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1. 发明申请

WO2006134557A1 RF VOLUME COIL WITH SELECTABLE FIELD OF VIEW 审中-公开
标题翻译：具有可选择视场的RF体积线圈
公开(公告)号：WO2006134557A1
公开(公告)日：2006-12-21
申请号：PCT/IB2006/051884
申请日：2006-06-13
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D. , GAUSS, Robert, C.
发明人： ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D. , GAUSS, Robert, C.
IPC分类号： G01R33/34
CPC分类号： G01R33/34046 , G01R33/3664
摘要： A radio frequency coil for magnetic resonance imaging or spectroscopy includes a plurality of generally parallel conductive members (70) surrounding a region of interest (14). One or more end members (72, 74) are disposed generally transverse to the plurality of parallel conductive members. A generally cylindrical radio frequency shield (32) surrounds the plurality of generally parallel conductive members. Switchable circuitry (80, 80') selectably has: (i) a first switched configuration (90, 90') in which the conductive members are operatively connected with the one or more end members; and (ii) a second switched configuration (92, 92') in which the conductive members are operatively connected with the radio frequency shield. The radio frequency coil operates in a birdcage resonance mode in the first switched configuration and operates in a TEM resonance mode in the second switched configuration.
摘要翻译：用于磁共振成像或光谱的射频线圈包括围绕感兴趣区域（14）的多个大致平行的导电构件（70）。一个或多个端部构件（72,74）大致横向于多个平行导电构件设置。通常为圆柱形的射频屏蔽（32）围绕多个大致平行的导电构件。可切换电路（80,80'）可选择地具有：（i）第一开关构造（90,90'），其中导电构件与一个或多个端构件可操作地连接; 和（ii）其中导电构件与射频屏蔽可操作地连接的第二切换配置（92,92'）。射频线圈在第一切换配置中以鸟笼共振模式工作，并且在第二切换配置中以TEM共振模式操作。

2. 发明申请

WO2005043182A1 B1 FIELD CONTROL IN MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译： B1磁场共振成像中的现场控制
公开(公告)号：WO2005043182A1
公开(公告)日：2005-05-12
申请号：PCT/IB2004/052020
申请日：2004-10-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , MORICH, Michael, A. , DEMEESTER, Gordon, D. , ZHAI, Zhiyong
发明人： MORICH, Michael, A. , DEMEESTER, Gordon, D. , ZHAI, Zhiyong
IPC分类号： G01R33/32
CPC分类号： G01R33/583 , G01R33/4835
摘要： Multi-slice magnetic resonance imaging of a region of interest of an imaging subject (16) is performed using a radio frequency coil (40) arranged to generate a B 1 magnetic field in the region of interest. One or more processors (44, 82, 88, 110) determine a B1 field value for each slice that is representative of the B1 field over a selected area of the slice, accounting for subject effects on the BI field, and determine an adjusted per-slice radio frequency excitation for each slice that adjusts the B 1 field value for the slice to a selected value. A magnetic resonance imaging system (10, 44, 46, 50, 52) acquires magnetic resonance imaging data for each slice using the adjusted per-slice radio frequency excitation for that slice. A reconstruction processor (58) reconstructs the acquired magnetic resonance imaging data into a reconstructed image representation.
摘要翻译：使用布置成在感兴趣区域中产生B1磁场的射频线圈（40）来执行成像对象（16）的感兴趣区域的多层磁共振成像。一个或多个处理器（44,82,88,110）确定代表在片段的选定区域上的B1字段的每个片段的B1字段值，以考虑BI字段上的对象影响，并且确定每个对于每个切片调整切片的B1字段值到选定值的-Sslice射频激励。磁共振成像系统（10,44,46,50,52）使用针对该切片的调节的每切片射频激励获取每个切片的磁共振成像数据。重建处理器（58）将所获取的磁共振成像数据重建为重建图像表示。

