专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07898255B2 Inspection apparatus using magnetic resonance and nuclear magnetic resonance signal receiver coil 有权
标题翻译：检测装置采用磁共振和核磁共振信号接收线圈
公开(公告)号：US07898255B2
公开(公告)日：2011-03-01
申请号：US11813011
申请日：2006-02-06
申请人： Hisaaki Ochi , Yo Taniguchi , Hiroyuki Takeuchi
发明人： Hisaaki Ochi , Yo Taniguchi , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , A61B5/055 , G01R33/34084 , G01R33/365 , G01R33/3657 , G01R33/5611
摘要： An MRI apparatus capable of selecting an optional direction as a phase encoding direction and achieving a preferable S/N, when an imaging time shortening technique is applied. A receiver coil, used as a receiver coil of a vertical magnetic field MRI apparatus, is a combination of a first coil (solenoid coil) forming a current loop around the outer circumference of a test object, second coils forming even-numbered current loops, and third coils forming odd-numbered current loops, in the direction intersecting the plane of the current loop of the first coil. The second coil and the third coil are arranged in such a manner that, as for the current loops in the array direction thereof, a position where a sensitivity of one coil is minimized approximately coincides with a position where the sensitivity of the other coil is maximized, whereby electromagnetic coupling is suppressed.
摘要翻译：当应用成像时间缩短技术时，能够选择可选方向作为相位编码方向并获得优选的S / N的MRI装置。用作垂直磁场MRI设备的接收器线圈的接收器线圈是形成围绕测试对象的外圆周的电流回路的第一线圈（螺线管线圈），形成偶数电流回路的第二线圈，以及在与第一线圈的电流回路的平面相交的方向上形成奇数电流回路的第三线圈。第二线圈和第三线圈以这样的方式布置，即对于其排列方向上的电流环，一个线圈的灵敏度最小化的位置近似与其他线圈的灵敏度最大化的位置一致从而抑制电磁耦合。

2. 发明申请

US20090201020A1 MAGNETIC RESONANCE APPARATUS UTILIZING TIME-VARYING RATE OF MAGNETIC RESONANT FREQUENCY 失效
标题翻译：磁共振器利用磁共振频率的时变速率的磁共振装置
公开(公告)号：US20090201020A1
公开(公告)日：2009-08-13
申请号：US12423431
申请日：2009-04-14
申请人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01R33/48
CPC分类号： A61B5/411 , A61B5/0037 , A61B5/055 , A61B5/415 , A61B5/416 , A61B5/418 , A61B5/7257 , G01R33/389 , G01R33/485
摘要： The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.
摘要翻译：本发明提供一种磁共振成像系统，即使MRS测量期间磁共振频率发生变化，也能进行光谱测量。在MRS测量之前，预先测量水磁共振频率的时变速率。 MRS测量期间水磁共振频率的变化量根据测量的时变速率预测。以预测值为参考，在信号抑制脉冲序列中照射的RF磁场的传输频率，用于激励和反转的RF磁场的传输频率和在检测磁共振信号中的接收频率分别设置MRS测量的顺序。因此，能够进行高精度的频谱测量。

3. 发明授权

US07518362B2 Magnetic resonance apparatus utilizing time-varying rate of magnetic resonant frequency 有权
标题翻译：磁共振装置利用磁共振频率的时变速率
公开(公告)号：US07518362B2
公开(公告)日：2009-04-14
申请号：US10562643
申请日：2004-06-02
申请人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： A61B5/411 , A61B5/0037 , A61B5/055 , A61B5/415 , A61B5/416 , A61B5/418 , A61B5/7257 , G01R33/389 , G01R33/485
摘要： The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.
摘要翻译：本发明提供一种磁共振成像系统，即使MRS测量期间磁共振频率发生变化，也能进行光谱测量。在MRS测量之前，预先测量水磁共振频率的时变速率。 MRS测量期间水磁共振频率的变化量根据测量的时变速率预测。以预测值为参考，在信号抑制脉冲序列中照射的RF磁场的传输频率，用于激励和反转的RF磁场的传输频率和在检测磁共振信号中的接收频率分别设置MRS测量的顺序。因此，能够进行高精度的频谱测量。

