会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Parallel imaging in non-cartesian magnetic resonance imaging (MRI) and MRI apparatus realizing the same
    • 并行成像在非笛卡尔磁共振成像(MRI)和MRI设备中实现相同
    • US08207734B2
    • 2012-06-26
    • US12529396
    • 2008-03-03
    • Tetsuhiko TakahashiMasahiro TakizawaYasuhiro Kamada
    • Tetsuhiko TakahashiMasahiro TakizawaYasuhiro Kamada
    • G01V3/00
    • G01R33/5611G01R33/4824G01R33/5615
    • An MRI apparatus capable of performing a high-speed operation for removing aliasing from the data measured by non-Cartesian imaging in a real space with a small amount of operation is provided. Non-Cartesian data sampling is performed by thinning the number of data by using multiple receiver coils having different sensitivity distribution from each other. Image reconstruction means creates orthogonal data by gridding non-orthogonal data obtained by each receiver coil on a grid having an equal spatial resolution to and a narrower field of view than a target image, subjects it to Fourier transform and creates the first image data containing aliasing components. The second image data is created by using the first image data created for each receiver coil and a sensitivity distribution of each receiver coil.
    • 提供了一种MRI装置,其能够执行用于以少量操作在实际空间中通过非笛卡尔成像测量的数据去除混叠的高速操作。 通过使用具有彼此不同的灵敏度分布的多个接收器线圈来稀疏数据来执行非笛卡尔数据采样。 图像重建装置通过网格化由每个接收器线圈获得的非正交数据在具有与目标图像相等的空间分辨率和较窄视场的网格上产生正交数据,使其进行傅里叶变换,并创建包含混叠的第一图像数据 组件。 通过使用为每个接收器线圈创建的第一图像数据和每个接收器线圈的灵敏度分布来创建第二图像数据。
    • 15. 发明申请
    • MAGNETIC RESONANCE IMAGING APPARATUS, AND BREATH-HOLDING IMAGING METHOD
    • 磁共振成像装置及其持续成像方法
    • US20110181286A1
    • 2011-07-28
    • US13122309
    • 2009-10-02
    • Yasuhiro Kamada
    • Yasuhiro Kamada
    • G01R33/48
    • A61B5/055G01R33/5602G01R33/5607G01R33/5613G01R33/56509
    • In order to make it possible to set the optimal breath-holding imaging conditions according to the subject without extension of an imaging time or the sacrifice of image quality, one scan is divided into one or more breath-holding measurements and free-breathing measurements on the basis of the imaging conditions of a breath-holding measurement, which are input and set according to the subject, and a region of the k space measured in the breath-holding measurement is controlled. Preferably, in the breath-holding measurement, low-frequency data of the k space is measured. Moreover, preferably, imaging conditions of the breath-holding measurement include the number of times of breath holding or a breath-holding time, and the operator can set any of these values.
    • 为了使得可以根据被摄体设置最佳的呼吸保持成像条件而不延长成像时间或牺牲图像质量,一次扫描被分成一次或多次呼吸测量和自由呼吸测量 控制根据被摄体输入和设定的呼吸保持测量的成像条件的基础以及在保持测量中测量的k空间的区域。 优选地,在呼吸保持测量中,测量k空间的低频数据。 此外,优选地,呼吸保持测量的成像条件包括呼吸次数或呼吸保持时间,并且操作者可以设置这些值中的任何一个。
    • 16. 发明申请
    • MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD
    • 磁共振成像装置和磁共振成像方法
    • US20100039110A1
    • 2010-02-18
    • US12529396
    • 2008-03-03
    • Tetsuhiko TakahashiMasahiro TakizawaYasuhiro Kamada
    • Tetsuhiko TakahashiMasahiro TakizawaYasuhiro Kamada
    • G01R33/48G06K9/00
    • G01R33/5611G01R33/4824G01R33/5615
    • An MRI apparatus capable of performing a high-speed operation for removing aliasing from the data measured by non-Cartesian imaging in a real space with a small amount of operation is provided. Non-Cartesian data sampling is performed by thinning the number of data by using multiple receiver coils having different sensitivity distribution from each other. Image reconstruction means creates orthogonal data by gridding non-orthogonal data obtained by each receiver coil on a grid having an equal spatial resolution to and a narrower field of view than a target image, subjects it to Fourier transform and creates the first image data containing aliasing components. The second image data is created by using the first image data created for each receiver coil and a sensitivity distribution of each receiver coil.
    • 提供了一种MRI装置,其能够执行用于以少量操作在实际空间中通过非笛卡尔成像测量的数据去除混叠的高速操作。 通过使用具有彼此不同的灵敏度分布的多个接收器线圈来稀疏数据来执行非笛卡尔数据采样。 图像重建装置通过网格化由每个接收器线圈获得的非正交数据在具有与目标图像相等的空间分辨率和较窄视场的网格上产生正交数据,使其进行傅里叶变换,并创建包含混叠的第一图像数据 组件。 通过使用为每个接收器线圈创建的第一图像数据和每个接收器线圈的灵敏度分布来创建第二图像数据。