公开(公告)号：US07808241B2

公开(公告)日：2010-10-05

申请号：US12227063

申请日：2006-12-26

申请人： Masayoshi Dohata ,  Hisaaki Ochi ,  Yoshiyuki Miyamoto

发明人： Masayoshi Dohata ,  Hisaaki Ochi ,  Yoshiyuki Miyamoto

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  G01R33/34053 ,  G01R33/365 ,  G01R33/3657 ,  G01R33/3664 ,  G01R33/3806 ,  G01R33/5611 ,  G01R33/56375 ,  G01R33/56383

摘要： A vertical magnetic field type MRI apparatus is capable of high-speed-imaging a large cross section such as a whole human body while suppressing an increase in the number of channels and maintaining sensitivity to a deep portion of a subject to be high. A receiving coil is composed of a plurality of sub coils. A first sub coil (3-1) of the receiving coil is arranged in a first plane (1001) including an axis substantially parallel to the direction of a static magnetic field and forms a first current loop around the surface of the subject. A second sub coil (5-1) of the receiving coil is constituted by a pair of conductor loops (5-2, 5-3) that sandwich the subject in the vicinities of the surface of the subject and are arranged substantially symmetrically each other. The conductor loops have respective cross points (5-4, 5-5). The conductor loops are arranged with the first sub coil to ensure that the cross points are located in the first plane in which the current loop of the first sub coil is provided. An electromagnetic coupling between the first and second sub coils is not generated. The second sub coil exhibits a sensitivity distribution symmetrical to the direction of the static magnetic field. The first and second sub coils are arranged as a basic configuration and combined with each other to ensure that an electromagnetic coupling with another sub coil that exhibits a sensitivity distribution symmetrical to x and y directions is suppressed.

摘要翻译： 垂直磁场型MRI装置能够在抑制通道数量的增加并且保持对被摄体的深部的敏感性高的同时，对诸如整个人体的大截面进行高速成像。 接收线圈由多个子线圈组成。 接收线圈的第一子线圈（3-1）布置在包括基本上平行于静磁场的方向的轴线的第一平面（1001）中，并且围绕被摄体的表面形成第一电流回路。 接收线圈的第二子线圈（5-1）由一对导体环（5-2,5-3）构成，该对导体环（5-2,5-3）将被摄体夹在被检体的表面附近并彼此大致对称 。 导体环具有各自的交叉点（5-4,5-5）。 导体环与第一子线圈一起布置以确保交叉点位于提供第一子线圈的电流环的第一平面中。 不产生第一和第二子线圈之间的电磁耦合。 第二子线圈表现出与静磁场方向对称的灵敏度分布。 第一和第二子线圈被布置为基本配置并且彼此组合以确保与另外的子线圈的电磁耦合具有与x和y方向对称的灵敏度分布。

公开(公告)号：US07616981B2

公开(公告)日：2009-11-10

申请号：US10614019

申请日：2003-07-08

申请人： Yo Taniguchi ,  Hisaaki Ochi ,  Shinichiro Umemura

发明人： Yo Taniguchi ,  Hisaaki Ochi ,  Shinichiro Umemura

IPC分类号： A61B5/05

CPC分类号： G01R33/5676 ,  G01R33/56509

摘要： There is provided an inspection apparatus using nuclear magnetic resonance which can execute multi-slice and multi-frame cardiac imaging of a heart without giving any load on a subject. An inspection apparatus using nuclear magnetic resonance has static magnetic field generation means generating a static magnetic field; magnetic field gradient generation means generating a magnetic field gradient in a first, a second and a third directions orthogonal to each other; radiofrequency magnetic field generation means generating a radiofrequency magnetic field; signal detection means detecting a nuclear magnetic resonance signal (echo) produced from a subject; arithmetic processing means performing arithmetic processing of the detected nuclear magnetic resonance signal; and control means controlling the magnetic field gradient generation means and the radiofrequency magnetic field generation means, wherein the control means executes a pulse sequence acquiring a projection to determine a similarity coefficient between the projection and a reference projection, thereby detecting respiratory motion of the subject.

