND MAGNETIC RESONANCE IMAGING METHOD 有权
    磁共振成像系统和磁共振成像方法

    公开(公告)号:US20140132261A1

    公开(公告)日:2014-05-15

    申请号:US14075753

    申请日:2013-11-08

    CPC classification number: G01R33/4835 A61B5/055 G01R33/5611

    Abstract: A magnetic resonance imaging (MRI) method includes defining a plurality of sub-volumes so that each of the sub-volumes includes a plurality of sequential slices of a plurality of slices that make up a volume of a subject, wherein the sub-volumes are divided into a plurality of groups so that any neighboring sub-volumes belong to different groups; applying radio-frequency (RF) pulses including a plurality of frequency components and a selection gradient to the subject to simultaneously excite a plurality of sub-volumes in each of the groups; performing three-dimensional (3D) encoding on each of the excited sub-volumes so that only some slices of the plurality of slices in each of the excited sub-volumes are encoded in a slice direction; acquiring magnetic resonance signals from the encoded sub-volumes; and reconstructing the acquired magnetic resonance signals into image data corresponding to each of the plurality of slices in each of the encoded sub-volumes.

    Abstract translation: 磁共振成像(MRI)方法包括定义多个子体积,使得每个子体积包括构成受试者体积的多个切片的多个顺序切片,其中子体积为 分为多个组,使得任何相邻的子卷属于不同的组; 将包括多个频率分量和选择梯度的射频(RF)脉冲施加到对象以同时激发每个组中的多个子体积; 在每个激发的子体积上执行三维(3D)编码,使得每个激励子体积中的多个切片中的一些切片在切片方向上被编码; 从编码子体积获取磁共振信号; 以及将所获取的磁共振信号重构成与每个所述编码子卷中的所述多个片中的每一个相对应的图像数据。

    X-ray imaging apparatus and control method for the same
    3.
    发明授权
    X-ray imaging apparatus and control method for the same 有权
    X射线成像装置及其控制方法相同

    公开(公告)号:US09504439B2

    公开(公告)日:2016-11-29

    申请号:US14507951

    申请日:2014-10-07

    Abstract: An X-ray imaging apparatus includes an X-ray source configured to radiate X-rays to a region of a subject, an X-ray detector configured to acquire a plurality of frame images related to the region of the subject by detecting the radiated X-rays, a filter configured to filter the X-rays radiated from the X-ray source, an image processor configured to set a region of interest within the region of the subject based on the plurality of frame images, and a controller configured to control the filter so that X-rays of a lower dose than a dose of X-rays made incident on the region of interest are made incident on a region of non-interest within the region of the subject, and control the X-ray detector so that a gain of the X-ray detector in the region of non-interest is greater than that in the region of interest.

    Abstract translation: 一种X射线摄像装置,具备将X射线照射到被检体的区域的X射线源,X射线检测器,被配置为通过检测被照射的X射线来获取与被检者的区域有关的多个帧图像 射线,被配置为过滤从X射线源辐射的X射线的过滤器,被配置为基于多个帧图像在对象的区域内设置感兴趣区域的图像处理器,以及被配置为控制 过滤器使得入射在感兴趣区域上的X射线剂量较低的X射线入射到受检者区域内的非感兴趣区域,并且将X射线检测器控制 在非兴趣区域的X射线检测器的增益大于感兴趣区域的增益。

    MAGNETIC RESONANCE IMAGING SYSTEM AND MAGNETIC RESONANCE IMAGING METHOD
    4.
    发明申请
    MAGNETIC RESONANCE IMAGING SYSTEM AND MAGNETIC RESONANCE IMAGING METHOD 有权
    磁共振成像系统和磁共振成像方法

    公开(公告)号:US20140132264A1

    公开(公告)日:2014-05-15

    申请号:US14079199

    申请日:2013-11-13

    CPC classification number: G01R33/4835 G01R33/4822 G01R33/4826 G01R33/5611

    Abstract: A magnetic resonance imaging (MRI) method includes: applying radio-frequency (RF) pulses comprising a plurality of frequency components and a selection gradient to a subject to simultaneously excite a plurality of sub-volumes in each of a plurality of groups, wherein a plurality of sub-volumes making up a volume of the subject are divided into the plurality of groups so that any neighboring sub-volumes belong to different groups; performing three-dimensional (3D) encoding on each of the excited sub-volumes using a plurality of encoding methods; acquiring magnetic resonance signals from the encoded sub-volumes; and reconstructing the acquired magnetic resonance signals into image data corresponding to each of the encoded sub-volumes.

    Abstract translation: 磁共振成像(MRI)方法包括:对受试者施加包括多个频率分量和选择梯度的射频(RF)脉冲,以同时激励多个组中的每一个中的多个子体积,其中a 构成被摄体的体积的多个子体积被分成多个组,使得任何相邻的子体积属于不同的组; 使用多种编码方法对每个激发的子体积执行三维(3D)编码; 从编码子体积获取磁共振信号; 以及将所获取的磁共振信号重建为与每个编码子体积对应的图像数据。

    Magnetic resonance imaging system and magnetic resonance imaging method

    公开(公告)号:US09791528B2

    公开(公告)日:2017-10-17

    申请号:US14075753

    申请日:2013-11-08

    CPC classification number: G01R33/4835 A61B5/055 G01R33/5611

    Abstract: A magnetic resonance imaging (MRI) method includes defining a plurality of sub-volumes so that each of the sub-volumes includes a plurality of sequential slices of a plurality of slices that make up a volume of a subject, wherein the sub-volumes are divided into a plurality of groups so that any neighboring sub-volumes belong to different groups; applying radio-frequency (RF) pulses including a plurality of frequency components and a selection gradient to the subject to simultaneously excite a plurality of sub-volumes in each of the groups; performing three-dimensional (3D) encoding on each of the excited sub-volumes so that only some slices of the plurality of slices in each of the excited sub-volumes are encoded in a slice direction; acquiring magnetic resonance signals from the encoded sub-volumes; and reconstructing the acquired magnetic resonance signals into image data corresponding to each of the plurality of slices in each of the encoded sub-volumes.

    X-ray image processing method and X-ray image processing apparatus

    公开(公告)号:US11373308B2

    公开(公告)日:2022-06-28

    申请号:US16773317

    申请日:2020-01-27

    Abstract: An X-ray image processing method, including obtaining a first X-ray image of an object including a plurality of materials including a first material and a second material different from the first material; obtaining three-dimensional (3D) information about the object using a 3D camera; obtaining first information about a thickness of the object based on the 3D information; and obtaining second information related to a stereoscopic structure of the first material by decomposing the first material from the object using the first information and the first X-ray image.

Patent Agency Ranking