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31. 发明专利

JP2012183431A Magnetic resonance imaging device 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2012183431A
公开(公告)日：2012-09-27
申请号：JP2012151422
申请日：2012-07-05
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： YUI MASAO , KASAI YOSHIMORI , KUHARA SHIGEHIDE
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging device, capable of collecting movement signals sufficient for measuring movement quantity from a subject part to imaging almost simultaneously as collection of data for imaging, and directly, and more precisely providing movement-corrected images.SOLUTION: The magnetic resonance imaging device comprises an imaging signal collecting means to obtain magnetic resonance signals as imaging signals from a sample using an SSFP (Steady-State Free Precession) sequence, a movement signal collecting means to obtain movement signals in a dummy shot sequence of the SSFP sequence, a movement quantity determining means to determine movement quantity using the movement signals, a movement correcting means to execute correction processing to the imaging signals based on the movement quantity, and an image recomposing means to recompose images based on the imaging signals after the correction processing.
摘要翻译：要解决的问题：提供一种磁共振成像装置，能够收集足够的运动信号，用于测量从被摄体部分到几乎同时成像的运动量，作为用于成像的数据的收集，并且直接地，更精确地提供运动信号，校正后的图像。解决方案：磁共振成像装置包括成像信号收集装置，用于获得作为来自使用SSFP（稳态自由进动）序列的样本的成像信号的磁共振信号;移动信号收集装置，用于获得运动信号 SSFP序列的虚拟拍摄顺序，使用移动信号确定移动量的移动量确定装置，基于移动量对成像信号执行校正处理的移动校正装置，以及基于移动量的图像重构装置，校正处理后的成像信号。版权所有（C）2012，JPO＆INPIT

32. 发明专利

JP2011147560A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2011147560A
公开(公告)日：2011-08-04
申请号：JP2010010412
申请日：2010-01-20
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： KUHARA SHIGEHIDE , NINOMIYA AYAKO
IPC分类号： A61B5/055
CPC分类号： G01R33/56509 , A61B5/055 , G01R33/56325 , G01R33/5635 , G01R33/5676 , G06T7/20 , G06T2207/10088 , G06T2207/20016 , G06T2207/30048
摘要： PROBLEM TO BE SOLVED: To easily and accurately specify a resting period of coronary arteries.
SOLUTION: A magnetic resonance imaging apparatus includes: a control part 10h for controlling transmission/receiving parts 7 and 9 of RF coils 6 and 8 and a gradient magnetic field power supply 3 for repeatedly capturing sectional images of the heart in electrocardiac synchronization as a probe scan for RMC (real-time motion correction) and preparatory scan for imaging scan; a first resting period specifying processing part 10k for specifying a first resting period in which the positional variation of coronary arteries is within a fixed range during a heartbeat period based on the change of the images of the whole heart by using the repeatedly captured sectional images; a second resting period specifying processing part 10p for specifying a second resting period of the coronary arteries during the heartbeat period by tracing the movement of the coronary arteries limited in a local range including the coronary arteries with part of the sectional images generated in the same or extended resting period as the specified first resting period as targets; and a reconstruction processing part 10c for reconstructing the images based on MR data collected in the second resting period.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：容易且准确地指定冠状动脉的静息期。解决方案：磁共振成像装置包括：用于控制RF线圈6和8的发射/接收部分7和9的控制部分10h和用于重复地拍摄心脏同步心脏的截面图像的梯度磁场电源3 作为RMC的探针扫描（实时运动校正）和成像扫描的准备扫描; 第一休息期间指定处理部10k，其基于通过使用重复拍摄的截面图像对整个心脏的图像的变化，在心跳期间指定冠状动脉的位置变化在固定范围内的第一静止期间; 第二休息期间指定处理部分10p，用于通过跟踪在包括冠状动脉的局部范围中限定的冠状动脉的运动，其中部分在其中产生的部分图像来指定在心跳周期期间冠状动脉的第二静止期，延长休息期作为指定的第一休息期作为目标; 以及用于基于在第二休息期间收集的MR数据来重建图像的重构处理部分10c。版权所有（C）2011，JPO＆INPIT