摘要翻译： 提供了使用核磁共振的检查装置，其可以执行心脏的多层和多帧心脏成像，而不对受试者施加任何负担。 使用核磁共振的检查装置具有产生静磁场的静磁场产生装置; 磁场梯度产生装置，在彼此正交的第一，第二和第三方向上产生磁场梯度; 产生射频磁场的射频磁场产生装置; 信号检测装置，用于检测从受检者产生的核磁共振信号（回波）; 算术处理装置执行所检测的核磁共振信号的运算处理; 以及控制装置，其控制磁场梯度产生装置和射频磁场产生装置，其中控制装置执行获取投影的脉冲序列，以确定投影和参考投影之间的相似系数，从而检测被摄体的呼吸运动。

公开(公告)号：US07414402B2

公开(公告)日：2008-08-19

申请号：US11729776

申请日：2007-03-30

申请人： Hideta Habara ,  Hisaaki Ochi

发明人： Hideta Habara ,  Hisaaki Ochi

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/3415 ,  G01R33/3453

摘要： An RF coil apparatus suitable for a high magnetic field MRI apparatus includes a plurality of subcoils arranged substantially in a cylindrical form. Each subcoil includes a first conductor part and a second conductor part. The second conductor part is disposed on the inside of a cylinder, i.e., on the test subject side. This coil apparatus includes a conduction part for attaining conduction among the subcoils, and a conduction control part for controlling a conduction state between the first conductor part and the second conductor part, conducting connection to a transmission and reception part which conducts signal transmission and reception with a subcoil, and changing over electric capacitance of the subcoil according to whether to receive or transmit. Function changeover between the multi-channel mode and the one-channel mode is accomplished by conducting connection changeover and electric capacitance changeover.

摘要翻译： 适用于高磁场MRI装置的RF线圈装置包括基本上以圆柱形形式布置的多个子线圈。 每个子线圈包括第一导体部分和第二导体部分。 第二导体部分设置在圆筒的内侧，即在测试对象侧。 该线圈装置包括用于在子线圈之间实现导通的导电部分和用于控制第一导体部分和第二导体部分之间的导通状态的导通控制部分，与传导和接收信号的发送和接收部分进行连接，该发送和接收部分用 子线圈，并根据是否接收或发送来改变子线圈的电容。 通过进行连接切换和电容切换，实现多通道模式和单通道模式之间的功能切换。

公开(公告)号：US20080169808A1

公开(公告)日：2008-07-17

申请号：US11721707

申请日：2005-12-22

申请人： Yo Taniguchi ,  Hisaaki Ochi ,  Masahiro Takizawa ,  Tetsuhiko Takahashi

发明人： Yo Taniguchi ,  Hisaaki Ochi ,  Masahiro Takizawa ,  Tetsuhiko Takahashi

IPC分类号： G01R33/565 ,  G01R33/48

CPC分类号： G01R33/56509 ,  G01R33/4824 ,  G01R33/561 ,  G01R33/5614 ,  G01R33/5616

摘要： Provided is a magnetic resonance imaging apparatus capable of highly precisely detecting and compensating body motions within a short processing time during radial scanning. The magnetic resonance imaging apparatus includes a control unit that applies radiofrequency magnetic fields and magnetic field gradients to a subject lying down in a static magnetic field and that detects magnetic resonance signals generated from the subject, and an arithmetic unit that handles the signals. The arithmetic unit performs subject's body motion detection in an image space, uses an image, which is reconstructed using the low-frequency portion of the k-space data of the image, as criterial data, produces templates by moving the criterial data in advance by predetermined magnitudes of rotations and predetermined magnitudes of translations, and uses the produced templates to perform the body motion detection.

摘要翻译： 提供一种磁共振成像装置，其能够在径向扫描期间在短的处理时间内高精度地检测和补偿身体运动。 磁共振成像装置包括：控制单元，其对位于静态磁场中的被摄体进行射频磁场和磁场梯度，并且检测从被检体产生的磁共振信号;以及运算单元，其处理该信号。 算术单元在图像空间中进行被摄体的身体运动检测，使用利用图像的k空间数据的低频部分重构的图像作为标准数据，通过预先移动标准数据来生成模板 预定的旋转角度和预定的平移量，并且使用所产生的模板来执行身体运动检测。

公开(公告)号：US20070241754A1

公开(公告)日：2007-10-18

申请号：US11630766

申请日：2005-07-20

申请人： Satoshi Hirata ,  Hisaaki Ochi

发明人： Satoshi Hirata ,  Hisaaki Ochi

IPC分类号： G01V3/14

CPC分类号： G01R33/56563

摘要： Provided is a magnetic resonance imaging system capable of reducing degradation in a magnetic resonance spectrum derived from a change in a static magnetic field. A sequence controller performs non-water-suppressed spectrum measurement (pre-scan) cyclically during water-suppressed spectrum measurement (main scan) accompanied by repetitive measurement intended for averaging of signals, and cyclically detects a water resonant frequency (water-signal peak position) and a phase value at a water-signal peak from an obtained non-water-suppressed spectrum (the cyclic pre-scan makes it possible to sense a time-varying rate of static magnetic field strength (resonant frequency)). For the water-suppressed spectrum measurement (main scan) succeeding the pre-scan, a reception-initiating phase value that is used to detect a magnetic resonance signal is set to a value calculated using the phase value at the water-signal peak position detected during the pre-scan. For averaging of measured magnetic resonance signals, data items are shifted by the value calculated from the phase value at the water-signal peak position detected during the pre-scan. Thereafter, the averaging is carried out.

