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公开(公告)号：US07136669B2
公开(公告)日：2006-11-14
申请号：US10935034
申请日：2004-09-07
申请人： Etsuji Yamamoto
发明人： Etsuji Yamamoto
IPC分类号： H04B1/00
CPC分类号： H04B1/401
摘要： A radio communication apparatus including an operator control section with at least one actuator for appointing a function setting that may be recorded in a first data structure and thereafter detected and recorded in a second data structure wherein a microprocessor may compare the two settings and issue a modification notification indicating that the initial setting has been changed.
摘要翻译： 一种无线电通信装置，包括具有至少一个致动器的操作员控制部分，用于指定可以记录在第一数据结构中的功能设置，然后以第二数据结构检测和记录，其中微处理器可以比较两个设置并发布修改 指示初始设置已更改的通知。
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公开(公告)号：US06788955B2
公开(公告)日：2004-09-07
申请号：US09997119
申请日：2001-11-28
申请人： Etsuji Yamamoto
发明人： Etsuji Yamamoto
IPC分类号： H04Q720
CPC分类号： H04B1/401
摘要： In a radio communication apparatus according to the present invention, an expansion of the functional capabilities to allow for checking whether functional settings made for a previous communication are different from functional settings for a current communication. Then, if so, notification is made so that the functional settings can be restored to their original states. When an operator sets status registration mode by means of predetermined keys on an operator section for the occasion of an operator change, for example, the micro controller unit (MCU) records functional setting data at that point in the data table of a RAM. Then, when the operator sets a status confirmation mode by the use of predetermined keys in order to resume communication, the MCU records functional setting data at that point corresponding to the functional setting data for the previous communication and the functional items associated therewith. Then, the MCU makes a comparison between the current functional setting data and the previous functional setting data, for each functional item. If the current functional setting data does not coincide with the previous functional setting data, notification is made by the use of an indicator lamp and a liquid crystal display section.
摘要翻译： 在根据本发明的无线电通信装置中，扩展功能能力以允许检查对于先前通信进行的功能设置是否不同于当前通信的功能设置。 然后，如果是这样，就进行通知，使得功能设置可以恢复到其原始状态。 例如，当操作员在操作员部分为预定的键设置状态登记模式时，例如，微控制器单元（MCU）记录RAM的数据表中该点的功能设置数据。 然后，当操作者通过使用预定密钥设置状态确认模式以恢复通信时，MCU记录在与先前通信的功能设置数据相对应的那一点处的功能设置数据和与其相关联的功能项。 然后，对于每个功能项目，MCU对当前功能设置数据和先前功能设置数据进行比较。 如果当前的功能设定数据与先前的功能设定数据不一致，则通过使用指示灯和液晶显示部进行通知。
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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。
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公开(公告)号：US5559434A
公开(公告)日：1996-09-24
申请号：US516892
申请日：1995-08-18
CPC分类号： G01R33/34046 , G01R33/3642 , G01R33/3657 , G01R33/3678
摘要： An MRI RF coil including first and second ring elements having a plurality of peripheral segments connected in ring shape which are apart from each other along a common vertical axial line. The RF coil also includes a plurality of axial conductive segments for connecting the first and second ring elements electrically to each other at the contacts of the plurality of peripheral segments with a plurality of current loops being formed by neighboring axial conductive segments and two peripheral segments connected thereby. Further, at least one control signal feeding point is positioned at any one of the peripheral segments of the first or second ring elements.
摘要翻译： 一种MRI RF线圈，其包括第一和第二环形元件，所述第一和第二环形元件具有连接成环形的多个周边段，它们沿着共同的垂直轴线彼此分开。 RF线圈还包括多个轴向导电段，用于在多个周边段的触点处将第一和第二环形元件彼此电连接，多个电流环由相邻的轴向导电段形成，并且两个外围段连接 从而。 此外，至少一个控制信号馈送点位于第一或第二环形元件的任何一个外围段上。
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公开(公告)号：US5539311A
公开(公告)日：1996-07-23
申请号：US160807
申请日：1993-12-03
IPC分类号： G01R33/561 , G01V3/00
CPC分类号： G01R33/56554
摘要： In magnetic resonance imaging, a first echo train is obtained by applying a readout gradient magnetic field to a region of interest to be imaged and periodically inverting the polarity of the readout gradient magnetic field, without applying an encoding gradient magnetic field to the region of interest. A periodic change of phase shift of the first echo train is detected from the first echo train. Information indicating phase shifts of all of the echoes in the first echo train is obtained using the periodic change of phase shift. A second echo train is obtained by applying a readout gradient magnetic field and an encoding magnetic field to the region of interest and periodically inverting the polarity of the readout gradient magnetic field. Phases of echoes in the second echo train are corrected using the information indicating phase shifts of all of the echoes in the first echo train.
