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1. 发明申请

WO2008078284A3 RF COIL FOR USE IN AN MR IMAGING SYSTEM, IN COMBINATION WITH A METAMATERIAL 审中-公开
标题翻译： RF线圈用于MR成像系统，与METAMATERIAL组合
公开(公告)号：WO2008078284A3
公开(公告)日：2008-08-21
申请号：PCT/IB2007055198
申请日：2007-12-18
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , LUEDEKE KAI-MICHAEL , LEUSSLER CHRISTOPH
发明人： LUEDEKE KAI-MICHAEL , LEUSSLER CHRISTOPH
IPC分类号： G01R33/34 , G01R33/422 , H01Q15/00
CPC分类号： G01R33/341 , G01R33/422 , H01Q15/0086 , H01Q21/065
摘要： An RF coil is proposed for use as an RF antenna for a MR imaging system, for transmitting RF excitation signals and for receiving MR relaxation signals. The RF coil of the invention includes an array of patches (1) which are capacitively coupled with each other. The array of patches forms a resonant surface on which surface currents can be resonantly excited for generating at least one field modus.
摘要翻译： RF线圈被提出用作用于MR成像系统的RF天线，用于发射RF激励信号和用于接收MR松弛信号。本发明的RF线圈包括彼此电容耦合的贴片阵列（1）。贴片阵列形成谐振表面，表面电流可以共振地激发，以产生至少一个场模。

2. 发明申请

WO2011036603A3 MR IMAGING SYSTEM WITH FREELY ACCESSIBLE EXAMINATION VOLUME 审中-公开
标题翻译：具有可访问量的成像系统
公开(公告)号：WO2011036603A3
公开(公告)日：2011-05-26
申请号：PCT/IB2010054136
申请日：2010-09-14
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , LEUSSLER CHRISTOPH , WIRTZ DANIEL
发明人： LEUSSLER CHRISTOPH , WIRTZ DANIEL
IPC分类号： G01R33/343 , G01R33/345
CPC分类号： G01R33/345 , G01R33/341 , G01R33/343 , G01R33/4802
摘要： The invention relates to a magnetic resonance imaging system (1) comprising: a main magnet for generating a uniform, steady magnetic field within an examination volume (21), an RF waveguide (19) for guiding travelling RF waves along an axis of the examination volume (21) in at least one travelling mode of the RF waveguide (19), at least one RF antenna (9) for transmitting RF pulses to and/or receiving MR signals from a body (10) of a patient positioned in the examination volume (21), wherein the RF antenna (9) is configured to couple to the at least one travelling mode of the RF waveguide (19), and wherein the RF antenna (9) is located on the imaging system such that the examination volume (21) is freely accessible, a control unit (15) for controlling the temporal succession of RF pulses, and a reconstruction unit (17) for reconstructing an MR image from the received MR signals. Further, the invention relates to an RF antenna (9) for an MR imaging system (1), wherein the RF antenna (9) is formed by an electrically conductive plate (22) comprising at least one recess (23).
摘要翻译：本发明涉及一种磁共振成像系统（1），包括：用于在检查体积（21）内产生均匀的稳定磁场的主磁体，用于沿检查轴引导行波RF波的RF波导（19）在RF波导（19）的至少一个行进模式中的体积（21），用于将RF脉冲发送到和/或接收来自位于检查中的患者的身体（10）的MR信号的至少一个RF天线（9）（21），其中所述RF天线（9）被配置为耦合到所述RF波导（19）的所述至少一个行进模式，并且其中所述RF天线（9）位于所述成像系统上，使得所述检查体积（21）可自由访问，用于控制RF脉冲的时间连续的控制单元（15），以及用于从所接收的MR信号重建MR图像的重建单元（17）。此外，本发明涉及一种用于MR成像系统（1）的RF天线（9），其中RF天线（9）由包括至少一个凹部（23）的导电板（22）形成。

