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1. 发明授权

US5808467A RF probe and inspection system using NMR using the same 失效
标题翻译：射频探头和使用核磁共振的检查系统
公开(公告)号：US5808467A
公开(公告)日：1998-09-15
申请号：US653315
申请日：1996-05-24
申请人： Hisaaki Ochi , Yo Taniguchi , Kenichi Okajima , Yoshitaka Bito , Etsuji Yamamoto
发明人： Hisaaki Ochi , Yo Taniguchi , Kenichi Okajima , Yoshitaka Bito , Etsuji Yamamoto
IPC分类号： G01R33/3415 , G01V3/00
CPC分类号： G01R33/3415
摘要： In the inspection system using nuclear magnetic resonance comprising magnetic field generators such as a static magnetic field, a gradient magnetic field, and an RF magnetic field, an RF probe for detecting an NMR signal from a subject, and a calculator for operating a detected signal by the RF probe, a RF probe for detection comprises a plurality of coils arranged in the predetermined direction and includes a plurality of switching elements and the inspection system selects two or more coils from the plurality of coils for each measurement of NMR signals, turns the switching elements connected to the selected coils ON, turns the switching elements connected to coils other than the selected coils OFF, changes a combination of two or more coils for each measurement of NMR signals, and changes the sensitivity distribution of the RF probe in the predetermined direction according to the Wavelet basis function for each measurement of NMR signals.
摘要翻译：在使用包括诸如静磁场，梯度磁场和RF磁场的磁场发生器的核磁共振的检查系统中，用于检测来自被检体的NMR信号的RF探针和用于操作检测信号的计算器通过RF探头，用于检测的RF探针包括沿预定方向布置的多个线圈，并且包括多个开关元件，并且检查系统从每个测量NMR信号中选择来自多个线圈的两个或更多个线圈，连接到所选择的线圈的开关元件接通，将与所选线圈以外的线圈相连的开关元件断开，对每个NMR信号的测量改变两个或更多个线圈的组合，并将RF探针的灵敏度分布改变为预定的根据每个NMR信号测量的小波基函数的方向。

2. 发明申请

US20080009703A1 Magnetic resonance imaging system 有权
标题翻译：磁共振成像系统
公开(公告)号：US20080009703A1
公开(公告)日：2008-01-10
申请号：US11797878
申请日：2007-05-08
申请人： Yoshitaka Bito , Hisaaki Ochi , Yo Taniguchi , Satoshi Hirata , Toru Shirai
发明人： Yoshitaka Bito , Hisaaki Ochi , Yo Taniguchi , Satoshi Hirata , Toru Shirai
IPC分类号： A61B5/05
CPC分类号： G01R33/485 , G01R33/5608
摘要： A magnetic resonance imaging system capable of conducting spectroscopic imaging with an improved SNR without degrading the spatial resolution includes edge-preserving filter processing means for spectroscopic imaging. The edge-preserving filter processing means executes processing including the steps of calculating spectral similarity in spatial neighborhoods (spatially neighboring voxels) at each voxel in spectroscopic imaging data, calculating a spectral weight according to the spectral similarity, and conducting weighted smoothing for compounding spectra of spatial neighborhoods (spatially neighboring voxels) according to the spectral weight.
摘要翻译：能够在不降低空间分辨率的情况下以改善的SNR进行光谱成像的磁共振成像系统包括用于分光成像的边缘保留滤波处理装置。边缘保留滤波处理装置执行处理，其包括以下步骤：计算分光成像数据中的每个体素的空间邻域（空间相邻体素）中的频谱相似度，根据频谱相似度计算频谱权重，以及进行加权平滑化，根据光谱权重的空间邻域（空间相邻体素）。

3. 发明授权

US08030924B2 Magnetic resonance imaging system 有权
标题翻译：磁共振成像系统
公开(公告)号：US08030924B2
公开(公告)日：2011-10-04
申请号：US11797878
申请日：2007-05-08
申请人： Yoshitaka Bito , Hisaaki Ochi , Yo Taniguchi , Satoshi Hirata , Toru Shirai
发明人： Yoshitaka Bito , Hisaaki Ochi , Yo Taniguchi , Satoshi Hirata , Toru Shirai
IPC分类号： G01V3/00
CPC分类号： G01R33/485 , G01R33/5608
摘要： A magnetic resonance imaging system capable of conducting spectroscopic imaging with an improved SNR without degrading the spatial resolution includes edge-preserving filter processing means for spectroscopic imaging. The edge-preserving filter processing means executes processing including the steps of calculating spectral similarity in spatial neighborhoods (spatially neighboring voxels) at each voxel in spectroscopic imaging data, calculating a spectral weight according to the spectral similarity, and conducting weighted smoothing for compounding spectra of spatial neighborhoods (spatially neighboring voxels) according to the spectral weight.
摘要翻译：能够在不降低空间分辨率的情况下以改善的SNR进行光谱成像的磁共振成像系统包括用于分光成像的边缘保留滤波处理装置。边缘保留滤波处理装置执行处理，其包括以下步骤：计算分光成像数据中的每个体素的空间邻域（空间相邻体素）中的频谱相似度，根据频谱相似度计算频谱权重，以及进行加权平滑化，根据光谱权重的空间邻域（空间相邻体素）。

