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31. 发明授权

US08198894B2 High frequency magnetic field coil and magnetic resonance imaging apparatus with the same 有权
标题翻译：高频磁场线圈和磁共振成像装置相同
公开(公告)号：US08198894B2
公开(公告)日：2012-06-12
申请号：US12417852
申请日：2009-04-03
申请人： Yukio Kaneko , Hideta Habara , Yoshihisa Soutome , Yosuke Otake , Yoshitaka Bito
发明人： Yukio Kaneko , Hideta Habara , Yoshihisa Soutome , Yosuke Otake , Yoshitaka Bito
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/34053 , G01R33/34076 , G01R33/341 , G01R33/3635
摘要： An RF coil for MR Imaging that can change a resonance frequency easily and instantaneously in response to a nuclide to be imaged without exchange and adjustment and that also causes only small lowering of sensitivity. The RF coil has a sub coil for changing a resonance frequency of the transmitting/receiving RF coil for transmitting and receiving an MR signal between itself and a nuclide that is an object to be imaged. The sub coil is equipped with a switch, and at the time of switching-on, shifts the resonance frequency of the RF coil by changing an inductance value of the RF coil in a noncontact manner using inductance coupling.
摘要翻译：用于MR成像的RF线圈，其能够响应于待成像的核素而容易且瞬时地改变谐振频率而不进行交换和调整，并且也仅导致灵敏度的小的降低。 RF线圈具有用于改变发射/接收RF线圈的谐振频率的子线圈，用于在其与作为要成像的对象的核素之间发送和接收MR信号。子线圈配备有开关，并且在接通时通过使用电感耦合以非接触方式改变RF线圈的电感值来移动RF线圈的谐振频率。

32. 发明申请

US20110267062A1 BALUN AND MAGNETIC RESONANCE IMAGING APPARATUS 有权
标题翻译：巴伦和磁共振成像装置
公开(公告)号：US20110267062A1
公开(公告)日：2011-11-03
申请号：US13142439
申请日：2010-01-28
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： G01R33/32 , H03H7/42
CPC分类号： G01R33/3685
摘要： The present invention provides a technique for maintaining a function for effectively blocking common mode noise with a simple configuration, even in the case where unbalance occurs in characteristic impedance of a coaxial cable in an MRI apparatus, and improving the performance of an RF coil. In a circuit where a balun is established by parallel connection with the coaxial cable, multiple serial resonance circuits having different resonance frequencies are connected in parallel. A value of each constitutional element of each of the serial resonance circuits is adjusted in such a manner that the frequency for blocking the common mode noise of the entire balun falls into a range between the resonance frequencies of these serial resonance circuits.
摘要翻译：本发明提供一种技术，即使在MRI装置中的同轴电缆的特性阻抗发生不平衡的情况下，也能够提高RF线圈的性能的情况下，以简单的结构保持用于有效阻断共模噪声的功能。在通过与同轴电缆并联建立平衡 - 不平衡转换器的电路中，并联连接具有不同谐振频率的多个串联谐振电路。每个串联谐振电路的每个结构元件的值被调整为使得阻挡整个平衡 - 不平衡转换器的共模噪声的频率落入这些串联谐振电路的谐振频率之间的范围内。

33. 发明申请

US20080150533A1 Coil Device and Nuclear Magnetic Resonance Imaging Apparatus Using the Same 有权
标题翻译：线圈装置和使用它的核磁共振成像装置
公开(公告)号：US20080150533A1
公开(公告)日：2008-06-26
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： G01R33/34
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。并且馈送电路和/或接收电路在一个或两个位置处与第一冷凝器并联连接。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。

