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1. 发明申请

US20070035301A1 Magnetic resonance imaging apparatus 失效
标题翻译：磁共振成像装置
公开(公告)号：US20070035301A1
公开(公告)日：2007-02-15
申请号：US11501893
申请日：2006-08-10
申请人： Kazuto Nakabayashi , Kazuya Okamoto
发明人： Kazuto Nakabayashi , Kazuya Okamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/28 , G01R33/56375
摘要： A coil support unit for use in a magnetic resonance imaging apparatus provided with a top board for placing thereon a subject, and a radio frequency coil provided on an upper surface of the top board, the magnetic resonance imaging apparatus imaging the subject utilizing the radio frequency coil, the coil support unit includes a port configured to electrically connect the radio frequency coil to a signal cable, the signal cable transmitting at least one of a transmission signal supplied to the radio frequency coil, and a magnetic resonance signal detected by the radio frequency coil, and a support member provided on the upper surface of the top board and including a guide groove formed therein, the guide groove permitting the port to slide therein.
摘要翻译：一种用于磁共振成像设备的线圈支撑单元，该磁共振成像设备设置有用于放置在其上的对象的顶板和设置在顶板的上表面上的射频线圈，所述磁共振成像设备利用射频线圈，线圈支撑单元包括被配置为将射频线圈电连接到信号电缆的端口，信号电缆发送提供给射频线圈的发送信号中的至少一个以及由射频检测的磁共振信号线圈和设置在顶板的上表面上并且包括形成在其中的引导槽的支撑构件，所述引导槽允许端口在其中滑动。

2. 发明授权

US07570056B2 Magnetic resonance imaging apparatus 失效
标题翻译：磁共振成像装置
公开(公告)号：US07570056B2
公开(公告)日：2009-08-04
申请号：US11501893
申请日：2006-08-10
申请人： Kazuto Nakabayashi , Kazuya Okamoto
发明人： Kazuto Nakabayashi , Kazuya Okamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/28 , G01R33/56375
摘要： A coil support unit for use in a magnetic resonance imaging apparatus provided with a top board for placing thereon a subject, and a radio frequency coil provided on an upper surface of the top board, the magnetic resonance imaging apparatus imaging the subject utilizing the radio frequency coil, the coil support unit includes a port configured to electrically connect the radio frequency coil to a signal cable, the signal cable transmitting at least one of a transmission signal supplied to the radio frequency coil, and a magnetic resonance signal detected by the radio frequency coil, and a support member provided on the upper surface of the top board and including a guide groove formed therein, the guide groove permitting the port to slide therein.
摘要翻译：一种用于磁共振成像设备的线圈支撑单元，该磁共振成像设备设置有用于放置在其上的对象的顶板和设置在顶板的上表面上的射频线圈，所述磁共振成像设备利用射频线圈，线圈支撑单元包括被配置为将射频线圈电连接到信号电缆的端口，信号电缆发送提供给射频线圈的发送信号中的至少一个以及由射频检测的磁共振信号线圈和设置在顶板的上表面上并且包括形成在其中的引导槽的支撑构件，所述引导槽允许端口在其中滑动。

3. 发明授权

US5051699A Magnetic resonance imaging system 失效
标题翻译：磁共振成像系统
公开(公告)号：US5051699A
公开(公告)日：1991-09-24
申请号：US400059
申请日：1989-08-29
申请人： Masatoshi Hanawa , Kazuto Nakabayashi
发明人： Masatoshi Hanawa , Kazuto Nakabayashi
IPC分类号： G01R33/485 , G01R33/565
CPC分类号： G01R33/56527 , G01R33/485
摘要： A magnetic resonance imaging system includes a static magnetic field generating section, a gradient magnetic field applying section, an RF pulse applying section, a sequence control section, a receiving section, and an imaging processing section. The sequence control section causes an RF pulse to excite magnetic resonance, causes at least one of the RF pulse and the gradient field to produce an initial magnetic resonance echo, applies a read gradient field to the imaging volume upon reception of the magnetic resonance echo, and inverts the read gradient field at least once to produce at least one magnetic resonance echo in addition to the initial magnetic resonance echo. The receiving section adds and averages data of a plurality of such magnetic resonance echoes or performs an addition or subtraction of the magnetic resonance echoes.
摘要翻译：磁共振成像系统包括静磁场产生部分，梯度磁场施加部分，RF脉冲施加部分，序列控制部分，接收部分和成像处理部分。序列控制部分使RF脉冲激发磁共振，使RF脉冲和梯度场中的至少一个产生初始磁共振回波，在接收到磁共振回波时将读取的梯度场应用于成像体积，并且将读取的梯度场反转至少一次以产生除了初始磁共振回波之外的至少一个磁共振回波。接收部分添加并平均多个这样的磁共振回波的数据，或执行磁共振回波的加法或减法。