4. 发明申请

US20080221430A1 APPARATUS FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：US20080221430A1
公开(公告)日：2008-09-11
申请号：US12030893
申请日：2008-02-14
申请人： Hisaaki OCHI , Yo Taniguchi , Yoshihisa Soutome , Yoshitaka Bito
发明人： Hisaaki OCHI , Yo Taniguchi , Yoshihisa Soutome , Yoshitaka Bito
IPC分类号： A61B5/055
CPC分类号： G01R33/5601 , G01R33/54 , G01R33/5616 , G01R33/5617
摘要： A magnetic resonance imaging (MRI) apparatus for high-speed and high-accuracy detection of cell positions labeled with magnetic nanoparticles. A transmitter coil is controlled to generate amplitude-modulated burst RF pulses as excitation RF pulses whose amplitude is modulated by a function that repeatedly inverts the polarity of multiple high-frequency magnetic field sub-pulses separated time-wise and changes the amplitude at each polarity inversion, moreover the time interval of the amplitude-modulated burst RF pulse is set to effectively 1/(2×a first frequency), and the transmitter coil controlled so the carrier frequency of the amplitude-modulated burst RF pulse is set to a second frequency shifted substantially from the first frequency of the magnetic resonance frequency of the proton at the magnetic field strength in the MRI apparatus. The first frequency is here determined based on magnetic nanoparticle information loaded from the magnetic nanoparticle information storage unit and the magnetic resonance frequency of the proton in the static magnetic field. The MRI apparatus can in this way detect the position of cells labeled with magnetic nanoparticles, with high-speed and high accuracy.
摘要翻译：一种磁共振成像（MRI）装置，用于高速和高精度检测用磁性纳米颗粒标记的细胞位置。发射器线圈被控制以产生幅度调制的突发RF脉冲作为激励RF脉冲，其幅度通过重复地反转时间间隔分离的多个高频磁场子脉冲的极性并改变每个极性的振幅的函数来调制此外，调幅脉冲串RF脉冲的时间间隔被有效地设置为1 /（2×a第一频率），并且被控制的发射机线圈被调制的调幅脉冲串RF脉冲的载波频率设置为第二频移基本上从MRI装置中的磁场强度的质子的磁共振频率的第一频率开始。这里基于从磁性纳米颗粒信息存储单元加载的磁性纳米颗粒信息和静态磁场中质子的磁共振频率来确定第一频率。 MRI装置可以以这种方式以高速和高精度检测用磁性纳米颗粒标记的细胞的位置。

5. 发明申请

US20130069652A1 RF COIL AND MAGNETIC RESONANCE IMAGING DEVICE 审中-公开
标题翻译：射频线圈和磁共振成像装置
公开(公告)号：US20130069652A1
公开(公告)日：2013-03-21
申请号：US13522928
申请日：2011-01-25
申请人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
发明人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
IPC分类号： G01R33/34
CPC分类号： G01R33/3664 , G01R33/34053 , G01R33/34076 , G01R33/3415
摘要： There is a provided a technology of receiving a magnetic resonance signal highly sensitively and with a uniform sensitivity distribution in an RF coil of an MRI device which is an RF coil including a switch circuit of switching a circuit configuration. The RF coil of the MRI device of the present invention includes a switch circuit of switching a circuit configuration. Also, the switch circuit switches the circuit configuration by being driven by a control signal received by wireless. For that purpose, the switch circuit includes an antenna of receiving the control signal and a conversion circuit of converting an alternating current voltage received into a direct current voltage.
摘要翻译：提供了一种技术，其高灵敏度地接收磁共振信号，并且在作为包括切换电路配置的开关电路的RF线圈的MRI装置的RF线圈中具有均匀的灵敏度分布。本发明的MRI装置的RF线圈包括切换电路结构的开关电路。此外，开关电路通过由无线接收的控制信号驱动来切换电路配置。为此，开关电路包括接收控制信号的天线和将所接收的交流电压转换成直流电压的转换电路。

