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1. 发明申请

US20130234710A1 PET-MRI APPARATUS 有权
标题翻译： PET-MRI装置
公开(公告)号：US20130234710A1
公开(公告)日：2013-09-12
申请号：US13873706
申请日：2013-04-30
申请人： NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES , TOSHIBA MEDICAL SYSTEMS CORPORATION
发明人： Iwao KANNO , Takayuki OBATA , Taiga YAMAYA , Kazuya OKAMOTO , Takuzo TAKAYAMA , Hitoshi YAMAGATA
IPC分类号： G01R33/422
CPC分类号： G01R33/422 , A61B5/0035 , A61B5/055 , A61B6/037 , A61B6/4417 , A61B6/5235 , A61B6/5247 , G01R33/481 , G01T1/1603
摘要： In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a transmitting radio frequency coil applies a radio frequency magnetic field on a subject placed in a static magnetic field. A detector is formed in a ring shape, disposed on a side adjacent to an outer circumference of the transmitting radio frequency coil, includes at least two PET detectors disposed with a space therebetween in an axial direction of a bore so as to interpose the magnetic field center of the static magnetic field therebetween, and detects gamma rays emitted from positron emitting radionuclides injected into the subject. Radio frequency shields are each formed in an approximately cylindrical shape, disposed between the transmitting radio frequency coil and the detector, and shield the radio frequency magnetic field generated by the transmitting radio frequency coil.
摘要翻译：在实施例的PET（正电子发射断层摄影）-MRI（磁共振成像）装置中，发射射频线圈对放置在静磁场中的被摄体施加射频磁场。检测器形成为环形，设置在与发射射频线圈的外周相邻的一侧，包括至少两个在孔的轴向方向上设置有空间的PET检测器，以便将磁场并且检测从注射到被检体内的正电子发射放射性核素发出的γ射线。射频屏蔽各自形成为大致圆筒形，设置在发射射频线圈和检测器之间，并屏蔽由发射射频线圈产生的射频磁场。

2. 发明申请

US20130241555A1 PET-MRI APPARATUS 有权
标题翻译： PET-MRI装置
公开(公告)号：US20130241555A1
公开(公告)日：2013-09-19
申请号：US13874795
申请日：2013-05-01
申请人： NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES , TOSHIBA MEDICAL SYSTEMS CORPORATION
发明人： Takayuki OBATA , Taiga YAMAYA , Iwao KANNO , Hitoshi YAMAGATA , Takuzo TAKAYAMA , Kazuya OKAMOTO
IPC分类号： G01R33/28
CPC分类号： G01R33/28 , A61B5/0035 , A61B5/055 , A61B6/037 , A61B6/4417 , G01R33/481 , G01T1/1603
摘要： In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a magnet that is a seamless structure generates a static magnetic field in a bore having a cylindrical shape. First detectors and second detectors are each formed in a ring shape and detect gamma rays emitted from positron emitting radionuclides injected into a subject. The first detectors and the second detectors are disposed with a space therebetween in an axial direction of the bore so as to interpose the magnetic field center of the static magnetic field therebetween.
摘要翻译：在实施例的PET（正电子发射断层摄影）-MRI（磁共振成像）装置中，作为无缝结构的磁体在具有圆柱形状的孔中产生静磁场。第一检测器和第二检测器各自形成为环形，并且检测从注射到受试者中的正电子发射放射性核素发射的γ射线。第一检测器和第二检测器在孔的轴向方向上设置有空间，以将静磁场的磁场中心插入其间。

3. 发明申请

US20160169991A1 MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：US20160169991A1
公开(公告)日：2016-06-16
申请号：US14961245
申请日：2015-12-07
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MEDICAL SYSTEMS CORPORATION
发明人： Sojiyuuro KATO , Kazuya OKAMOTO , Kazuyuki SOEJIMA
IPC分类号： G01R33/36 , G01R33/54
CPC分类号： G01R33/3692
摘要： In one embodiment, an MRI apparatus includes a wireless RF coil; a control side oscillator configured to output a control-side clock signal used for executing a pulse sequence; and a synchronization signal transmission circuit configured to wirelessly transmit a synchronization signal to the wireless RF coil in an executing period of the pulse sequence, except an MR-signal detection period during which the wireless RF coil detects a magnetic resonance signal, wherein the synchronization signal is within a frequency band of a Larmor frequency and reflects a phase of the control-side clock signal.
摘要翻译：在一个实施例中，MRI装置包括无线RF线圈; 控制侧振荡器，被配置为输出用于执行脉冲序列的控制侧时钟信号; 以及同步信号发送电路，其被配置为在所述无线RF线圈检测到磁共振信号的MR信号检测期间除了在所述脉冲序列的执行期间内向所述无线RF线圈无线地发送同步信号，其中，所述同步信号在拉莫尔频率的频带内，并且反映控制侧时钟信号的相位。

