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11. 发明授权

EP2652516B1 PASSIVE B1 FIELD SHIMMING 有权转让
公开(公告)号：EP2652516B1
公开(公告)日：2019-11-27
申请号：EP11804597.0
申请日：2011-12-05
申请人： Koninklijke Philips N.V.
发明人： ZHAI, Zhiyong , MORICH, Michael Andrew , HARVEY, Paul Royston , FUDERER, Miha
IPC分类号： G01R33/34 , G01R33/54 , G01R33/565 , G01R33/24

12. 发明公开

EP3261534A1 MAGNETIC RESONANCE EXAMINATION SYSTEM WITH A MOVEABLE PATIENT CARRIER 有权转让
标题翻译：具有可移动病人载体的磁共振检查系统
公开(公告)号：EP3261534A1
公开(公告)日：2018-01-03
申请号：EP16705181.2
申请日：2016-02-18
申请人： Koninklijke Philips N.V.
发明人： HARVEY, Paul Royston , HAM, Cornelis Leonardus Gerardus
IPC分类号： A61B5/055 , A61B5/00 , G01R33/38
CPC分类号： G01R33/307 , A61B5/055 , A61B5/0555 , A61B5/704 , A61B5/7203 , G01R33/28 , G01R33/3415 , G01R33/56358 , G01R33/5673
摘要： A magnetic resonance examination system in which the patient carrier is mounted moveably in a direction transverse to the support surface and an RF antenna having a fixed geometrical relation to the support surface.

13. 发明公开

EP3825710A1 MAGNETIC RESONANCE VOLUME COIL WITH MULTIPLE INDEPENDENT TRANSMIT RECEIVE CHANNELS 审中-公开
公开(公告)号：EP3825710A1
公开(公告)日：2021-05-26
申请号：EP19210015.4
申请日：2019-11-19
申请人： Koninklijke Philips N.V.
发明人： ZHAI, Zhiyong , HARVEY, Paul Royston
IPC分类号： G01R33/3415 , G01R33/34 , G01R33/565
摘要： An ultra-high field radio-frequency (RF) coil apparatus for magnetic resonance (MR) systems, may include: a dipole-array based volume coil (2) with a plurality of straight dipole antennas (3); at least three circular conducting rings (4, 5, 6) radial surrounding the dipole-array based volume coil (2), the at least three circular conducting rings (4, 5, 6) being substantially parallel with each other, having a plurality of ports (9, 10) for receiving a set of quadrature drive signals, the RF coil apparatus further comprising at least two independent transmit/receive (T/R) RF channels (11, 12, 13, 14) for driving the dipole-array based volume coil (2) and the at least three circular conducting rings (4, 5, 6).

14. 发明公开

EP3407081A1 MAGNETIC RESONANCE IMAGING SYSTEM WITH EMERGENCY QUENCH 审中-公开
公开(公告)号：EP3407081A1
公开(公告)日：2018-11-28
申请号：EP17172126.9
申请日：2017-05-22
申请人： Koninklijke Philips N.V.
发明人： HARVEY, Paul Royston , JEAN, Eric , JENNESKENS, Theo
IPC分类号： G01R33/3815 , H01F6/02
CPC分类号： G01R33/3815 , H01F6/02
摘要： The invention relates to a magnetic resonance imaging (MRI) system with emergency quench. According to the invention, a magnetic resonance imaging system (1) comprising a superconductive magnet (2) with windings (3) for generating a magnetic field, an emergency button (4) and a ciruitry logic (5) for controlling the magnet (2) coupled to the magnet (2) and to the emergency button (4), wherein the magnet (2) is operable in a superconducting state and in a normal conductivity state, respectively, and the emergency button (4) and the circuitry logic (5) are configured in such a way that, when the magnet (2) is operated in the superconducting state, actuating the emergency button (4) by a user in a predefined first way initiates ramping down the magnetic field while dissipating energy stored in the windings (3) of the magnet (2) to an external dissipation device (6), and actuating the emergency button (4) by a user in a predefined second way which is different from the first way initiates quenching the magnetic field by heating up at least part of the windings (3) of the magnet (2) leading to a dissipation of energy stored in the windings (3) of the magnet (2) as additional heat to the magnet (2). In this way, an easy and reliable way to control a superconductive magnet (2) of an MRI system (1) is provided in an event in which the magnetic field has to be removed.

