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1. 发明授权

US4903703A Conversation device of MR imaging apparatus 失效
标题翻译：磁共振成像装置对话装置
公开(公告)号：US4903703A
公开(公告)日：1990-02-27
申请号：US195296
申请日：1988-05-18
申请人： Yoshiki Igarashi , Tuyosi Shudo
发明人： Yoshiki Igarashi , Tuyosi Shudo
IPC分类号： A61B5/055 , G01R33/28 , G01R33/385 , H04R1/46
CPC分类号： A61B5/055 , G01R33/283 , G01R33/3854 , H04R1/46 , A61B5/4504 , A61B5/7405
摘要： The conversation device of an MR imaging apparatus including a magnet for generating a static magnetic field, a gradient field coil disposed between pole pieces of the magnet and used for endowing an NMR signal with positional information, a high-frequency coil disposed in the gradient field coil for transmitting an electromagnetic wave and for detecting the NMR signal, and a bed disposed in the high-frequency coil for holding a person to be inspected, is disclosed. In this conversation device, a bone conduction microphone insensitive to a magnetic field and surrounding noise is mounted on an auxiliary member (which is used for placing the to-be-inspected person at a predetermined position on the bed) so that the bone conduction microphone can be kept in contact with that part of the to-be-inspected person which can conduct the voice of the to-be-inspected person by a bone.
摘要翻译：包括用于产生静磁场的磁体的MR成像设备的会话装置，设置在磁体的极片之间并用于赋予NMR信号与位置信息的梯度场线圈，设置在梯度场中的高频线圈公开了用于发送电磁波并检测NMR信号的线圈，以及设置在用于保持被检查者的高频线圈中的床。在该会话装置中，对辅助构件（用于将被检查者放置在床上的预定位置上）安装对磁场和周围噪声不敏感的骨传导麦克风，使得骨传导麦克风可以与被检查人员的那一部分保持联系，可以用骨头进行被检查人的声音。

2. 发明授权

US5611341A External trigger imaging method and apparatus in magnetic resonance inspection apparatus 失效
标题翻译：磁共振检测装置中的外部触发成像方法和装置
公开(公告)号：US5611341A
公开(公告)日：1997-03-18
申请号：US180801
申请日：1994-01-10
申请人： Toshiaki Aritomi , Tuyosi Shudo , Syouji Kondou , Kazuo Suzuki
发明人： Toshiaki Aritomi , Tuyosi Shudo , Syouji Kondou , Kazuo Suzuki
IPC分类号： A61B5/055 , G01R33/28 , G01R33/32 , G01R33/54
CPC分类号： G01R33/54
摘要： An external trigger method in a magnetic resonance inspection apparatus includes the steps of inputting collectively imaging control data including an imaging portion of a subject, the kind of sequences, a time interval between the sequences and the number of times of repetition of the sequences, executing a pre-processing sequence corresponding to the imaging sequence set to be first executed, and checking whether the time interval until the start of the imaging sequence to be next executed is set to a predetermined value. The imaging sequence is started by an external trigger when the time interval is set to the indefinite value. The imaging sequence is started after the passage of the time of the predetermined value when the time interval is set to the predetermined value.
摘要翻译：在磁共振检查装置中的外部触发方法包括以下步骤：集体地输入包括被摄体的成像部分，序列的种类，序列之间的时间间隔和序列的重复次数的成像控制数据，执行对应于首先执行的成像序列的预处理序列，并且检查直到下一次执行的成像序列的开始的时间间隔是否被设置为预定值。当时间间隔设置为不定值时，成像序列由外部触发启动。当时间间隔被设定为预定值时，在经过预定值的时间之后开始成像序列。

3. 发明授权

US5471141A Method and apparatus for regulating radio frequency pulse 失效
标题翻译：用于调节射频脉冲的方法和装置
公开(公告)号：US5471141A
公开(公告)日：1995-11-28
申请号：US376085
申请日：1995-01-20
申请人： Makoto Yoshida , Naoki Satoh , Hidehiko Asoh , Tuyosi Shudo , Ryuzaburo Takeda , Jun'ichi Taguchi
发明人： Makoto Yoshida , Naoki Satoh , Hidehiko Asoh , Tuyosi Shudo , Ryuzaburo Takeda , Jun'ichi Taguchi
IPC分类号： A61B5/055 , G01R33/46 , G01R33/58 , G01R33/48
CPC分类号： G01R33/583
摘要： When image information obtained on the basis of an NMR signal, e.g. MRI, is acquired, a radio frequency pulse is set so that a strong signal can be obtained particularly from a portion of interest among the sample. To accomplish this object, the occurrence of signals from portions of the sample other than the selected portion of interest is inhibited in advance of obtaining information (an image) of the sample. Various radio frequency pulses are then irradiated to the sample and a suitable radio frequency pulse is determined on the basis of the resulting signal.
摘要翻译：当基于NMR信号获得的图像信息，例如， MRI，设置射频脉冲，使得能够从样本中的感兴趣部分获得强信号。为了实现该目的，在获得样本的信息（图像）之前，抑制了来自所选样本的除了所选择的部分之外的部分的信号的发生。然后将各种射频脉冲照射到样品上，并根据得到的信号确定合适的射频脉冲。