4. 发明授权

US5144243A RF coil system for use in magnetic resonance imaging apparatus 失效
标题翻译：用于磁共振成像装置的RF线圈系统
公开(公告)号：US5144243A
公开(公告)日：1992-09-01
申请号：US654183
申请日：1991-02-13
申请人： Kazuto Nakabayashi , Timothy R. Fox
发明人： Kazuto Nakabayashi , Timothy R. Fox
IPC分类号： A61B5/055 , G01R33/34 , G01R33/3415
CPC分类号： G01R33/3415
摘要： An RF coil system, used for a magnetic resonance imaging apparatus and adapted to perform at least one of application of an excitation high-frequency magnetic field and detection of magnetic resonance signals, comprises a plurality of coil elements arranged at regularly spaced intervals without overlap therebetween, an RF circuit for putting at least one of the coil elements into an operative state or an inoperative state, a neutralizing circuit for neutralizing inductive coupling between the coil elements, a tuning circuit for tuning at least one of the coil elements to a given frequency, an adder circuit for adding an output signal of the tuning circuit and conductors for electrically connecting the coil elements, the RF circuit, the neutralizing circuit and the adder circuit.
摘要翻译：用于磁共振成像装置并适于执行激发高频磁场的施加和磁共振信号检测中的至少一个的RF线圈系统包括以规则间隔的间隔排列而不重叠的多个线圈元件用于将至少一个线圈元件置于操作状态或非工作状态的RF电路，用于中和线圈元件之间的感应耦合的中和电路，用于将至少一个线圈元件调谐到给定频率的调谐电路，用于将调谐电路的输出信号和用于电连接线圈元件，RF电路，中和电路和加法器电路的导体相加的加法器电路。

5. 发明授权

US5028872A Magnetic resonance imaging system 失效
标题翻译：磁共振成像系统
公开(公告)号：US5028872A
公开(公告)日：1991-07-02
申请号：US393008
申请日：1989-08-11
申请人： Kazuto Nakabayashi
发明人： Kazuto Nakabayashi
IPC分类号： G12B17/02 , A61B5/055 , G01N33/22 , G01R33/32 , G01R33/421 , G01R33/422
CPC分类号： A61B5/0555 , G01R33/421 , G01R33/422
摘要： A magnetic resonance imaging (MRI) system which includes a main shield member arranged in the cylindrical housing; and a sub shield member which is electrically connected to the main shield member and is arranged outside the housing to cover a region where the object under examination is placed. Thus, a magnetic resonance signal can be prevented from being electromagnetically mixed with the disturbance electromagnetic wave, and an MRI image can be accurately formed. The sub shield member covers only a desired region of a patient. For this reason, the patient can satisfactorily receive external light, the feeling of oppression can be greatly eliminated, and the shield member can be rendered compact. The sub shield member includes a lid shield member which is detachably attached to the main shield member, and a cover shield member which covers a portion extending from the main shield member. According to the intensity of a disturbance electromagnetic wave, the lid shield member and the cover shield member are selectively employed.
摘要翻译：一种磁共振成像（MRI）系统，其包括布置在所述圆柱形壳体中的主屏蔽构件; 以及子屏蔽构件，其电连接到主屏蔽构件并且布置在壳体的外部以覆盖放置被检查对象的区域。因此，可以防止磁共振信号与干扰电磁波电磁混合，并且可以精确地形成MRI图像。副屏蔽构件仅覆盖患者的期望区域。因此，患者能够令人满意地接收外部光，可以大大消除压迫感，能够使屏蔽部件变得紧凑。副屏蔽构件包括可拆卸地附接到主屏蔽构件的盖屏蔽构件和覆盖从主屏蔽构件延伸的部分的盖屏蔽构件。根据干扰电磁波的强度，选择性地使用盖屏蔽构件和盖屏蔽构件。