3. 发明申请

WO2010018504A3 METHOD AND MONITORING DEVICE FOR PERFORMING AN RF-SAFE MIT SCAN 审中-公开
标题翻译：用于执行RF-SAFE MIT扫描的方法和监视设备
公开(公告)号：WO2010018504A3
公开(公告)日：2010-06-10
申请号：PCT/IB2009053453
申请日：2009-08-07
申请人： KONINKL PHILIPS ELECTRONICS NV , VERNICKEL PETER , MAZURKEWITZ PETER , WIRTZ DANIEL , LEUSSLER CHRISTOPH , KATSCHER ULRICH , PHILIPS INTELLECTUAL PROPERTY
发明人： VERNICKEL PETER , MAZURKEWITZ PETER , WIRTZ DANIEL , LEUSSLER CHRISTOPH , KATSCHER ULRICH
IPC分类号： A61B5/05 , G01V3/10
CPC分类号： A61B5/0536 , A61B5/0522
摘要： A method and a monitoring device for performing an RF-safe MIT scan is disclosed in which it is prevented that an RF exposure, especially a specific absorption rate (SAR), imposed on an examination object, especially a patient, exceeds certain limit values during a magnetic induction tomography (MIT) scan. This is achieved on the one hand by an RF simulation method for simulating intended MIT operating parameters and calculating a resulting RF exposure of the object, and on the other hand by a monitoring device for monitoring the RF power which is applied to the object.
摘要翻译：公开了一种用于执行RF安全MIT扫描的方法和监视设备，其中防止施加在检查对象，特别是患者上的RF暴露量，特别是特定吸收率（SAR）在期间超过特定极限值磁感应断层扫描（MIT）扫描。这一方面通过用于模拟预期MIT操作参数并计算物体的最终RF暴露的RF模拟方法来实现，另一方面通过用于监测施加到物体的RF功率的监测装置来实现。

4. 发明申请

WO2006120589A3 METHOD AND CIRCUIT ARRANGEMENT FOR POWER MONITORING IN MULTI-CHANNEL TRANSMIT/RECEIVE ANTENNA DEVICES 审中-公开
标题翻译：用于多通道发射/接收天线装置中的功率监测的方法和电路装置
公开(公告)号：WO2006120589A3
公开(公告)日：2007-03-01
申请号：PCT/IB2006051311
申请日：2006-04-27
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , GRAESSLIN INGMAR , VERNICKEL PETER , LEUSSLER CHRISTOPH
发明人： GRAESSLIN INGMAR , VERNICKEL PETER , LEUSSLER CHRISTOPH
IPC分类号： H04B7/005
CPC分类号： G01R33/5612 , G01R33/288 , G01R33/3415 , G01R33/3607 , H04B17/23 , H04W52/34 , H04W52/367
摘要： Methods and circuit arrangements for operating a multi-channel transmit / receive antenna device or arrangement, comprising a power monitoring unit, especially for use in a magnetic resonance imaging (MRI) system are disclosed. These methods and circuit arrangements are especially provided for ensuring that a specific absorption rate of a patient is not exceeded in the case in which antenna devices or arrangements are used which comprise a plurality of coils and / or coil segments which are independently supplied with RF transmit signals with different amplitudes and / or phases and / or waveforms and / or power levels. A maximum power level is set for at least one of the transmit channels. An alarm state is activated if the supplied power level or the reflected power for that channel exceeds the maximum power level . A maximum sum power level is set for a plurality of transmit channels. An alarm state is activated if the supplied sum power level or the reflected sum power level for the plurality of transmit channels exceeds the maximum sum powr level.
摘要翻译：公开了用于操作多通道发射/接收天线装置或装置的方法和电路装置，其包括特别用于磁共振成像（MRI）系统的功率监测单元。特别提供了这些方法和电路装置，用于确保在使用天线装置或布置的情况下不超过患者的比吸收率，所述天线装置或布置包括多个线圈和/或线圈段，这些线圈和/或线圈段独立地提供有RF发射具有不同幅度和/或相位和/或波形和/或功率电平的信号。为至少一个发送信道设置最大功率电平。如果提供的功率电平或该通道的反射功率超过最大功率电平，则激活报警状态。为多个发送信道设置最大和功率电平。如果提供的总功率电平或多个发射信道的反射和功率电平超过最大和功率电平，则激活报警状态。