摘要翻译： 本发明提供能够降低由静磁场变化引起的磁共振谱的劣化的磁共振成像系统。 序列控制器在水抑制频谱测量（主扫描）期间循环执行非水抑制频谱测量（预扫描），伴随着用于信号平均的重复测量，并循环检测水谐振频率（水信号峰位置 ）和来自所获得的非水分抑制光谱的水信号峰值处的相位值（循环预扫描使得可以感测静态磁场强度（谐振频率）的时变速率）。 对于预扫描之后的水抑制谱测量（主扫描），将用于检测磁共振信号的接收开始相位值设定为使用检测到的水信号峰位置的相位值计算出的值 在预扫描期间。 对于测量的磁共振信号的平均，数据项被移位由在预扫描期间检测的水信号峰值位置处的相位值计算的值。 此后，进行平均化。

公开(公告)号：US07164269B2

公开(公告)日：2007-01-16

申请号：US11188957

申请日：2005-07-26

申请人： Haruhiro Hasegawa ,  Hisaaki Ochi ,  Hiroyuki Yamamoto ,  Kazuo Saitoh

发明人： Haruhiro Hasegawa ,  Hisaaki Ochi ,  Hiroyuki Yamamoto ,  Kazuo Saitoh

IPC分类号： G01V3/00

CPC分类号： G01R33/34053 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34069 ,  G01R33/34092

摘要： A solenoid-type probe coil wherein superconductive thin film is used, whose quality factor is high, and which is put in an uniform magnetic field and occupies a small space is provided. For that purpose, the coil is made by piling up, in generally parallel, two or more substrates on which superconductive film is formed and connecting superconductors and normal-metal thin films through capacitance or low contact resistance.

摘要翻译： 提供了一种使用超导薄膜的螺线管型探针线圈，其质量因素高，并且被放置在均匀的磁场中并占据小的空间。 为此，线圈通过大体上平行地堆叠形成超导膜的两个或更多个基板并通过电容或低接触电阻连接超导体和正常金属薄膜而制成。

公开(公告)号：US20060119359A1

公开(公告)日：2006-06-08

申请号：US11188957

申请日：2005-07-26

申请人： Haruhiro Hasegawa ,  Hisaaki Ochi ,  Hiroyuki Yamamoto ,  Kazuo Saitoh

发明人： Haruhiro Hasegawa ,  Hisaaki Ochi ,  Hiroyuki Yamamoto ,  Kazuo Saitoh

IPC分类号： G01V3/00

CPC分类号： G01R33/34053 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34069 ,  G01R33/34092

摘要： A solenoid-type probe coil wherein superconductive thin film is used, whose quality factor is high, and which is put in an uniform magnetic field and occupies a small space is provided. For that purpose, the coil is made by piling up, in generally parallel, two or more substrates on which superconductive film is formed and connecting superconductors and normal-metal thin films through capacitance or low contact resistance.

摘要翻译： 提供了一种使用超导薄膜的螺线管型探针线圈，其质量因素高，并且被放置在均匀的磁场中并占据小的空间。 为此，线圈通过大体上平行地堆叠形成超导膜的两个或更多个基板并通过电容或低接触电阻连接超导体和正常金属薄膜而制成。

公开(公告)号：US20060055407A1

公开(公告)日：2006-03-16

申请号：US11032010

申请日：2005-01-11

申请人： Hisaaki Ochi ,  Kazuo Saitoh ,  Michiya Okada

发明人： Hisaaki Ochi ,  Kazuo Saitoh ,  Michiya Okada

IPC分类号： G01V3/00

CPC分类号： G01R33/34069 ,  G01R33/34023 ,  G01R33/34053 ,  G01R33/3635

摘要： An NMR system that enables multiplex resonance measurement includes a superconductivity reception coil, a transmission coil, and four electric current loops. The NMR system also includes an additional coil in which directions of currents that flow in an inner loop and an outer loop are opposite to each other. The additional coil and the transmission coil are arranged such that a direction of a high frequency magnetic field that is developed in the center of the additional coil when electricity is fed to the additional coil is substantially identical with a direction of a high frequency magnetic field that is developed in the center of the transmission coil when electricity is fed to the transmission coil. The electric current loop of the transmission coil is arranged substantially in the middle of the inner loop and the outer loop of the additional coil in which directions of electric currents that flow in the inner loop and the outer loop are opposite to each other.