摘要翻译： 在磁共振成像中，通过将读出梯度磁场施加到要成像的感兴趣区域并周期性地反转读出梯度磁场的极性，而不对感兴趣的区域施加编码梯度磁场，获得第一回波串 。 从第一回波列检测第一回波串的相移的周期性变化。 使用相移的周期性变化来获得指示第一回波列中的所有回波的相移的信息。 通过将读出梯度磁场和编码磁场施加到感兴趣的区域并周期性地反转读出梯度磁场的极性来获得第二回波串。 使用指示第一回波列中的所有回波的相移的信息来校正第二回波列中的回波相位。
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公开(公告)号：US5528145A
公开(公告)日：1996-06-18
申请号：US275348
申请日：1994-07-15
申请人： Satoshi Hirata , Yoshitaka Bito , Etsuji Yamamoto
发明人： Satoshi Hirata , Yoshitaka Bito , Etsuji Yamamoto
IPC分类号： G01R33/561 , G01R33/565 , G01R33/20
CPC分类号： G01R33/5615 , G01R33/5616 , G01R33/56527 , G01R33/56554
摘要： A high-speed magnetic resonance spectroscopic imaging method for obtaining information relating to an object placed in a space by irradiating the object placed in the space applied with a static magnetic field and field gradients in three different directions so as to excite a nuclear spin in the object. At least one of the field gradients is applied while inverting a sign thereof periodically and a magnetic resonance signal generated by excitation of the nuclear spin is measured. A Fourier transform is applied to the measured magnetic resonance signal thereby to obtain a chemical shift image and a measurement spectral bandwidth is set to a value not larger than a frequency difference between two different chemical shifts having frequencies remotest from each other among a plurality of chemical shifts intended to be measured, the measurement spectral bandwidth being determined by a reciprocal of an inversion period of the field gradient which is applied while inverting a sign thereof periodically. The method enables setting of spatial resolution and spectral bandwidth independently.
摘要翻译： 一种高速磁共振光谱成像方法，用于通过照射放置在施加有三个不同方向的静磁场和场梯度的空间中的物体来获得与放置在空间中的物体相关的信息，以便激发在 目的。 应用场梯度中的至少一个，同时周期性地反转其符号，并且测量由核自旋的激发产生的磁共振信号。 对所测量的磁共振信号进行傅里叶变换，从而获得化学位移图像，并且将测量谱带宽设定为不同于多个化学物质中具有彼此偏离的频率的两个不同化学位移之间的频率差的值 测量频谱带宽由周期性地反转其符号时施加的场梯度的反转周期的倒数确定。 该方法可以独立设置空间分辨率和光谱带宽。
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公开(公告)号：US5489847A
公开(公告)日：1996-02-06
申请号：US252624
申请日：1994-06-01
申请人： Takayuki Nabeshima , Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Kageyoshi Katakura
发明人： Takayuki Nabeshima , Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Kageyoshi Katakura
CPC分类号： G01R33/34053 , G01R33/3415 , G01R33/365 , G01R33/3678 , G01R33/3628
摘要： An RF probe for MRI, in which a plurality of unit coils including conductive loops having resonance capacitors and inductors connected with the conductive loops in series are arranged so as to be distant from each other with a predetermined distance, electromagnetic coupling being produced between at least two inductors to remove electromagnetic coupling between the unit coils.
摘要翻译： 一种用于MRI的RF探针，其中包括具有谐振电容器的导电回路和串联的导电回路的电感器的多个单位线圈布置成彼此远离预定距离，至少在至少 两个电感器去除单元线圈之间的电磁耦合。
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公开(公告)号：US5382902A
公开(公告)日：1995-01-17
申请号：US985645
申请日：1992-12-07
申请人： Yo Taniguchi , Etsuji Yamamoto
发明人： Yo Taniguchi , Etsuji Yamamoto
IPC分类号： A61B5/055 , G01R33/32 , G01R33/563 , G01R33/567 , G01V3/00
CPC分类号： G01R33/5676
摘要： A magnetic resonance imaging method for obtaining an image of an object laid in a space in which a static magnetic field is applied, so as to substantially eliminate motional artifacts. The method includes sequentially measuring a plurality of magnetic resonance views with a plurality of encodings by repeating a measurement sequence of exciting nuclear spins in said object, applying a phase-encoding field gradient along a first direction with programmed time integral to encode the excited spins, and detecting the encoded spins in the presence of a readout field gradient along a second direction to generate a magnetic resonance view so that measurements of magnetic resonance views with at least low-order encoding are obtained during the repetition of the measurement sequence. Thereafter respective magnetic resonance views are subjected to a first Fourier transformation so as to generate a plurality of projection views with a plurality of encodings forming a data matrix in a hybrid domain, displacements in respective projection views due to motion of the object are corrected using displacement information obtained from projection views with low-order encodings so as to generate a corrected data matrix in the hybrid domain, and the corrected data matrix is subjected to a second Fourier transformation so as to generate the image of the object.