5. 发明申请

WO2009144639A2 COMBINED OPTICAL FIBER AND RF COIL ARRAY SYSTEM FOR MAGNETIC RESONANCE DATA ACQUISITION 审中-公开
标题翻译：用于磁共振数据采集的组合光纤和RF线圈阵列系统
公开(公告)号：WO2009144639A2
公开(公告)日：2009-12-03
申请号：PCT/IB2009052123
申请日：2009-05-20
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , LEUSSLER CHRISTOPH , MAZURKEWITZ PETER M
发明人： LEUSSLER CHRISTOPH , MAZURKEWITZ PETER M
IPC分类号： G01R33/28
CPC分类号： G01R33/283 , G01R33/4808
摘要： A nuclear magnetic resonance radio frequency (RF) coil arrangement (200) configured for receiving magnetic resonance RF signals from within the volume circumscribed by the RF coil arrangement, wherein the RF coil arrangement (200) further comprises at set of optical couplers (150), wherein the optical couplers (150) are adapted for receiving optical signals from the volume circumscribed by the RF coil arrangement. 5
摘要翻译：一种核磁共振射频（RF）线圈装置（200），被配置为从由RF线圈装置包围的体内接收磁共振RF信号，其中RF线圈装置（200）还包括一组光耦合器（150），其中所述光耦合器（150）适于从由所述RF线圈装置包围的体积接收光信号。五

6. 发明申请

WO2006137026A3 SIMULTANEOUS MULTINUCLEAR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：同时脉冲磁共振成像
公开(公告)号：WO2006137026A3
公开(公告)日：2007-03-29
申请号：PCT/IB2006052003
申请日：2006-06-21
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , HARVEY PAUL R , GRAESSLIN INGMAR , LEUSSLER CHRISTOPH
发明人： HARVEY PAUL R , GRAESSLIN INGMAR , LEUSSLER CHRISTOPH
IPC分类号： G01R33/36 , G01R33/3415
CPC分类号： G01R33/3415 , G01R33/3635
摘要： The invention relates to an MR device (1) for magnetic resonance imaging of a body (14) placed in an examination volume (7), the device (1) comprising a main magnet (2) for generating a stationary and substantially homogeneous main magnetic field in the examination volume (7), and an RF coil arrangement for generating RF fields in the examination volume (7) and/or for receiving MR signals from the body (14). In order to provide such an MR device, which is arranged to operate at the resonance (Larmor) frequencies of two or more different nuclear species at the same time, the invention suggests that the RF coil arrangement comprises a plurality of independent resonator elements (8, 9, 10, 11, 12, 13) which are adjacently arranged in or near the examination volume (7), wherein adjacent resonator elements (8, 9, 10, 11, 12, 13) are alternately tuned to one of two or more different MR resonance frequencies, and wherein each resonator element (8, 9, 10, 11, 12, 13) is associated with a separate signal transmission (16) and/or signal reception channel (17) of the MR device (1)
摘要翻译：本发明涉及用于放置在检查体积（7）中的体（14）的磁共振成像的MR装置（1），所述装置（1）包括主磁体（2），用于产生静止且基本均匀的主磁在检查体积（7）中的场和用于在检查体积（7）中产生RF场和/或用于从身体（14）接收MR信号的RF线圈装置。为了提供这样的MR器件，其被布置为在同时在两个或更多个不同核物种的共振（Larmor）频率下操作，本发明提出RF线圈装置包括多个独立的谐振元件（8 ，9,10,11,12,13），其相邻地布置在检查体积（7）中或附近，其中相邻的谐振器元件（8,9,10,11,12,13）交替地被调谐到两个或更多不同的MR共振频率，并且其中每个谐振器元件（8,9,10,11,12,13）与MR装置（1）的单独的信号传输（16）和/或信号接收通道（17）相关联，