3. 发明申请

WO2008104894A2 SINUSOIDALLY RESONANT RADIO FREQUENCY VOLUME COILS FOR HIGH FIELD MAGNETIC RESONANCE APPLICATIONS 审中-公开
标题翻译：用于高场磁共振应用的SINUSOIDALLY谐振无线电频率线圈
公开(公告)号：WO2008104894A2
公开(公告)日：2008-09-04
申请号：PCT/IB2008/050324
申请日：2008-01-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D.
发明人： ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D.
IPC分类号： G01R33/34 , G01R33/36 , G01R33/422
CPC分类号： G01R33/34046 , G01R33/3635 , G01R33/422
摘要： A radio frequency coil assembly includes an annular conductor (20, 22, 120) configured to support a sinusoidal electrical current distribution at a magnetic resonance frequency, and a radio frequency shield (30, 32, 34, 52, 60, 61, 130) shielding the annular conductor in at least one direction, the radio frequency shield including at least one of (i) a cylindrical shield portion (30, 60, 61, 130) surrounding a perimeter of the annular conductor, and (ii) a planar shield portion (32, 34, 52) arranged generally parallel with the annular conductor. In a magnetic resonance scanner embodiment, a magnet (10) generates a static magnetic field (B 0 ), a magnetic field gradient system (14) is configured to superimpose selected magnetic field gradients on the static magnetic field, and said radio frequency coil assembly is arranged with the annular conductor generally transverse to the static magnetic field (B o ).
摘要翻译：射频线圈组件包括被配置为支持磁共振频率的正弦电流分布的环形导体（20,22，120）和射频屏蔽（30,32,34,52,60,61,130）在至少一个方向上屏蔽环形导体，射频屏蔽包括以下至少一个：（i）围绕环形导体的周边的圆柱形屏蔽部分（30,60,61,130），和（ii）平面屏蔽大体平行于环形导体布置的部分（32,34,52）。在磁共振扫描器实施例中，磁体（10）产生静磁场（B SUB），磁场梯度系统（14）被配置为将选定的磁场梯度叠加在静磁场，并且所述射频线圈组件布置成与环形导体大致横向于静磁场（B SUB）。

4. 发明申请

WO2006120588A1 ELECTROMAGNETIC SHIELDING FOR HIGH FIELD MRI COILS 审中-公开
标题翻译：高磁场线圈电磁屏蔽
公开(公告)号：WO2006120588A1
公开(公告)日：2006-11-16
申请号：PCT/IB2006/051212
申请日：2006-04-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , LEUSSLER, Christoph, G. , LUEDEKE, Kai-michael , MORICH, Michael, A. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
发明人： LEUSSLER, Christoph, G. , LUEDEKE, Kai-michael , MORICH, Michael, A. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
IPC分类号： G01R33/422
CPC分类号： G01R33/422 , G01R33/3628
摘要： A radio frequency coil for magnetic resonance imaging includes an active coil member (70, 70 1 , 170, 270) that defines an imaging volume. The active coil member has a first open end (74) with a first cross-sectional dimension (dactive). A shield coil member (72, 72 1 , 72 2 , 72 3 , 72 4 , 72 5 , 172, 172 2 , 272) substantially surrounds the active coil member. The shield coil member has a constricted open end (88) arranged proximate to the first open end of the active coil member with a constricted cross-sectional dimension (dconst) that is less than the cross-sectional dimension (dShieid) of the shield coil member. In some embodiments, the radio frequency coil further includes an outer shield coil member (100) that is substantially larger than the shield coil member (72, 72 1 , 72 2 , 72 3 , 72 4 , 72 5 , 172, 172 2 , 272), and surrounds both the active coil member and the shield coil member.
摘要翻译：用于磁共振成像的射频线圈包括限定成像体积的有源线圈构件（70,70A，170,270）。有源线圈构件具有第一横截面尺寸（dactive）的第一开口端（74）。屏蔽线圈构件（72,72，...，72，72，72，72，SUB）大致围绕有源线圈构件。屏蔽线圈构件具有靠近有源线圈构件的第一开口端布置的收缩的开口端（88），其缩小的横截面尺寸（dconst）小于屏蔽线圈的横截面尺寸（dShid）会员。在一些实施例中，射频线圈还包括外屏蔽线圈构件（100），该外屏蔽线圈构件（100）基本上大于屏蔽线圈构件（72,72，...，72） 72 3，72 4，72 5，172 172 172，272），并且包围活性物质线圈构件和屏蔽线圈构件。

5. 发明申请

WO2008104895A1 DOUBLY RESONANT HIGH FIELD RADIO FREQUENCY SURFACE COILS FOR MAGNETIC RESONANCE 审中-公开
标题翻译：双磁共振高频无线电频率磁场线圈
公开(公告)号：WO2008104895A1
公开(公告)日：2008-09-04
申请号：PCT/IB2008/050328
申请日：2008-01-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D.
发明人： ZHAI, Zhiyong , MORICH, Michael, A. , DEMEESTER, Gordon, D.
IPC分类号： G01R33/341 , G01R33/36 , G01R33/422
CPC分类号： G01R33/3635 , G01R33/34007 , G01R33/341 , G01R33/3678
摘要： A radio frequency coil comprises an annular conductor or parallel annular conductors (22, 22c, 22d) configured to support: (i) a uniform electrical current distribution generating a first B 1 field (B 1,uniform ) at a first magnetic resonance frequency directed out of a plane of the annular conductor or conductors; and (ii) a sinusoidal electrical current distribution generating a second B 1 field (B 1,sine ) at a second magnetic resonance frequency directed parallel with the plane of the annular conductor or conductors. A magnetic resonance scanner comprises: a magnet (10) generating a static magnetic field (B 0 ); a magnetic field gradient system (14) configured to superimpose selected magnetic field gradients on the static magnetic field; and said radio frequency coil including said annular conductor or parallel annular conductors (22, 22c, 22d).
摘要翻译：射频线圈包括环形导体或平行环形导体（22,22c，22d），其被配置为支持：（i）均匀的电流分布，其产生第一B 1场（B 1），均匀的），以指向环形导体或导体的平面的第一磁共振频率; 和（ii）在与环形导体的平面平行的第二磁共振频率处产生产生第二B 1场（B 1，正弦）的正弦电流分布或导体。磁共振扫描器包括：产生静磁场（B SUB）的磁体（10）; 磁场梯度系统（14），被配置为将选定的磁场梯度叠加在静磁场上; 并且所述射频线圈包括所述环形导体或平行环形导体（22,22c，22d）。