33. 发明专利

JP2011143160A Magnetic resonance imaging diagnostic apparatus 有权
标题翻译：磁共振成像诊断装置
公开(公告)号：JP2011143160A
公开(公告)日：2011-07-28
申请号：JP2010008126
申请日：2010-01-18
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： KATO YUTAKA , KIMURA TOKUNORI , KUHARA SHIGEHIDE , SAKAKURA YOSHITOMO , YOSHIDA TOMOYUKI
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging diagnostic apparatus capable of cooling a subject by using air with low temperature efficiently. SOLUTION: The magnetic resonance imaging diagnostic apparatus includes a superconductive coil for forming magnetostatic field, a coil container storing the superconductive coil having an opening for containing a subject, a coolant filled in the coil container, a cooling machine for cooling the coolant, an air blower for blowing air, a duct mounted on the air blower for sending the air blown by the air blower to the subject, a heat exchanger for cooling the air in the duct, and a thermal conductive material which makes contact with at least either one of the coil container and the cooling machine for cooling the heat exchanger by thermal conductivity between the coil container or the cooling machine and the heat exchanger. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够有效地利用低温空气来冷却对象的磁共振成像诊断装置。解决方案：磁共振成像诊断装置包括用于形成静磁场的超导线圈，存储具有用于容纳被检体的开口的超导线圈的线圈容器，填充在线圈容器中的冷却剂，用于冷却冷却剂的冷却机用于吹送空气的鼓风机，安装在鼓风机上的用于将由鼓风机吹送的空气送到被检体的管道，用于冷却导管内的空气的热交换器，以及与至少接触的导热材料线圈容器和冷却机中的任一个，用于通过线圈容器或冷却机与热交换器之间的热传导来冷却热交换器。版权所有（C）2011，JPO＆INPIT

34. 发明专利

JP2011136194A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2011136194A
公开(公告)日：2011-07-14
申请号：JP2011045308
申请日：2011-03-02
申请人： Toshiba Corp , 株式会社東芝
发明人： KUHARA SHIGEHIDE
IPC分类号： A61B5/055 , G01R33/3415
CPC分类号： G01R33/3415
摘要： PROBLEM TO BE SOLVED: To reduce N/2 artifacts without sacrificing imaging time and S/N ratio in an imaging method using multiple echoes.
SOLUTION: A magnetic resonance imaging apparatus includes: a transmitting coil 2; a gradient coil 3; a sequencer 10 configured to control the transmitting coil and the gradient coil to continuously generate a plurality of echoes after a nuclear spin of a subject is excited once by a high-frequency magnetic field pulse in accordance with a predetermined pulse sequence; a plurality of independent receiving coils 41 and 42 configured to receive the echoes; and a computer 12 configured to generate a plurality of odd-numbered-echo-images and even-numbered-echo images, respectively, applying a reconstructing method associated with the plurality of independent receiving coils on the basis of odd-numbered-echoes and even-numbered-echoes in a plurality of echoes continuously generated.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：在使用多个回波的成像方法中，不会牺牲成像时间和S / N比来减少N / 2伪影。解决方案：磁共振成像装置包括：发射线圈2; 梯度线圈3; 被配置为根据预定的脉冲序列，通过高频磁场脉冲对受试者的核旋转之后控制发射线圈和梯度线圈连续产生多个回波的定序器10; 多个独立接收线圈41和42，被配置为接收回波; 以及计算机12，被配置为分别生成多个奇数回波图像和偶数回波图像，其基于奇数回波和偶数回波应用与多个独立接收线圈相关联的重建方法 - 连续生成的多个回波中的回声。版权所有（C）2011，JPO＆INPIT