7. 发明申请

WO2006117714A3 METHOD AND CIRCUIT ARRANGEMENT FOR OPERATING MULTI-CHANNEL TRANSMIT/RECEIVE ANTENNA DEVICES 审中-公开
标题翻译：用于操作多通道发射/接收天线设备的方法和电路布置
公开(公告)号：WO2006117714A3
公开(公告)日：2007-06-21
申请号：PCT/IB2006051265
申请日：2006-04-24
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , GRAESSLIN INGMAR , VERNICKEL PETER , LEUSSLER CHRISTOPH
发明人： GRAESSLIN INGMAR , VERNICKEL PETER , LEUSSLER CHRISTOPH
IPC分类号： G01R33/36
CPC分类号： G01R33/3607 , G01R33/288 , G01R33/5612 , G01R33/5659
摘要： Methods and circuit arrangements for operating a multi-channel transmit / receive antenna device or arrangement, especially for use in a magnetic resonance imaging (MRI) system, are disclosed by which RF amplifiers can be used to their full peak power capability without running the risk that the RF amplifier is damaged due to excessive reflected power at its output. Furthermore by evaluating certain forward and reflected power signals patient safety is achieved with respect to monitoring the limits of the specific absorption rate.
摘要翻译：公开了用于操作多通道发射/接收天线装置或装置的方法和电路装置，特别是用于磁共振成像（MRI）系统中的哪些RF放大器可以被用于其全峰功率能力而不运行风险 RF放大器由于其输出处的反射功率过大而损坏。此外，通过评估某些正向和反射功率信号，在监测比吸收率的限制方面实现了患者的安全性。

8. 发明申请

WO2011080697A3 DYNAMIC NUCLEAR POLARIZATION APPARATUS WITH SAMPLE TRANSPORT SYSTEM 审中-公开
标题翻译：动态核极化装置与样品运输系统
公开(公告)号：WO2011080697A3
公开(公告)日：2011-11-10
申请号：PCT/IB2010056092
申请日：2010-12-28
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , LEUSSLER CHRISTOPH , WIRTZ DANIEL , BOERNERT PETER , KEUPP JOCHEN , EGGERS HOLGER , DAVID BERND , OVERWEG JOHANNES ADRIANUS , ECKART RAINER
发明人： LEUSSLER CHRISTOPH , WIRTZ DANIEL , BOERNERT PETER , KEUPP JOCHEN , EGGERS HOLGER , DAVID BERND , OVERWEG JOHANNES ADRIANUS , ECKART RAINER
IPC分类号： G01R33/28 , G01N24/08 , G01N35/02 , G01N35/04 , G01R33/30 , G01R33/62
CPC分类号： G01R33/62 , G01R33/282 , G01R33/5601 , G01R33/5605 , G01R33/5608 , G01R33/56366 , G01R33/56383
摘要： The invention relates to a dynamic nuclear polarization apparatus (116) for continuous provision of hyperpolarized samples (114) comprising dynamically nuclear polarized nuclear spins, the apparatus (116) comprising a polarization region (106) for polarization of said nuclear spins resulting in said hyperpolarized samples, wherein the apparatus (116) further comprises: a cryostat (102) for cooling the samples (114) in the polarization region (106), a magnet (100) for providing a magnetic field to the cooled samples in the polarization region (106), a radiation source (112) for concurrently to the magnetic field provision providing a nuclear polarizing radiation to the polarization region (106) for receiving the hyperpolarized samples, a sample transport system (104) for continuously receiving unpolarized samples (114), transporting the unpolarized samples to the polarization region (106) for nuclear spin polarization and providing the resulting hyperpolarized samples (114).
摘要翻译：本发明涉及用于连续提供包含动态核极化核自旋的超极化样本（114）的动态核极化装置（116），所述装置（116）包括用于所述核自旋的极化的偏振区域（106），导致所述超极化样品，其中所述设备（116）还包括：用于冷却所述偏振区域（106）中的样品（114）的低温恒温器（102），用于向所述偏振区域中的所述冷却样品提供磁场的磁体（100） 106），用于与磁场提供同时提供用于接收超极化样本的偏振区域（106）的核偏振辐射的辐射源（112），用于连续接收非偏振样本（114）的样本传输系统（104）将非偏振样品运送到用于核自旋极化的偏振区域（106），并提供所得到的超极化样品（114）。