公开(公告)号：US20130103417A1

公开(公告)日：2013-04-25

申请号：US13807259

申请日：2011-06-24

申请人： Kumiko Seto ,  Kikuo Umegaki ,  Masayuki Ohta ,  Shuntaro Yui ,  Satoshi Mitsuyama ,  Kazuki Matsuzaki ,  Hajime Sasaki ,  Takuya Kamiyama ,  Hisaaki Ochi ,  Yoshihiko Nagamine ,  Yuji Oka

发明人： Kumiko Seto ,  Kikuo Umegaki ,  Masayuki Ohta ,  Shuntaro Yui ,  Satoshi Mitsuyama ,  Kazuki Matsuzaki ,  Hajime Sasaki ,  Takuya Kamiyama ,  Hisaaki Ochi ,  Yoshihiko Nagamine ,  Yuji Oka

IPC分类号： G06Q50/22

CPC分类号： G06Q50/22 ,  G06Q10/06316 ,  G06Q10/103

摘要： Provided is a medical care support system for the sharing and reusing of medical information on the basis of a workflow which is a flow of medical-related services. A workflow step that was executed prior to an ongoing workflow step is selected by using a medical information database which has registered a workflow and information of each workflow step in association with medical information; and information is inputted by medical staff in the ongoing workflow step while the medical information registered in the selected workflow step being referred to; and the medical information being referred to and the inputted information are registered in the medical information database in association with the ongoing workflow step.

摘要翻译： 提供了一种医疗保健系统，用于基于作为医疗相关服务流程的工作流程来共享和再利用医疗信息。 通过使用已经注册了工作流的医疗信息数据库和与医疗信息相关联的每个工作流步骤的信息来选择在正在进行的工作流程步骤之前执行的工作流步骤; 并且在正在进行的工作流程步骤中由医务人员输入信息，同时参考在所选择的工作流步骤中登记的医疗信息; 并且与所进行的工作流步骤相关联地将所引用的医疗信息和输入的信息登记在医疗信息数据库中。

公开(公告)号：US08188740B2

公开(公告)日：2012-05-29

申请号：US12521336

申请日：2007-12-26

申请人： Atsushi Ninomiya ,  Yoshimi Kasai ,  Hisaaki Ochi ,  Masayoshi Dohata ,  Yoshiyuki Miyamoto ,  Shizuka Nagai

发明人： Atsushi Ninomiya ,  Yoshimi Kasai ,  Hisaaki Ochi ,  Masayoshi Dohata ,  Yoshiyuki Miyamoto ,  Shizuka Nagai

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  A61B5/055 ,  G01R33/34007 ,  G01R33/34084

摘要： The present invention provides a vertical magnetic field MRI apparatus which is capable of speeding up imaging for taking an image of any cross section of a wide area such as a total body, while suppressing increase of the number of channels and maintaining high sensitivity in a deep portion of a subject. A receiver coil unit 500 incorporates a bed coil unit 600 whose longitudinal direction agrees with a body axis direction of the test object 103, and an upper coil unit 700 which is detachably mounted on the bed coil unit 600. The bed coil unit 600 is provided with a carrying surface 601 for placing the test object 103 thereon and multiple lower sub-coils arranged in a lower part of the carrying surface 601, and the upper coil unit 700 is provided with multiple upper sub-coils which are connected to the lower sub-coils. The upper sub-coils are separated into two parts; one arranged in a flexible inner support 20-1 covering the installation surface 601 and another arranged in a flexible outer support 20-2 covering the external side of the inner support 20-1. The upper sub-coils and the lower sub-coils are connected by mounting the upper coil unit 700 on the bed coil unit 600, thereby forming the multiple types of sub-coils.

摘要翻译： 本发明提供一种垂直磁场MRI装置，其能够加速摄像以拍摄诸如全身的广泛区域的任何横截面的图像，同时抑制通道数量的增加并保持深度的高灵敏度 科目的一部分。 接收线圈单元500包括其纵向方向与测试对象103的主体轴线方向一致的床线圈单元600以及可拆卸地安装在床线圈单元600上的上线圈单元700.提供床线圈单元600 具有用于放置测试对象103的承载表面601和布置在承载表面601的下部的多个下部子线圈，并且上部线圈单元700设置有多个上部子线圈，其连接到下部子 线圈 上部子线圈分为两部分; 一个布置在覆盖安装表面601的柔性内部支撑件20-1中，另一个布置在覆盖内部支撑件20-1的外侧的柔性外部支撑件20-2中。 通过将上线圈单元700安装在床线圈单元600上而连接上子线圈和下子线圈，从而形成多种子线圈。