摘要翻译： 一种磁共振成像方法，用于获得放置在施加静磁场的空间中的物体的图像，以便基本上消除运动伪像。 该方法包括通过重复所述物体中激发的核自旋的测量序列来顺序地测量具有多个编码的多个磁共振视图，沿着第一方向施加相位编码场梯度以编程的时间积分来编码激励的自旋， 以及在沿着第二方向存在读出场梯度的情况下检测编码的旋转以产生磁共振视图，使得在重复测量序列期间获得具有至少低阶编码的磁共振视图的测量。 然后对各磁共振视图进行第一傅里叶变换，以便在混合域中产生多个形成数据矩阵的编码的多个投影视图，由于对象的运动而在各个投影视图中的位移使用位移进行校正 从具有低阶编码的投影视图获得的信息，以便在混合域中产生校正数据矩阵，并且对经校正的数据矩阵进行第二傅立叶变换，以便生成对象的图像。
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公开(公告)号：US5221898A
公开(公告)日：1993-06-22
申请号：US798907
申请日：1991-11-27
IPC分类号： G01R33/561 , G01R33/563
CPC分类号： G01R33/56308 , G01R33/5616 , G01R33/56316
摘要： This invention relates to a ultra-high speed nuclear magnetic resonance fluid imaging method for selectively reconstructing projected images of a fluid from an echo train generated by the use of a readout gradient magnetic field which inverses periodically. A pulse-like encoding gradient magnetic field is used in combination with a readout gradient magnetic field which inverses periodically, so as to generate an echo train containing alternately echoes whose phase change of magnetization due to a flow is emphasized and echoes whose phase change of magnetization due to the flow is corrected, and subjected sequentially to phase encoding. A data train containing only the echoes whose phase change of magnetization due to the flow is emphasized and a data train containing only the echoes whose phase change of magnetization due to the flow is corrected are formed from sampling data of these echoes, respectively, and two images are then obtained by subjecting them individually to two-dimensional Fourier transform. Both of these images are then subtracted.
摘要翻译： 本发明涉及一种超高速核磁共振流体成像方法，用于从通过使用周期性反转的读出梯度磁场产生的回波序列中选择性地重构流体的投影图像。 脉冲式编码梯度磁场与周期性反转的读出梯度磁场结合使用，以便生成包含交替回波的回波串，该回波串被强调由于流动引起的磁化相位变化，并且回波其磁化相位变化 由于流程被校正，并且顺序地进行相位编码。 仅包含其中由于流动引起的磁化相位变化的回波的数据列被分别由这些回波的采样数据分别形成，并且仅包含校正由流动引起的磁化相位变化的回波的数据列分别形成 然后通过对它们进行二维傅立叶变换而获得图像。 然后将这两个图像相减。
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公开(公告)号：US5107216A
公开(公告)日：1992-04-21
申请号：US473428
申请日：1990-02-01
IPC分类号： G01R33/32 , A61B5/055 , G01R33/343 , G01R33/36
CPC分类号： G01R33/3657 , G01R33/343
摘要： In an imaging apparatus using the nuclear magnetic resonance, a solenoid coil and a slot-resonator coil are combined with each other so as to constitute a quadrature-phase detection probe. In order to operate the slot-resonator coil at low frequency, inductance is added to the slot-resonator coil. Further in order to cut the coupling between a transmitting coil and a receiving coil in a cross coil system, a capacitor together with the added inductance to form a resonant circuit is connected in parallel to the inductance. A favorable probe can be obtained in a vertical-magnetic field type imaging apparatus.
摘要翻译： 在使用核磁共振的成像装置中，螺线管线圈和缝隙谐振器线圈彼此组合以构成正交相位检测探针。 为了以低频操作缝隙谐振器线圈，电感被加到缝隙谐振器线圈上。 此外，为了切断交叉线圈系统中的发送线圈和接收线圈之间的耦合，电容器与附加的电感一起形成谐振电路并联连接到电感。 可以在垂直磁场型成像装置中获得良好的探针。
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