15. 发明公开

EP3126861A1 MAGNETIC RESONANCE IMAGING WITH RF NOISE DETECTION COILS 有权转让
标题翻译： MAGNETRESONANZBILDGEBUNG MIT SPULEN ZUR DETEKTION VON HF-RAUSCHEN
公开(公告)号：EP3126861A1
公开(公告)日：2017-02-08
申请号：EP15712158.3
申请日：2015-03-26
申请人： Koninklijke Philips N.V.
发明人： HARVEY, Paul Royston , DUIJVESTIJN, Michael Jozef , LORENC, Steve
IPC分类号： G01R33/36 , G01R33/565 , G01R33/422
CPC分类号： G01R33/5659 , G01R33/36 , G01R33/3607 , G01R33/422 , G01R33/583
摘要： The invention provides for a magnetic resonance imaging system (100) for acquiring magnetic resonance data (142, 144) from an imaging zone (108). Execution of the instructions causes a processor (133) controlling the MRI system to: acquire (200) imaging magnetic resonance data (142) with radio frequency excitation of the radio frequency system enabled; acquire (202) noise radio frequency data (148) using at least one RF noise detection coil, wherein the noise radio frequency data is acquired simultaneously with the imaging magnetic resonance data; acquire (204) calibration magnetic resonance data (144) with radio frequency excitation of the radio frequency system disabled; acquire (206) reference radio frequency data (146) using the at least one RF noise detection coil, wherein the reference radio frequency data is acquired simultaneously with the calibration magnetic resonance data; and calculate (208) a noise calibration (150) using the reference radio frequency data and the calibration magnetic resonance data.
摘要翻译：本发明提供一种用于从成像区域（108）获取磁共振数据（142,144）的磁共振成像系统（100）。所述指令的执行使得控制所述MRI系统的处理器（133）利用所述无线电频率系统的射频激励获取（200）成像磁共振数据（200）; 使用至少一个RF噪声检测线圈获取（202）噪声射频数据（148），其中与成像磁共振数据同时获取噪声射频数据; 利用无线电频率系统的射频激励来取得（204）校准磁共振数据（144）; 使用所述至少一个RF噪声检测线圈获取（206）参考射频数据（146），其中所述参考射频数据与所述校准磁共振数据同时获取; 并使用参考射频数据和校准磁共振数据计算（208）噪声校准（150）。

16. 发明公开

EP2652516A1 PASSIVE B1 FIELD SHIMMING 有权转让
标题翻译：被动B1场地装修
公开(公告)号：EP2652516A1
公开(公告)日：2013-10-23
申请号：EP11804597.0
申请日：2011-12-05
申请人： Koninklijke Philips N.V.
发明人： ZHAI, Zhiyong , MORICH, Michael Andrew , HARVEY, Paul Royston , FUDERER, Miha
IPC分类号： G01R33/34 , G01R33/54
摘要： Coil elements (18) generate a B1 excitation field in an examination region (14), which B1 excitation field is distorted by patient loading (e.g., wavelength effects). Passive shimming elements (22, 24) are disposed between the coil elements and the subject in order to improve the B1 field uniformity. In one embodiment, passive shimming elements include one or more dielectric rods (55) disposed below the subject which generate no substantial MR proton signal and which have a permittivity of at least 100 and preferably greater than 500. In another embodiment, tubes (24) adjacent each coil element are supplied with a dielectric liquid, a thickness of the dielectric liquid between the coil element and the subject adjusting a phase of the B1 field generated by the coil element. Active B1 shimming may be combined with passive shimming elements (22, 24) to effect an improved RF field homogeneity result.
摘要翻译：线圈元件（18）在检查区域（14）中产生B 1激励场，该B 1激励场由于患者负载（例如波长效应）而失真。无源匀场元件（22,24）设置在线圈元件和对象之间以改善B1场均匀性。在一个实施例中，无源匀场元件包括设置在受试者下方的一个或多个介电杆（55），其不产生实质的MR质子信号并且具有至少100且优选大于500的介电常数。在另一个实施例中，相邻的每个线圈元件被提供有介电液体，线圈元件和被检体之间的介电液体的厚度调节由线圈元件产生的B1场的相位。有源B 1匀场可以与无源匀场元件（22,24）组合以实现改善的RF场均匀性结果。

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