34. 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。

35. 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。

36. 发明授权

US08947084B2 Antenna device and magnetic resonance imaging device 有权
标题翻译：天线装置和磁共振成像装置
公开(公告)号：US08947084B2
公开(公告)日：2015-02-03
申请号：US13125829
申请日：2009-07-22
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
IPC分类号： G01R33/44 , H01Q9/04 , G01R33/34 , G01R33/341 , A61B5/055
CPC分类号： G01R33/34046 , A61B5/055 , G01R33/34007 , G01R33/34053 , G01R33/34061 , G01R33/341
摘要： Manufacture cost and maintenance cost of RF coils of MRI devices are reduced without any limitation concerning size of the coils. By constituting an antenna device for magnetic resonance imaging devices with a cylindrical outer conductor, a looped ribbon-shaped conductor disposed inside the cylindrical outer conductor along the cylindrical surface, and a feed point for transmission and/or reception between the cylindrical conductor and the ribbon-shaped conductor, and disposing the ribbon-shaped conductor so that length thereof can be readily adjusted, there is provided an antenna device for magnetic resonance imaging devices that generates a magnetic field component perpendicular to the central axis of the cylinder at a desired resonance frequency and shows sensitivity without using capacitors and without being imposed any limitation concerning size in the diametral direction of the cylinder.
摘要翻译：降低了MRI装置的RF线圈的制造成本和维护成本，而对于线圈的尺寸没有任何限制。通过构成用于具有圆柱形外部导体的磁共振成像装置的天线装置，沿着圆柱形表面设置在圆柱形外部导体内的环状带状导体，以及用于在圆柱形导体和带状物之间传输和/或接收的馈电点并且设置带状导体以使得其长度可以容易地调整，提供了一种用于磁共振成像装置的天线装置，其以期望的共振频率产生垂直于圆柱体的中心轴线的磁场分量并且在不使用电容器的情况下显示灵敏度，并且不对气缸的直径方向上的尺寸施加任何限制。

37. 发明授权

US08803526B2 Balun and magnetic resonance imaging apparatus 有权
标题翻译：平衡和磁共振成像装置
公开(公告)号：US08803526B2
公开(公告)日：2014-08-12
申请号：US13142439
申请日：2010-01-28
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： G01V3/00
CPC分类号： G01R33/3685
摘要： The present invention provides a technique for maintaining a function for effectively blocking common mode noise with a simple configuration, even in the case where unbalance occurs in characteristic impedance of a coaxial cable in an MRI apparatus, and improving the performance of an RF coil. In a circuit where a balun is established by parallel connection with the coaxial cable, multiple serial resonance circuits having different resonance frequencies are connected in parallel. A value of each constitutional element of each of the serial resonance circuits is adjusted in such a manner that the frequency for blocking the common mode noise of the entire balun falls into a range between the resonance frequencies of these serial resonance circuits.
摘要翻译：本发明提供一种技术，即使在MRI装置中的同轴电缆的特性阻抗发生不平衡的情况下，也能够提高RF线圈的性能的情况下，以简单的结构保持用于有效阻断共模噪声的功能。在通过与同轴电缆并联建立平衡 - 不平衡转换器的电路中，并联连接具有不同谐振频率的多个串联谐振电路。每个串联谐振电路的每个结构元件的值被调整为使得阻挡整个平衡 - 不平衡转换器的共模噪声的频率落入这些串联谐振电路的谐振频率之间的范围内。

38. 发明申请

US20140191756A1 MEDICAL IMAGE IMAGING DEVICE 审中-公开
标题翻译：医学图像成像装置
公开(公告)号：US20140191756A1
公开(公告)日：2014-07-10
申请号：US14240441
申请日：2012-07-27
申请人： Suguru Yokosawa , Yo Taniguchi , Yoshitaka Bito , Yoshihisa Soutome
发明人： Suguru Yokosawa , Yo Taniguchi , Yoshitaka Bito , Yoshihisa Soutome
IPC分类号： G01R33/483
CPC分类号： G01R33/483 , A61B5/0037 , A61B5/0042 , A61B5/055 , G01R33/543
摘要： A technique in a medical imaging apparatus being capable of setting any plane in three-dimensional space as an imaging slice is provided, allowing an automatically-set imaging slice to be configured to suit user's preferences, and determine a position of the imaging slice being configured, with respect to an imaging target subject automatically with a high degree of accuracy. Reference information for specifying the imaging slice, set by the user for each imaging site, is associated with the anatomical feature of the imaging site, so as to generate an imaging slice parameter. Upon actual imaging, the imaging slice parameter and the anatomical feature of the imaging target subject obtained by scout imaging are used to determine the imaging slice position of the imaging target subject.
摘要翻译：提供能够将三维空间中的任何平面设置为成像切片的医疗成像设备中的技术，允许自动设置的成像切片被配置为适合用户的偏好，并且确定被配置的成像切片的位置，相对于成像目标物体自动地以高精度。用于指定用于每个成像部位的用户的成像切片的参考信息与成像部位的解剖特征相关联，以便生成成像切片参数。在实际成像时，使用通过侦察成像获得的成像目标对象的成像切片参数和解剖特征来确定成像目标对象的成像切片位置。