6. 发明申请

US20080246477A1 Magnetic resonance imaging apparatus, RF coil system, and magnetic resonance imaging method 有权
标题翻译：磁共振成像装置，RF线圈系统和磁共振成像方法
公开(公告)号：US20080246477A1
公开(公告)日：2008-10-09
申请号：US12078753
申请日：2008-04-04
申请人： Kazuto Nakabayashi
发明人： Kazuto Nakabayashi
IPC分类号： G01R33/48 , G01R33/32
CPC分类号： G01R33/3415 , G01R33/34046 , G01R33/3621 , G01R33/3692
摘要： A magnetic resonance imaging apparatus has at least one RF coil and a data processing control unit. The RF coil that generates unique information, receives a nuclear magnetic resonance signal, and wirelessly transmits the received nuclear magnetic resonance signal and the unique information. The data processing control unit receives the wirelessly transmitted nuclear magnetic resonance signal and the unique information, and generates image data based on the nuclear magnetic resonance signal in accordance with the unique information.
摘要翻译：磁共振成像装置具有至少一个RF线圈和数据处理控制单元。产生独特信息的RF线圈接收核磁共振信号，并且无线地发送接收的核磁共振信号和唯一信息。数据处理控制单元接收无线发送的核磁共振信号和唯一信息，并且根据该独特信息生成基于核磁共振信号的图像数据。

7. 发明申请

US20080088311A1 Magnetic resonance apparatus 有权
标题翻译：磁共振装置
公开(公告)号：US20080088311A1
公开(公告)日：2008-04-17
申请号：US11907198
申请日：2007-10-10
申请人： Kazuto Nakabayashi , Masatoshi Hanawa
发明人： Kazuto Nakabayashi , Masatoshi Hanawa
IPC分类号： G01R33/3873
CPC分类号： G01R33/3873 , G01R33/3804
摘要： A magnetic resonance apparatus in which magnetic metal pieces are accommodated in an accommodation section so as to correct uniformity in a main magnetic field, includes an acquisition unit which acquires temperature information related to at least one of a temperature of the magnetic metal pieces accommodated in the accommodation section, a temperature of the accommodation section, and a temperature of a position in the vicinity of the accommodation section, and a temperature adjustment unit which adjusts the temperature of the magnetic metal pieces to a target temperature by preheating the magnetic metal pieces on the basis of the temperature information acquired by the acquisition unit.
摘要翻译：磁性金属片被容纳在收纳部中以校正主磁场的均匀性的磁共振装置包括获取单元，该获取单元获取与容纳在该磁场中的磁性金属片的温度中的至少一个相关的温度信息收容部的温度，收容部的温度以及收纳部附近的位置的温度，以及温度调节部，其通过将磁性金属片预热到目标温度而将磁性金属片的温度调整为目标温度由采集单元获取的温度信息的基础。