35. 发明专利

JP2011078841A Magnetic resonance imaging system and magnetic resonance imaging method 有权
标题翻译：磁共振成像系统和磁共振成像方法
公开(公告)号：JP2011078841A
公开(公告)日：2011-04-21
申请号：JP2011012280
申请日：2011-01-24
申请人： Toshiba Corp , 株式会社東芝
发明人： KUHARA SHIGEHIDE
IPC分类号： A61B5/055 , G01R33/28 , G01R33/48 , G01R33/54 , G01R33/563
CPC分类号： G01R33/56383 , G01R33/543 , G01R33/5611 , G01R33/5635 , G01R33/56375
摘要： PROBLEM TO BE SOLVED: To reduce operational work, speed up imaging, and increasing accuracy in moving a patient's couch when multiple RF coils are used so as to perform imaging based on a moving bed technique.
SOLUTION: The magnetic resonance imaging system includes: static magnetic field generating means; a couch movable in a predetermined direction passing through the static magnetic field, an object to be imaged being laid on the couch; at least one reception RF coil disposed fixedly to the static magnetic field generating means; position changing means for changing a relative position formed between the couch and a magnet of the static magnetic field generating means in the predetermined direction; scanning means for scanning the object by applying a given train of pulses to the object at each changed position; reception means for receiving through the reception RF coil an echo signal that emanates from the object; reception-processing means for conversion into echo data, with given processing for reception; and image producing means for producing an MR image based on the converted echo data.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了减少操作工作，加快成像速度，并且在使用多个RF线圈时提高移动患者沙发的准确性，以便基于移动床技术执行成像。磁共振成像系统包括：静磁场产生装置; 可沿预定方向移动的沙发，穿过静磁场，要成像的物体放置在沙发上; 至少一个接收RF线圈固定地布置在静磁场产生装置上; 位置改变装置，用于在预定方向上改变在静止磁场产生装置的沙发和磁体之间形成的相对位置; 扫描装置，用于通过在每个改变的位置向所述物体施加给定的脉冲串来扫描物体; 接收装置，用于通过接收RF线圈接收从对象发出的回波信号; 用于转换成回波数据的接收处理装置，具有接收的给定处理; 以及图像产生装置，用于基于转换的回波数据产生MR图像。版权所有（C）2011，JPO＆INPIT

36. 发明专利

JP2010094238A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2010094238A
公开(公告)日：2010-04-30
申请号：JP2008266560
申请日：2008-10-15
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： KUHARA SHIGEHIDE
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus which continues to carry out appropriate imaging irrespective of fluctuations in respiration condition of a subject. SOLUTION: A main control section 10g detects respiration level of a subject 200. The main control section 10g controls related sections to image the subject 200 on the basis of magnetic resonance imaging signals collected by a collecting means when the detected respiration level is within a permitted range. In addition, the main control section 10g changes the permitted range on the basis of the detected respiration level. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁共振成像装置，其不管受试者的呼吸状况的波动如何，继续执行适当的成像。主控制部分10g检测被检体200的呼吸水平。主控制部分10g根据检测到的呼吸水平为正的收集装置收集的磁共振成像信号，控制相关部分对被检体200成像在允许范围内。此外，主控制部10g基于检测到的呼吸水平来改变允许范围。版权所有（C）2010，JPO＆INPIT

37. 发明专利

JP2009178264A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2009178264A
公开(公告)日：2009-08-13
申请号：JP2008018232
申请日：2008-01-29
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： KUHARA SHIGEHIDE
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To inform a subject of useful information for appropriately adjusting a respiratory level. SOLUTION: An NMR signal for detecting the respiratory level of the subject 200 is acquired by the operation of each section under the control of a main control section 10g. The main control section 10g detects the respiratory level of the subject 200 as a first respiratory level based on the acquired NMR signals. A respiratory synchronization sensor 13 detects the respiratory level of the subject 200 as a second respiratory level based on a physical movement of the subject 200 following respiration. The NMR signals for obtaining an image are collected by the operation of each section under the control of the main control section 10g. The main control section 10g controls the collection to collect the NMR signals when the first respiratory level is within an allowable range. The main control section 10g forms a display image in which an image indicating the first respiratory level is combined with a graph indicating the change of the second respiratory level. A display system 12 displays the display image to the subject 200. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：向受试者通知适当调整呼吸水平的有用信息。解决方案：在主控制部分10g的控制下，通过每个部分的操作来获取用于检测被检体200的呼吸水平的NMR信号。主控制部10g基于获取的NMR信号，检测被检体200的呼吸水平为第一呼吸水平。呼吸同步传感器13基于呼吸后的被检体200的物理运动，将被检体200的呼吸水平检测为第二呼吸水平。用于获得图像的NMR信号在主控制部分10g的控制下通过每个部分的操作来收集。当第一呼吸水平处于允许范围内时，主控制部分10g控制集合以收集NMR信号。主控部分10g形成显示图像，其中表示第一呼吸水平的图像与表示第二呼吸水平的变化的曲线组合。显示系统12将显示图像显示给被摄体200.版权所有：（C）2009，JPO＆INPIT