39. 发明申请

US20130314091A1 RF COIL AND MAGNETIC RESONANCE IMAGING DEVICE 有权
标题翻译：射频线圈和磁共振成像装置
公开(公告)号：US20130314091A1
公开(公告)日：2013-11-28
申请号：US13984855
申请日：2012-02-01
申请人： Yosuke Otake , Yoshihisa Soutome , Ryota Sato , Yoshitaka Bito , Koji Hirata
发明人： Yosuke Otake , Yoshihisa Soutome , Ryota Sato , Yoshitaka Bito , Koji Hirata
IPC分类号： G01R33/36
CPC分类号： G01R33/365 , G01R33/34053 , G01R33/34069 , G01R33/34076 , G01R33/3415 , G01R33/3635 , G01R33/3657 , G01R33/3678 , G01R33/422
摘要： To provide a technique for sufficiently eliminating magnetic coupling between RF coils and improving image quality when a multi-element multi-tuned RF coil is used as a receive RF coil for an MRI device. In the invention, each of RF coils which constitute a multi-element multi-tuned RF coil which is used as a receive RF coil for an MRI device is provided with an inter-coil magnetic coupling prevention circuit which resonates at each frequency to which each RF coil is tuned and provides a high impedance. The inter-coil magnetic coupling prevention circuit adjusts an inductor and a capacitor so that both of a circuit on the side of a pre-amplifier viewed from both ends of a signal reception circuit and a circuit on the side of the signal reception circuit viewed from both ends of a serial resonance circuit connected to the pre-amplifier resonate at a plurality of frequencies to which the respective RF coils are tuned.
摘要翻译：提供一种用于充分消除RF线圈之间的磁耦合并且当多元素多调谐RF线圈用作MRI装置的接收RF线圈时提高图像质量的技术。在本发明中，构成用作MRI装置的接收RF线圈的多元素多调谐RF线圈的每个RF线圈都设置有线圈间磁耦合防止电路，该电路在每个频率下共振， RF线圈被调谐并提供高阻抗。线圈间磁耦合防止电路调整电感器和电容器，使得从信号接收电路的两端观看的前置放大器侧的电路和从信号接收电路侧观察的电路连接到前置放大器的串联谐振电路的两端以相应的RF线圈调谐到的多个频率谐振。

40. 发明申请

US20120306497A1 RF RECEPTION COIL AND MAGNETIC RESONANCE IMAGING APPARATUS USING SAME 有权
标题翻译： RF接收线圈和使用相同的磁共振成像装置
公开(公告)号：US20120306497A1
公开(公告)日：2012-12-06
申请号：US13577241
申请日：2011-01-26
申请人： Yukio Kaneko , Hideta Habara , Yoshihisa Soutome , Yosuke Otake , Hisaaki Ochi , Yoshitaka Bito
发明人： Yukio Kaneko , Hideta Habara , Yoshihisa Soutome , Yosuke Otake , Hisaaki Ochi , Yoshitaka Bito
IPC分类号： G01R33/34
CPC分类号： G01R33/5659 , G01R33/34076 , G01R33/3415 , G01R33/3657 , G01R33/3664 , G01R33/3678
摘要： There is provided a technique for improving quality of images obtained with an MRI apparatus by using the geometric structures of the conventional RF transmission coil and RF reception coil and without increasing burden on patients or MRI technicians. A conductor loop of an RF reception coil disposed between a subject and an RF transmission coil is used also as a loop for magnetic field adjustment in order to shield or enhance a rotating magnetic field B1 generated by the RF transmission coil. Further, the conductor loop operated as a conductor loop for magnetic field adjustment among the conductor loops constituting the RF reception coil is driven so that inhomogeneity of the rotating magnetic field B1 is reduced.
摘要翻译：提供了一种通过使用常规RF传输线圈和RF接收线圈的几何结构来提高使用MRI装置获得的图像质量并且不增加患者或MRI技术人员负担的技术。设置在被检体和RF传输线圈之间的RF接收线圈的导体环也用作用于磁场调整的环路，以便屏蔽或增强由RF传输线圈产生的旋转磁场B1。此外，作为构成RF接收线圈的导体环路之间用于磁场调整的导体回路的导体回路被驱动，使得旋转磁场B1的不均匀性降低。

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