8. 发明授权

US4983918A Magnetic resonance imaging system 失效
标题翻译：磁共振成像系统
公开(公告)号：US4983918A
公开(公告)日：1991-01-08
申请号：US399930
申请日：1989-08-29
申请人： Kazuto Nakabayashi
发明人： Kazuto Nakabayashi
IPC分类号： A61B5/055 , G01R33/48 , G01R33/485 , G01R33/54 , G01R33/565
CPC分类号： G01R33/4828 , G01R33/485 , G01R33/56527
摘要： A magnetic resonance imaging system includes a static magnetic field generating section, a gradient magnetic field applying section, an RF pulse applying section, a sequence control section, a receiving section, and an imaging processing section. The sequence control section controls a sequence so as to generate a 180.degree. pulse at a timing at which a peak of the 180.degree. pulse appears at t=TE'/2, assuming that TE'=TE-n.tau.c (where TE is the echo time for a proton, .tau.c is the period in which phases of spins of water and fat match with each other and which is obtained on the basis of a chemical shift amount of protons of water and fat, and n is an integer of 1 or more), and a peak of a 90.degree. pulse appears at t-0, generate a read gradient magnetic field Gr whose strength condition is set to cause an echo peak to appear at t=TE=TE'+n.tau.c, and generate a second 180.degree. pulse at T.pi.2 for an echo time TE2' for a second MR echo signalT.pi.2=(TE2'-TE1)/2.
摘要翻译：磁共振成像系统包括静磁场产生部分，梯度磁场施加部分，RF脉冲施加部分，序列控制部分，接收部分和成像处理部分。序列控制部分控制序列，以便在t = TE'/ 2出现180度脉冲峰值的时刻产生180度脉冲，假定TE'= TE-n tau c（其中TE为质子的回波时间τc是水和脂肪的自旋相互相互匹配的时期，其基于水和脂肪的质子的化学位移量获得，并且n是 1或更多），并且在t-0处出现90度脉冲的峰值，产生读取梯度磁场Gr，其强度条件被设置为在t = TE = TE'+ n tau c处出现回波峰值，并且在T pi 2处产生用于第二MR回波信号T pi 2 =（TE 2'-TE 1）/ 2的回波时间TE2'的第二180度脉冲。

9. 发明申请

US20070096739A1 Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：US20070096739A1
公开(公告)日：2007-05-03
申请号：US11588229
申请日：2006-10-27
申请人： Kazuto Nakabayashi
发明人： Kazuto Nakabayashi
IPC分类号： G01V3/00
CPC分类号： G01R33/3415
摘要： A magnetic resonance imaging apparatus includes a top plate on which an patient to be imaged is disposed, a plurality of positioning units that determines setting positions of RF coils detachable from the top plate in a plurality of different positions, and a detecting unit that detects the setting positions of the RF coils based on one of the positioning units that is used in order to determine the setting positions of the RF coils.
摘要翻译：一种磁共振成像设备，包括：一个顶板，待成像的患者被放置在该顶板上;多个定位单元，用于确定可在多个不同位置从顶板拆卸的RF线圈的设置位置;以及检测单元，基于用于确定RF线圈的设置位置的定位单元之一来设置RF线圈的位置。

10. 发明授权

US5349298A RF coil system for MRI 失效
标题翻译：射频线圈系统用于MRI
公开(公告)号：US5349298A
公开(公告)日：1994-09-20
申请号：US16684
申请日：1993-02-11
申请人： Kazuto Nakabayashi
发明人： Kazuto Nakabayashi
IPC分类号： A61B5/055 , A61M25/095 , G01R33/36 , G01R33/20
CPC分类号： G01R33/3628
摘要： An RF coil system for MRI comprises a coil unit for producing an exciting RF magnetic field or receiving an MR signal. A distributed constant line is connected to the coil unit and is formed into a length less than n.multidot.(.lambda./4) (n is a positive integer of one or more), where .lambda. is an wavelength of the RF signal or MR signal. A lumped constant circuit is connected in series to the distributed constant line and virtually forming the length of n.multidot.(.lambda./4) in cooperation operatively with the distributed constant line.
摘要翻译：用于MRI的RF线圈系统包括用于产生激励的RF磁场或接收MR信号的线圈单元。分布常数线连接到线圈单元，并且形成为小于nx（λ/ 4）的长度（n是一个或多个的正整数），其中λ是RF信号或MR信号的波长。集中常数电路与分布常数线串联连接，并与分布常数线可操作地实际形成nx（λ/ 4）的长度。

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