4. 发明申请

US20150221189A1 DISCRIMINATION OBJECT AND MEDICAL DEVICE 审中-公开
标题翻译：歧视目标和医疗设备
公开(公告)号：US20150221189A1
公开(公告)日：2015-08-06
申请号：US14689241
申请日：2015-04-17
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MEDICAL SYSTEMS CORPORATION
发明人： Kazuya OKAMOTO , Takashi KAWANO
IPC分类号： G08B5/36
CPC分类号： G08B5/36 , A61B5/055 , A61B2562/08 , G08B13/24
摘要： According to one embodiment, a discrimination object includes a display part and an attaching part. The display part is configured to display whether a target is permitted to be brought in a magnetic resonance imaging room. The attaching part is configured to attach the display part with the target on which whether the target is permitted to be brought in the magnetic resonance imaging room should be displayed. The attaching part has a tubular structure in a state where the attaching part has been attached with the target.
摘要翻译：根据一个实施例，鉴别对象包括显示部分和附接部分。显示部被配置为显示是否允许目标被带入磁共振成像室。安装部被配置为将显示部附着到目标被允许带入磁共振成像室的目标上。安装部具有在安装部附着有目标物的状态下的管状结构。

5. 发明申请

US20190170839A1 MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
公开(公告)号：US20190170839A1
公开(公告)日：2019-06-06
申请号：US16268192
申请日：2019-02-05
申请人： Toshiba Medical Systems Corporation
发明人： Sadanori TOMIHA , Koji AKITA , Hideo KASAMI , Kazuya OKAMOTO
IPC分类号： G01R33/36
摘要： A magnetic resonance imaging apparatus according to an embodiment includes a wireless communication unit, a radio frequency (RF) coil, and a specifying unit. The wireless communication unit includes an antenna and that transmits and receives a wireless signal through the antenna. The RF coil includes one or more antennas and that receives the wireless signal and to respond to the received wireless signal through the one or more antennas. The specifying unit that specifies the position and the orientation of the RF coil on the basis of a response result indicated by the response from the RF coil.

6. 发明申请

US20150045653A1 PET-MRI APPARATUS 审中-公开
标题翻译： PET-MRI装置
公开(公告)号：US20150045653A1
公开(公告)日：2015-02-12
申请号：US14522024
申请日：2014-10-23
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Kazuya OKAMOTO , Takuzo Takayama , Hitoshi Yamagata
IPC分类号： G01R33/48 , G01R33/385 , A61B6/03 , G01R33/30
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/055 , A61B5/0555 , A61B6/037 , G01R33/307 , G01R33/385 , G01T1/1603
摘要： A positron emission tomography (PET)-magnetic resonance imaging (MRI) apparatus according to an embodiment includes a gantry having a static magnetic field magnet, a gradient coil, and a radio frequency coil, a PET detector, and a moving mechanism. The static magnetic field magnet generates a static magnetic field in a bore having an approximately cylindrical shape. The gradient coil is disposed on an inner circumference side of the static magnetic field magnet and applies a gradient magnetic field to an object disposed in the bore. The radio frequency coil is disposed on an inner circumference side of the gradient coil and applies a radio frequency magnetic field to the object. The PET detector detects gamma rays emitted from a positron-emitting radionuclide injected into the object. The moving mechanism causes the PET detector in the gantry along the axial direction of the bore.
摘要翻译：根据实施例的正电子发射断层摄影（PET）磁共振成像（MRI）装置包括具有静磁场磁体，梯度线圈和射频线圈，PET检测器和移动机构的机架。静磁场磁体在具有近似圆筒形状的孔中产生静磁场。梯度线圈设置在静磁场磁体的内周侧，并且对设置在孔中的物体施加梯度磁场。射频线圈设置在梯度线圈的内周侧，并向物体施加射频磁场。 PET检测器检测从注射到物体中的正电子发射放射性核素发射的γ射线。移动机构使得台架中的PET检测器沿孔的轴向方向。

7. 发明申请

US20140021954A1 MAGNETIC RESONANCE IMAGING APPARATUS AND RF COIL DEVICE 有权
标题翻译：磁共振成像装置和RF线圈装置
公开(公告)号：US20140021954A1
公开(公告)日：2014-01-23
申请号：US13945370
申请日：2013-07-18
申请人： TOSHIBA MEDICAL SYSTEMS CORPORATION , KABUSHIKI KAISHA TOSHIBA
发明人： Kazuya OKAMOTO , Hiromitsu TAKAMORI , Yoshinori HAMAMURA
IPC分类号： G01R33/36
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621
摘要： According to one embodiment, an MRI apparatus (20) obtains a nuclear magnetic resonance signal from an RF coil device (100) which detects the nuclear magnetic resonance signal emitted from an object (P), and this MRI apparatus (20) includes a first radio communication unit (200), a second radio communication unit (300) and an image reconstruction unit (56). The first radio communication unit (200) obtains the nuclear magnetic resonance signal detected by the RF coil device (100), and wirelessly transmits the nuclear magnetic resonance signal in a digitized state via an induced electric field. The second radio communication unit (300) receives the nuclear magnetic resonance signal wirelessly transmitted from the first radio communication unit (200) via the induced electric field. The image reconstruction unit (56) reconstructs image data of the object (P) based on the nuclear magnetic resonance signal received by the second radio communication unit (300).
摘要翻译：根据一个实施例，MRI装置（20）从检测从物体（P）发射的核磁共振信号的RF线圈装置（100）获得核磁共振信号，该MRI装置（20）包括第一无线电通信单元（200），第二无线电通信单元（300）和图像重建单元（56）。第一无线电通信单元（200）获得由RF线圈装置（100）检测的核磁共振信号，并且经由感应电场以数字化状态无线地发送核磁共振信号。第二无线电通信单元（300）经由感应电场接收从第一无线电通信单元（200）无线发送的核磁共振信号。图像重建单元（56）基于由第二无线电通信单元（300）接收的核磁共振信号重建对象（P）的图像数据。