9. 发明申请

WO2010023586A3 RF ANTENNA ARRANGEMENTS FOR A MIT APPARATUS 审中-公开
标题翻译：射频天线安装麻省理工学院设备
公开(公告)号：WO2010023586A3
公开(公告)日：2010-06-10
申请号：PCT/IB2009053589
申请日：2009-08-14
申请人： KONINKL PHILIPS ELECTRONICS NV , VERNICKEL PETER , MAZURKEWITZ PETER , LEUSSLER CHRISTOPH , FINDEKLEE CHRISTIAN , WIRTZ DANIEL , KATSCHER ULRICH , PHILIPS INTELLECTUAL PROPERTY
发明人： VERNICKEL PETER , MAZURKEWITZ PETER , LEUSSLER CHRISTOPH , FINDEKLEE CHRISTIAN , WIRTZ DANIEL , KATSCHER ULRICH
IPC分类号： H01Q19/10 , A61B5/05 , H01Q21/28
CPC分类号： H01Q21/28 , A61B5/0522 , A61B5/0536 , H01Q19/104
摘要： Several RF antenna arrangements are disclosed, particularly for use as RF transmitter and/or receiver antenna arrangements in a MIT apparatus, with which an increased signal-to-noise ratio, an improved MIT imaging performance, an increased spatial and temporal resolution of the generated images, a reduced acquisition time and greater measurement reliability can be obtained.
摘要翻译：公开了几种RF天线装置，特别是用作MIT装置中的RF发射器和/或接收器天线装置，利用该RF天线装置增加了信噪比，提高了MIT成像性能，增加了所生成的空间和时间分辨率图像，可以获得缩短的采集时间和更高的测量可靠性。

10. 发明申请

WO2006067727A3 MAGNETIC RESONANCE IMAGING SYSTEM AND METHOD 审中-公开
标题翻译：磁共振成像系统和方法
公开(公告)号：WO2006067727A3
公开(公告)日：2006-10-05
申请号：PCT/IB2005054312
申请日：2005-12-19
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , KATSCHER ULRICH , FINDEKLEE CHRISTIAN , VERNICKEL PETER , LEUSSLER CHRISTOPH
发明人： KATSCHER ULRICH , FINDEKLEE CHRISTIAN , VERNICKEL PETER , LEUSSLER CHRISTOPH
IPC分类号： G01R33/36
CPC分类号： G01R33/3607 , G01R33/5611
摘要： The present invention relates to a magnetic resonance imaging system (1) comprising a plurality of RF coils (4) forming a multi-coil array and furthermore to a magnetic resonance imaging method for such a system. In order to provide an MR imaging system and method in which a desired excitation pattern is achieved in a simple way, it is suggested to utilize an analytical procedure how to combine the single coil elements to obtain the most homogeneous Bl excitation possible with a given coil array. In other words, the homogeneity of the Bl field is improved in a very simple way. The sensitivity of each RF coil (4) of the coil array is scaled or weighted by a complex factor, i.e. phase and amplitude of each coil drive signal is adjusted accordingly. These complex factors are determined analytically utilizing the sensitivities S (8) of the coil elements (4) and the desired excitation pattern P (IO, 11). The invention allows an optimized control of the field distribution (RF shimming) for arbitrary RF coil arrays. With the invention a fast and easy independent phase and amplitude control of the coil elements (4) is provided for reducing body- induced RF non- uniformities, which appear in high field MR systems.
摘要翻译：本发明涉及一种磁共振成像系统（1），其包括形成多线圈阵列的多个RF线圈（4），并且还涉及用于这种系统的磁共振成像方法。为了提供其中以简单的方式实现期望的激励模式的MR成像系统和方法，建议利用分析过程如何组合单个线圈元件以获得可能具有给定线圈的最均匀的B1激励阵列。换句话说，B1场的同质性以非常简单的方式得到改善。线圈阵列的每个RF线圈（4）的灵敏度由一个复数因子缩放或加权，即相应地调整每个线圈驱动信号的相位和幅度。利用线圈元件（4）的灵敏度S（8）和期望的激励模式P（IO，11）来分析确定这些复杂因素。本发明允许对任意RF线圈阵列的场分布（RF匀场）进行优化控制。通过本发明，线圈元件（4）的快速且容易的独立相位和振幅控制被提供用于减少出现在高场MR系统中的身体诱发的RF不均匀性。

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