4. 发明申请

US20060255802A1 Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：US20060255802A1
公开(公告)日：2006-11-16
申请号：US10562643
申请日：2004-06-02
申请人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： A61B5/411 , A61B5/0037 , A61B5/055 , A61B5/415 , A61B5/416 , A61B5/418 , A61B5/7257 , G01R33/389 , G01R33/485
摘要： The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.
摘要翻译：本发明提供一种磁共振成像系统，即使MRS测量期间磁共振频率发生变化，也能进行光谱测量。在MRS测量之前，预先测量水磁共振频率的时变速率。 MRS测量期间水磁共振频率的变化量根据测量的时变速率预测。以预测值为参考，在信号抑制脉冲序列中照射的RF磁场的传输频率，用于激励和反转的RF磁场的传输频率和在检测磁共振信号中的接收频率分别设置MRS测量的顺序。因此，能够进行高精度的频谱测量。

5. 发明申请

US20100033177A1 Inspection Apparatus using Magnetic Resonance and Nuclear Magnetic Resonance Signal Receiver Coil 有权
标题翻译：使用磁共振和核磁共振信号接收线圈的检测装置
公开(公告)号：US20100033177A1
公开(公告)日：2010-02-11
申请号：US11813011
申请日：2006-02-06
申请人： Hisaaki Ochi , Yo Taniguchi , Hiroyuki Takeuchi
发明人： Hisaaki Ochi , Yo Taniguchi , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , A61B5/055 , G01R33/34084 , G01R33/365 , G01R33/3657 , G01R33/5611
摘要： An MRI apparatus capable of selecting an optional direction as a phase encoding direction and achieving a preferable S/N, when an imaging time shortening technique is applied. A receiver coil, used as a receiver coil of a vertical magnetic field MRI apparatus, is a combination of a first coil (solenoid coil) forming a current loop around the outer circumference of a test object, second coils forming even-numbered current loops, and third coils forming odd-numbered current loops, in the direction intersecting the plane of the current loop of the first coil. The second coil and the third coil are arranged in such a manner that, as for the current loops in the array direction thereof, a position where a sensitivity of one coil is minimized approximately coincides with a position where the sensitivity of the other coil is maximized, whereby electromagnetic coupling is suppressed.
摘要翻译：当应用成像时间缩短技术时，能够选择可选方向作为相位编码方向并获得优选的S / N的MRI装置。用作垂直磁场MRI设备的接收器线圈的接收器线圈是形成围绕测试对象的外圆周的电流回路的第一线圈（螺线管线圈），形成偶数电流回路的第二线圈，以及在与第一线圈的电流回路的平面相交的方向上形成奇数电流回路的第三线圈。第二线圈和第三线圈以这样的方式布置，即对于其排列方向上的电流环，一个线圈的灵敏度最小化的位置近似与其他线圈的灵敏度最大化的位置一致从而抑制电磁耦合。

6. 发明授权

US07852076B2 Magnetic resonance apparatus utilizing time-varying rate of magnetic resonant frequency 失效
标题翻译：磁共振装置利用磁共振频率的时变速率
公开(公告)号：US07852076B2
公开(公告)日：2010-12-14
申请号：US12423431
申请日：2009-04-14
申请人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Satoshi Hirata , Hisaaki Ochi , Yo Taniguchi , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01V3/00
CPC分类号： A61B5/411 , A61B5/0037 , A61B5/055 , A61B5/415 , A61B5/416 , A61B5/418 , A61B5/7257 , G01R33/389 , G01R33/485
摘要： The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.
摘要翻译：本发明提供一种磁共振成像系统，即使MRS测量期间磁共振频率发生变化，也能进行光谱测量。在MRS测量之前，预先测量水磁共振频率的时变速率。 MRS测量期间水磁共振频率的变化量根据测量的时变速率预测。以预测值为参考，在信号抑制脉冲序列中照射的RF磁场的传输频率，用于激励和反转的RF磁场的传输频率和在检测磁共振信号中的接收频率分别设置MRS测量的顺序。因此，能够进行高精度的频谱测量。