6. 发明申请

US20120299594A1 ANTENNA DEVICE 有权
标题翻译：天线设备
公开(公告)号：US20120299594A1
公开(公告)日：2012-11-29
申请号：US13577885
申请日：2011-01-21
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01R33/28
CPC分类号： G01R33/34046
摘要： There is provided a technique for securing a comfortable examination space in a tunnel type MRI apparatus without increasing the manufacturing cost of the MRI apparatus and sacrificing performance thereof. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. In order to obtain uniform sensitivity at the center of the RF coil, the strip-shaped conductive element is constituted with N of connected meander lines, and length of the strip-shaped conductive element is adjusted so that, in the strip-shaped conductive element resonating at resonance frequency of the antenna, nodes are formed in a number of (M+1)×N−1, wherein M is 0 or a natural number of 1 or larger.
摘要翻译：提供了一种用于在隧道式MRI装置中确保舒适检查空间而不增加MRI装置的制造成本并牺牲其性能的技术。在具有中空状的外部导电元件的RF线圈和沿着外部导电元件沿轴向设置的条状导电元件，构成条形导电元件的曲折线设置在与外部导电元件不均匀的距离处以确保内部空间。为了在RF线圈的中心获得均匀的灵敏度，带状导电元件由N个连接的曲折线构成，并且条形导电元件的长度被调节，使得在带状导电元件在天线的谐振频率下共振，以（M + 1）×N-1的数量形成节点，其中M为0或自然数为1或更大。

7. 发明授权

US07639012B2 Coil apparatus and magnetic resonance imaging apparatus using the same 有权
标题翻译：线圈装置和使用其的磁共振成像装置
公开(公告)号：US07639012B2
公开(公告)日：2009-12-29
申请号：US12071795
申请日：2008-02-26
申请人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
发明人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
IPC分类号： G01V3/00
CPC分类号： G01R33/34076 , G01R33/34007 , G01R33/3635
摘要： There is provided an RF coil capable of resonating or tuning two frequencies, having uniform spatial sensitivity and having a small spatially occupied volume, especially an RF coil suitable for a high magnetic field MRI apparatus. A coil apparatus is made up of a plurality of linear conductors 200, 201 arranged around a central axis and two ring conductors 202, 203 connected to the respective ends of the plurality of linear conductors 200, 201 and capacitors are inserted in the linear conductors 200, 201 and ring conductors 202, 203. The plurality of linear conductors are made up of conductors 200 located near the central axis and conductors 201 located far from the central axis and the ring conductors 202, 203 have star-like polygonal shape so that the linear conductors are arranged alternately. This structure can realize two tuning modes; a resonance mode similar to a birdcage type resonance mode and a resonance mode which becomes zero (node) in the vicinity of the linear conductor group 200 located near the central axis.
摘要翻译：提供了能够谐振或调谐两个频率的RF线圈，其具有均匀的空间灵敏度并且具有小的空间占用体积，特别是适用于高磁场MRI装置的RF线圈。线圈装置由围绕中心轴线布置的多个线性导体200,201和连接到多个线性导体200,201的各个端部的两个环形导体202,203组成，并且电容器插入线性导体200 ，201和环形导体202,203。多个线性导体由位于中心轴附近的导体200和位于远离中心轴线的导体201组成，并且环形导体202,203具有星形多边形形状，使得线性导体交替排列。该结构可实现两种调谐方式; 类似于鸟笼型共振模式的谐振模式和在位于中心轴附近的线性导体组200附近变为零（节点）的谐振模式。

8. 发明授权

US07589530B2 Coil device and nuclear magnetic resonance imaging apparatus using the same 有权
标题翻译：线圈装置和使用其的核磁共振成像装置
公开(公告)号：US07589530B2
公开(公告)日：2009-09-15
申请号：US11936885
申请日：2007-11-08
申请人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
发明人： Hideta Habara , Yoshitaka Bito , Yoshihisa Soutome , Hisaaki Ochi
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/3635
摘要： An RF coil which is resonant and tuned with two different frequencies, has uniform space sensitivity and occupies less space is provided. The coil is, particularly suited to the high magnetic field MRI apparatus. The coil device is equipped with the multiple number of first coils 200 having the first conducting sections 201 and 202 and the second conducting sections 203 and 204, and the second coils 205 and 206 electrically connected with the end of the multiple number of first coils. In the first conducting sections, two conducting parts 201 and 202 are electrically connected via the first condenser 207, while in the second conducting sections, two conducting parts 203 and 204 are electrically connected via the second condenser 208. And the feeding circuit and/or receiving circuit are connected in parallel with the first condenser at one or two positions. By adjusting the capacity of the first and the second condenser, the RF coil having a uniform sensitivity range at two different frequencies can be configured.
摘要翻译：谐振和调谐两种不同频率的RF线圈具有均匀的空间灵敏度，占用较少的空间。该线圈特别适用于高磁场MRI装置。线圈装置配备有多个具有第一导电部分201和202以及第二导电部分203和204的第一线圈200，并且第二线圈205和206与多个第一线圈的端部电连接。在第一导电部分中，两个导电部分201和202经由第一电容器207电连接，而在第二导电部分中，两个导电部分203和204经由第二电容器208电连接。并且馈电电路和/或接收电路在一个或两个位置与第一电容器并联连接。通过调整第一和第二电容器的容量，可以配置具有两个不同频率的均匀灵敏度范围的RF线圈。