6. 发明申请

WO2005050239A1 RF COIL SYSTEM FOR SUPER HIGH FIELD (SHF) MRI 审中-公开
标题翻译：用于超高频（SHF）MRI的RF线圈系统
公开(公告)号：WO2005050239A1
公开(公告)日：2005-06-02
申请号：PCT/IB2004/052291
申请日：2004-11-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , LEUSSLER, Christoph, G. , FINDEKLEE, Christian , MORICH, Michael, A. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
发明人： LEUSSLER, Christoph, G. , FINDEKLEE, Christian , MORICH, Michael, A. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
IPC分类号： G01R33/422
CPC分类号： G01R33/3415 , G01R33/34046 , G01R33/34076 , G01R33/345 , G01R33/3453 , G01R33/3635 , G01R33/3642 , G01R33/365 , G01R33/3678 , G01R33/422 , G01R33/5659
摘要： A radio frequency coil system (38) for magnetic resonance imaging includes a plurality of parallel spaced apart rungs (60) which each includes rung capacitors (68). An end cap (64) is disposed at a closed end (66) of the coil system (38). An RF shield (62) is connected to the end cap (64) and surrounds the rungs (60), extending in a direction substantially parallel to rungs (60). The RF coil system (38) may be used as birdcage, TEM, hybrid, combination birdcage and TEM, or other.
摘要翻译：一种用于磁共振成像的射频线圈系统（38）包括多个平行隔开的梯级（60），每个梯级包括梯级电容器（68）。端盖（64）设置在线圈系统（38）的封闭端（66）处。 RF屏蔽（62）连接到端盖（64）并且围绕梯级（60）沿着基本平行于梯级（60）的方向延伸。 RF线圈系统（38）可以用作鸟笼，TEM，混合，组合鸟笼和TEM等。

7. 发明申请

WO2007124245A1 MAGNETIC RESONANCE WITH TIME SEQUENTIAL SPIN EXCITATION 审中-公开
标题翻译：具有时间顺序旋转激励的磁共振
公开(公告)号：WO2007124245A1
公开(公告)日：2007-11-01
申请号：PCT/US2007/065841
申请日：2007-04-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , ZHAI, Zhiyong , DEMEESTER, Gordon, D. , MORICH, Michael, A. , HARVEY, Paul, R.
发明人： ZHAI, Zhiyong , DEMEESTER, Gordon, D. , MORICH, Michael, A. , HARVEY, Paul, R.
IPC分类号： G01R33/32
CPC分类号： G01R33/5659 , G01R33/246 , G01R33/3415
摘要： In a magnetic resonance scanner, a main magnet (20, 22) generates a static magnetic field at least in an examination region. A magnetic field gradient system (30, 54) selectively superimposes magnetic field gradients on the static magnetic field at least in the examination region. A magnetic resonance excitation system (36, 36') includes at least one radio frequency coil (30, 301, 302, 303) arranged to inject radio frequency B1 fields into the examination region and at least two radio frequency amplifiers (38, 40, 40') coupled with different input ports of the at least one radio frequency coil. A controller (66, 70) controls the magnetic resonance excitation system to produce a time varying spatial B1 field distribution in a subject (16) in the examination region that time integrates to define a spatial tip angle distribution in the subject having reduced spatial non uniformity.
摘要翻译：在磁共振扫描器中，主磁体（20,22）至少在检查区域中产生静磁场。磁场梯度系统（30,54）至少在检查区域中选择性地将磁场梯度叠加在静磁场上。磁共振激励系统（36,36'）包括至少一个射频线圈（30,301,302,303），其布置成将射频B1场注入到检查区域中，并且至少两个射频放大器（38,40,303） 40'）耦合到所述至少一个射频线圈的不同输入端口。控制器（66,70）控制磁共振激励系统以在检查区域中的对象（16）中产生时变空间B1场分布，该时间积分以在被摄体中定义具有降低的空间非均匀性的空间尖角分布。