38. 发明专利

JP2008302214A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2008302214A
公开(公告)日：2008-12-18
申请号：JP2008119264
申请日：2008-04-30
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： KUHARA SHIGEHIDE
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To appropriately give aid so that the subject can readily adapt his/her respiratory level to an allowable range. SOLUTION: A main control unit 10g detects the respiration level of the subject 200. The main control unit 10g, a video transmit system 11, and a display system 12 inform the subject 200 of whether or not the detected respiratory level falls within the allowable range. When the detected respiratory level falls within the allowable range, the main control unit 10g collects magnetic resonance signals and controls respective units so as to image the body of the subject 200 on the basis of the magnetic resonance signals collected in such a manner. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：适当地给予援助，使得受试者可以容易地将他/她的呼吸水平调节到允许范围。主控制单元10g检测对象200的呼吸水平。主控制单元10g，视频发送系统11和显示系统12通知对象200检测到的呼吸水平是否落入允许范围。当检测到的呼吸水平落在允许范围内时，主控制单元10g收集磁共振信号并控制各单元，以便以这样一种方式收集的磁共振信号对被摄体200的身体进行成像。版权所有（C）2009，JPO＆INPIT

39. 发明专利

JP2004057824A Generator for gradient-resonance magnetic field used in magnetic resonance diagnostic device 有权
标题翻译：用于磁共振诊断装置的梯度共振磁场发生器
公开(公告)号：JP2004057824A
公开(公告)日：2004-02-26
申请号：JP2003207482
申请日：2003-08-13
申请人： Toshiba Corp , 株式会社東芝
发明人： MORI KIYOMI , KUHARA SHIGEHIDE
IPC分类号： G01R33/385 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a generator for a gradient magnetic field capable of relaxing the influence of switching noise.
SOLUTION: The generator for the gradient magnetic field is provided with a gradient magnetic field coil 21, a power source 20, a high voltage power source 22 which is employed during a current-rise time as an aid, switches SW1-SW5 which control the coupling of a series circuit and the high voltage power source and a low pass filters 23 and 24 interposed between the series circuit and the switches. The power source 20 comprises the series circuit in conjunction with the gradient magnetic field coil 21 which draws current from the power source 20.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够减轻开关噪声影响的梯度磁场发生器。解决方案：用于梯度磁场的发生器设有倾斜磁场线圈21，电源20，在电流上升时间期间用作辅助的高压电源22，将SW1-SW5 其控制串联电路和高压电源的耦合以及置于串联电路和开关之间的低通滤波器23和24。电源20包括结合来自电源20的电流的梯度磁场线圈21的串联电路。（C）2004，JPO

40. 发明专利

JP2002263083A MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
公开(公告)号：JP2002263083A
公开(公告)日：2002-09-17
申请号：JP2002064716
申请日：2002-03-11
申请人： TOSHIBA CORP
发明人： KUHARA SHIGEHIDE , SATO KOZO , KANAYAMA SHOICHI
IPC分类号： G01R33/48 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To constitute an image of a high S/N ratio free from an N/2 artifact and a chemical shift artifact without requiring a complicated process such as legistlation or the like based on the measurement of static magnetic field distribution in ultrahigh speed MRI, to enable imaging and blood flow imaging among artifacts even when there is a moving object such as a blood flow or the like in an image pickup region and to enable imaging not generating neurostimulation even if an intensive fast gradient magnetic field is used. SOLUTION: The spin in a subject is excited by a high frequency magnetic field applied at every predetermined repeated time and a read gradient magnetic field 51 is reversed a plurality of times within the predetermined repeated time and a phase encoded gradient magnetic field 52 is applied once at each time when the read gradient magnetic field 51 is reversed twice. Therefore, imaging can be performed without generating neurostimulation.

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