9. 发明授权

US09097778B2 Magnetic resonance device with diffusion gradient phase variation positionally corrected 有权
标题翻译：具有扩散梯度相位变化的磁共振装置位置校正
公开(公告)号：US09097778B2
公开(公告)日：2015-08-04
申请号：US13140484
申请日：2010-02-03
申请人： Yoshitaka Bito , Satoshi Hirata , Hisaaki Ochi , Koji Hirata , Toru Shirai , Yosuke Otake
发明人： Yoshitaka Bito , Satoshi Hirata , Hisaaki Ochi , Koji Hirata , Toru Shirai , Yosuke Otake
IPC分类号： G01R33/485 , G01R33/563
CPC分类号： G01R33/485 , G01R33/56341
摘要： In the diffusion spectroscopic imaging, in which intensity of molecular diffusion is imaged with separating chemical substances, with suppressing artifacts resulting from object motion of an object, spatial resolution, spectral band and SNR are maintained, and measurement accuracy is enhanced. A measurement for acquiring diffusion SI data is repeated a plurality of times with changing acquisition timing, phase variation of each measurement result is corrected, and a diffusion SI image is reconstructed from the corrected measurement results. In addition, the phase variation is calculated for every point in the space from the diffusion SI data acquired by each measurement or navigation data obtained by each measurement. The phase correction is independently performed for every point in the space.
摘要翻译：在通过分离化学物质成像分子扩散强度的扩散光谱成像中，通过抑制由物体的物体运动产生的伪影，保持了空间分辨率，光谱带和SNR，并且提高了测量精度。通过改变获取定时多次重复获取扩散SI数据的测量，校正每个测量结果的相位变化，并从校正的测量结果重建扩散SI图像。此外，根据通过各测量获得的扩散SI数据或通过每次测量获得的导航数据，计算空间中每个点的相位变化。对于空间中的每一个点都独立执行相位校正。

10. 发明授权

US08203342B2 Nuclear magnetic resonance imaging system and coil unit 有权
标题翻译：核磁共振成像系统和线圈单元
公开(公告)号：US08203342B2
公开(公告)日：2012-06-19
申请号：US12519832
申请日：2007-12-13
申请人： Hisaaki Ochi , Yoshihisa Soutome , Yoshitaka Bito , Takeshi Yatsuo , Hiroyuki Takeuchi
发明人： Hisaaki Ochi , Yoshihisa Soutome , Yoshitaka Bito , Takeshi Yatsuo , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： G01R33/385 , G01R33/34076 , G01R33/4215 , G01R33/422 , G01R33/5659
摘要： A coil unit comprises a gradient coil which is disposed along a static magnetic field generating source, and a radio frequency coil which is disposed along the gradient coil in a test region at a position closer to the center of the test region compared with the gradient coil, and a conductor part which is disposed between the gradient coil and the radio frequency coil, and covers periphery of the radio frequency coil. The radio frequency coil comprises a first loop coil and a second loop coil locating in planes substantially perpendicular to direction of the static magnetic field, a plurality of linear conductors connecting the first loop coil and the second loop coil and substantially parallel to the direction of the static magnetic field, and a plurality of first capacitors disposed in the first loop coil and the second loop coil.
摘要翻译：线圈单元包括沿着静磁场发生源设置的梯度线圈，以及与梯度线圈相比更靠近测试区域的中心的位置处的测试区域中的沿梯度线圈布置的射频线圈以及布置在所述倾斜线圈和所述射频线圈之间并且覆盖所述射频线圈的周围的导体部。射频线圈包括第一环形线圈和位于基本上垂直于静态磁场方向的平面中的第二环形线圈;多个线性导体，其连接第一环形线圈和第二环形线圈，并且基本上平行于静磁场和设置在第一环形线圈和第二环形线圈中的多个第一电容器。

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