7. 发明授权

US09684044B2 Magnetic resonance imaging apparatus and antenna device 有权
公开(公告)号：US09684044B2
公开(公告)日：2017-06-20
申请号：US14349424
申请日：2012-10-17
申请人： Hideta Habara , Yoshihisa Soutome , Hiroyuki Takeuchi , Hisaaki Ochi
发明人： Hideta Habara , Yoshihisa Soutome , Hiroyuki Takeuchi , Hisaaki Ochi
IPC分类号： G01R33/34 , G01R33/3415 , G01R33/345 , G01R33/36
CPC分类号： G01R33/34092 , G01R33/3415 , G01R33/3453 , G01R33/36 , G01R33/365
摘要： In order to provide a technique which can suppress coupling to homogenize the spatial distribution of an RF magnetic field and can improve penetration of the RF magnetic field into the subject, pad-like electric field conductors having a predetermined area are provided outside both ends of a rung conductor as a part of a configuration which forms a loop-like circuit and is driven as an antenna. An antenna device includes a sheet-like conductor, a rung conductor which is arranged at a predetermined distance from the sheet-like conductor, two electric field conductors which are arranged in both end portions of the rung conductor at a predetermined distance from the sheet-like conductor, and connection terminals which are transmission and reception terminals provided in the rung conductor and the sheet-like conductor. The rung conductor and the sheet-like conductor configure a loop circuit which resonates at a preset frequency.

8. 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。

9. 发明授权

US09274189B2 High-frequency coil unit and magnetic resonance imaging device 有权
标题翻译：高频线圈单元和磁共振成像装置
公开(公告)号：US09274189B2
公开(公告)日：2016-03-01
申请号：US13512090
申请日：2010-11-29
申请人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
发明人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
IPC分类号： G01R33/34 , G01R33/48 , G01R33/345 , G01R33/36
CPC分类号： G01R33/34046 , G01R33/34053 , G01R33/34076 , G01R33/3453 , G01R33/3657 , G01R33/3678
摘要： There is provided a technique for securing a large examination space in a tunnel type MRI device without inviting increase of manufacturing cost and without significantly reducing irradiation efficiency or uniformity of the irradiation intensity distribution in an imaging region. Between rungs of a partially cylindrical RF coil, which coil corresponds to a cylindrical RF coil of which part is removed, there are disposed half-loops generating magnetic fields, which are synthesized with magnetic fields generated by loops constituted by adjacent rungs of the partially cylindrical RF coil and rings connecting the rungs to generate a circularly polarized or elliptically polarized magnetic field. Further, high-frequency signals of the same reference frequency having a desired amplitude ratio and phase difference are supplied to the partially cylindrical RF coils and half-loops.
摘要翻译：提供了一种用于在隧道式MRI装置中确保大的检查空间的技术，而不会增加制造成本，并且不显着降低成像区域中的照射强度分布的照射效率或均匀性。在部分圆柱形RF线圈的两个梯级之间，该线圈对应于部分被去除的圆柱形RF线圈，设置有产生磁场的半环，该磁场由具有由部分圆柱形的相邻梯级构成的环产生的磁场合成 RF线圈和环连接梯级以产生圆偏振或椭圆偏振磁场。此外，具有期望幅度比和相位差的相同参考频率的高频信号被提供给部分圆柱形RF线圈和半环。

10. 发明授权

US09182463B2 Magnetic resonance examination apparatus and antenna device 有权
标题翻译：磁共振检查仪和天线装置
公开(公告)号：US09182463B2
公开(公告)日：2015-11-10
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： G01R33/34
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式