4. 发明授权

US5084676A Nuclear magnetic resonance apparatus 失效
标题翻译：核磁共振装置
公开(公告)号：US5084676A
公开(公告)日：1992-01-28
申请号：US454262
申请日：1989-12-21
申请人： Norihide Saho , Shinji Yamamoto , Tuyosi Shudo , Masayuki Otsuka , Tohsuke Hirata , Katsuaki Kikuchi , Shinichi Shimode , Takeo Nemoto
发明人： Norihide Saho , Shinji Yamamoto , Tuyosi Shudo , Masayuki Otsuka , Tohsuke Hirata , Katsuaki Kikuchi , Shinichi Shimode , Takeo Nemoto
IPC分类号： G01R33/385
CPC分类号： G01R33/3854 , G01R33/385
摘要： A nuclear magnetic resonance apparatus in accordance with the present invention includes ferro-magnetic field generation means and gradient field generation means and fixes the gradient field generation means at a predetermined position inside a cylindrical space by a support member. An elastic member is interposed between the support member and the gradient field generation means, and means for improving rigidity of the gradient field generation means, such as another support member and a fastening jig of the gradient field generation means, is disposed and fixed to the elastic member described above. In the manner image quality can be improved and noise can be reduced.
摘要翻译：根据本发明的核磁共振装置包括铁磁场产生装置和梯度场产生装置，并且通过支撑构件将梯度场产生装置固定在圆柱形空间内的预定位置处。弹性构件插入在支撑构件和梯度场产生装置之间，并且用于提高诸如梯度场产生装置的另一支撑构件和紧固夹具的梯度场产生装置的刚度的装置被固定到弹性构件。可以提高图像质量，降低噪音。

5. 发明授权

US5113166A Magnetic field gradient coil system 失效
标题翻译：磁场梯度线圈系统
公开(公告)号：US5113166A
公开(公告)日：1992-05-12
申请号：US447863
申请日：1989-12-08
申请人： Goh Miyajima , Takao Takahashi , Tuyosi Shudo , Shohei Suzuki
发明人： Goh Miyajima , Takao Takahashi , Tuyosi Shudo , Shohei Suzuki
IPC分类号： G01R33/20 , A61B5/026 , A61B5/055 , G01R33/385 , H01F7/20
CPC分类号： G01R33/385
摘要： A magnetic field gradient coil system for use in a magnetic resonance imaging apparatus forming a magnetic field gradient in a direction of a Z-axis of an X, Y, Z orthogonal coordinate system having its origin at a selected position in the imaging apparatus comprises one pair of first coils and one pair of second coils having their centers on the Z-axis and having the same radius, the coils of each coil pair disposed symmetrically with respect to an XY plane including the origin, the coils of the second coil pair disposed more distant from the origin than the coils of the first coil pair, the coils of the first and second coil pairs disposed on one side of the origin supplied with current in the same direction, the coils disposed on the other side of the origin supplied with current opposite to the direction of current in the coils on the one side of the origin, each of the coils of the first coil pair disposed where the value of the Z-axis magnetic field component of first order at a selected position on the Z-axis becomes substantially maximum, and the ampere-turn and position of each of the coils of the second coil pair selected so that, at the selected position, the Z-axis magnetic field components of third and fifth orders provided by the second coil pair have values which can substantially cancel the Z-axis magnetic field components of third and fifth orders provided by the first coil pair.
摘要翻译：一种磁场梯度线圈系统，用于在成像装置的选定位置处形成其原点位于X，Y，Z正交坐标系的Z轴方向上的磁场梯度的磁共振成像装置包括一个一对第一线圈和一对第二线圈，其中心在Z轴上并且具有相同的半径，每个线圈对的线圈相对于包括原点的XY平面对称设置，第二线圈对的线圈被设置离原点远离第一线圈对的线圈，设置在原点一侧的第一和第二线圈对的线圈沿相同方向提供电流，设置在原点另一侧的线圈被提供与原点一侧的线圈中的电流方向相反的电流，第一线圈对的每个线圈设置在第一级的Z轴磁场分量的值 Z轴上的选择位置变得基本上最大，并且选择第二线圈对的每个线圈的安匝和位置，使得在选定位置处提供第三和第五阶的Z轴磁场分量通过第二线圈对具有可以基本上消除由第一线圈对提供的第三和第五阶的Z轴磁场分量的值。

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