8. 发明申请

US20180106878A1 MAGNETIC RESONANCE IMAGING APPARATUS AND TRANSMISSION CONTROL METHOD 审中-公开
公开(公告)号：US20180106878A1
公开(公告)日：2018-04-19
申请号：US15820718
申请日：2017-11-22
申请人： TOSHIBA MEDICAL SYSTEMS CORPORATION
发明人： Kazuyuki SOEJIMA , Haruki NAKAMURA , Takuma KAWAI , Kazuya OKAMOTO
IPC分类号： G01R33/54 , G01R33/36 , A61B5/055 , A61B5/00 , G01R33/561
CPC分类号： G01R33/543 , A61B5/0037 , A61B5/055 , G01R33/36 , G01R33/3607 , G01R33/5612
摘要： According to one embodiment, a magnetic resonance imaging apparatus provided with a plurality of transmission channels includes a signal processing unit and a control unit. The signal processing unit acquires a radio frequency magnetic field emitted from each of the plurality of transmission channels through a receiver coil mounted on an object and measure a phase of the radio frequency magnetic field. The control unit determines a phase difference between the plurality of transmission channels based on the phase of the radio frequency magnetic field of each of the plurality of transmission channels measured by the signal processing unit. The control unit controls a phase of a radio frequency pulse inputted to each of the plurality of transmission channels, based on the phase difference.

9. 发明申请

US20160091576A1 MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：US20160091576A1
公开(公告)日：2016-03-31
申请号：US14855717
申请日：2015-09-16
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Sadanori TOMIHA , Yoshitomo SAKAKURA , Kazuya OKAMOTO , Takahiro ISHIHARA
IPC分类号： G01R33/34 , G01R33/42
CPC分类号： G01R33/34076 , G01R33/422
摘要： A magnetic resonance imaging apparatus according to an embodiment includes an RF coil and an RF shield. The RF coil is formed in a substantially cylindrical shape. The RF shield is formed in a substantially cylindrical shape and is disposed on an outer circumferential side of the RF coil. The RF shield is provided with a plurality of slits that are in a form of a line extending in an axial direction and having an asymmetrical length in the axial direction with respect to a center in the axial direction and are disposed so as to alternately switch positions thereof in the axial direction along a circumferential direction.
摘要翻译：根据实施例的磁共振成像装置包括RF线圈和RF屏蔽。 RF线圈形成为大致圆筒形状。 RF屏蔽形成为大致圆筒状，配置在RF线圈的外周侧。 RF屏蔽体设置有多个狭缝，该狭缝为沿轴向延伸的线，并且在轴向上相对于轴向方向的中心具有不对称的长度，并且设置成交替地切换位置沿着圆周方向的轴向。

10. 发明申请

US20150253399A1 MAGNETIC RESONANCE IMAGING APPARATUS AND RADIO FREQUENCY COIL UNIT 审中-公开
标题翻译：磁共振成像装置和无线电频率线圈单元
公开(公告)号：US20150253399A1
公开(公告)日：2015-09-10
申请号：US14633753
申请日：2015-02-27
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Kazuya OKAMOTO
IPC分类号： G01R33/36
CPC分类号： G01R33/3664 , G01R33/3415
摘要： According to one embodiment, a radio frequency coil unit includes coil elements, first switching parts and second switching parts. The coil elements are arranged in a first direction and a second direction. Each of the first switching parts and each of the second switching parts are installed in a corresponding coil element of the coil elements and switch the corresponding coil element between an on state and an off state. At least two of the first switching parts are connected in series in the first direction by a first control signal line. At least two of the second switching parts are connected in series in the second direction by a second control signal line.
摘要翻译：根据一个实施例，射频线圈单元包括线圈元件，第一开关部件和第二开关部件。线圈元件沿第一方向和第二方向排列。第一开关部件和第二开关部件中的每一个安装在线圈元件的相应的线圈元件中，并将相应的线圈元件在导通状态和断开状态之间切换。第一开关部件中的至少两个通过第一控制信号线在第一方向上串联连接。第二开关部件中的至少两个通过第二控制信号线在第二方向串联连接。

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