8. 发明申请

WO2005111646A1 SHORT ELEMENT TEM COIL FOR ULTRA-HIGH FIELD MR 审中-公开
标题翻译：用于超高频场的短元件TEM线圈
公开(公告)号：WO2005111646A1
公开(公告)日：2005-11-24
申请号：PCT/IB2005/051554
申请日：2005-05-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , MORICH, Michael, A. , DEMEESTER, Gordon, D. , ZHAI, Zhiyong , HARVEY, Paul, R.
发明人： MORICH, Michael, A. , DEMEESTER, Gordon, D. , ZHAI, Zhiyong , HARVEY, Paul, R.
IPC分类号： G01R33/34
CPC分类号： G01R33/34046 , G01R33/3453
摘要： A transverse electromagnetic (TEM) coil is provided. The TEM coil includes an electrically conductive shell and an end plate disposed at a first end of the shell. The TEM coil also includes a plurality of TEM elements disposed within the shell, the plurality of TEM elements being shorter than the shell.
摘要翻译：提供横向电磁（TEM）线圈。 TEM线圈包括导电壳体和设置在壳体的第一端处的端板。 TEM线圈还包括设置在壳体内的多个TEM元件，多个TEM元件比壳短。

9. 发明申请

WO2005001502A1 CONTROL OF SPECIFIC ABSORPTION RATE (ASR) IN MRI 审中-公开
标题翻译： MRI中特异性吸收率（ASR）的控制
公开(公告)号：WO2005001502A1
公开(公告)日：2005-01-06
申请号：PCT/IB2004/002175
申请日：2004-06-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , MORICH, Michael, A. , HARVEY, Paul, R. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
发明人： MORICH, Michael, A. , HARVEY, Paul, R. , ZHAI, Zhiyong , DEMEESTER, Gordon, D.
IPC分类号： G01R33/58
CPC分类号： G01R33/28 , A61B5/055 , G01R33/288 , G01R33/583
摘要： An MRI apparatus is provided. The apparatus includes a main magnet for generating a main magnetic field in an examination region, a plurality of gradient coils for generating gradient fields within the main field, an RF transmit coil for transmitting RF signals into the examination region and exciting magnetic resonance in a subject disposed therein in accordance with a plurality of imaging parameters, the transmitted RF signals having a SAR associated therewith, and a SAR processor for maintaining the transmitted RF signals below a prescribed SAR level.
摘要翻译：提供MRI装置。该装置包括用于在检查区域中产生主磁场的主磁体，用于在主场内产生梯度场的多个梯度线圈，用于将RF信号发送到检查区域中的激励磁共振的RF发射线圈根据多个成像参数设置在其中，所发送的RF信号具有与其相关联的SAR，以及SAR处理器，用于将发射的RF信号保持在规定的SAR水平以下。

10. 发明申请

WO2012004728A2 ROUTER AND COIL ARRAY FOR ULTRA HIGH FIELD MRI 审中-公开
标题翻译：用于超声场MRI的路由器和线圈阵列
公开(公告)号：WO2012004728A2
公开(公告)日：2012-01-12
申请号：PCT/IB2011/052950
申请日：2011-07-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , MORICH, Michael, A. , ZHAI, Zhiyong , NIEMAN, Kevin, M. , WONG, Eddy, Y. P. , MALIK, Nabeel
发明人： MORICH, Michael, A. , ZHAI, Zhiyong , NIEMAN, Kevin, M. , WONG, Eddy, Y. P. , MALIK, Nabeel
IPC分类号： G01R33/3415
CPC分类号： G01R33/3642 , G01R33/3415 , G01R33/3607 , G01R33/3621 , G01R33/3678 , G01R33/5612
摘要： A router (60), for use with magnetic resonance systems (10), selectively routes unique excitation signals, generated by a multi-channel radio-frequency (RF) amplifier,over transmission lines (Tx) to any one of a plurality of connection panels (66) which each accepts at least one RF coil assembly having multiple coil elements (20). Each connection panel (66) includes transceiver ports (68) for connecting at least one conductor (22,24) of the coil elements(20) to a corresponding transceiver channel (T/R). The router (60) selectively routes magnetic resonance signals received by the conductors (22,24) from the transceiver channels (T/R) to a multi-channel RF receiver (41).
摘要翻译：与磁共振系统（10）一起使用的路由器（60）选择性地将由多通道射频（RF）放大器产生的唯一激励信号通过传输线（Tx）路由到多个连接中的任何一个每个接收至少一个具有多个线圈元件（20）的RF线圈组件的面板（66）。每个连接面板（66）包括用于将线圈元件（20）的至少一个导体（22,24）连接到对应的收发器通道（T / R）的收发器端口（68）。路由器（60）选择性地将由导体（22,24）接收的磁共振信号从收发器通道（T / R）传送到多声道RF接收器（41）。

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