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公开(公告)号：US20100219347A1
公开(公告)日：2010-09-02
申请号：US12670256
申请日：2008-06-23
CPC分类号： G01T1/1603
摘要： An imaging system includes positron emission tomography (PET) detectors (30) shrouded by broadband galvanic isolation (99) and coincidence detection electronics (50, 50ob), or other radiation detectors. A magnetic resonance scanner includes a main magnet (12, 14) and magnetic field gradient assembly (20, 20′, 22, 24) configured to acquire imaging data from a magnetic resonance examination region at least partially overlapping the examination region surrounded by the PET detectors. A radio frequency coil (80, 100) has plurality of conductors (66, 166) and a radio frequency screen (88, 188, 188EB, 188F) substantially surrounding the conductors to shield the coil at the magnetic resonance frequency. The radiation detectors are outside of the radio frequency screen. Magnetic resonance-compatible radiation collimators or shielding (60, 62) containing an electrically non-conductive and non-ferromagnetic heavy atom oxide material are disposed with the radiation detectors.
摘要翻译： 一种成像系统包括由宽带电流隔离（99）和重合检测电路（50,50ob）或其他辐射检测器覆盖的正电子发射断层摄影（PET）检测器（30）。 磁共振扫描仪包括主磁体（12,14）和磁场梯度组件（20,20'，22,24），其被配置为从至少部分地与由PET包围的检查区域重叠的磁共振检查区域获取成像数据 探测器 射频线圈（80,100）具有基本上围绕导体以屏蔽线圈的磁共振频率的多个导体（66,166）和射频屏（88,188,188EB，188F）。 辐射探测器在射频屏幕之外。 磁辐射准直仪或包含非导电和非铁磁重原子氧化物材料的屏蔽（60,62）与辐射探测器一起设置。
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公开(公告)号：US08378677B2
公开(公告)日：2013-02-19
申请号：US12667573
申请日：2008-06-23
申请人： Michael A. Morich , Gordon D. Demeester , Jerome J. Griesmer , Torsten J. Solf , Volkmar Schulz , Bjoern Weissler
发明人： Michael A. Morich , Gordon D. Demeester , Jerome J. Griesmer , Torsten J. Solf , Volkmar Schulz , Bjoern Weissler
IPC分类号： G01V3/00
CPC分类号： G01T1/1603 , G01R33/3806 , G01R33/3856 , G01R33/481
摘要： In a hybrid PET-MR system, PET detector elements (30) are added in the bore (14), in close proximity to the gradient coils (16). Fluid coolant is supplied to transfer heat from the PET detector elements (30). Thermal insulation (80) insulates the fluid coolant and the PET detector elements (30) from the gradient coils (16). In some embodiments, a first coolant path (90) is in thermal communication with the electronics, a second coolant path (92) is in thermal communication with the light detectors, and a thermal barrier (94, 96) is arranged between the first and second coolant paths such that the first and second coolant paths can be at different temperatures (Te, Td). In some embodiments a sealed heat pipe (110) is in thermal communication with a heat sink such that working fluid in the heat pipe undergoes vaporization/condensation cycling to transfer heat from the detector elements to the heat sink.
摘要翻译： 在混合PET-MR系统中，将PET检测器元件（30）添加到孔（14）中，靠近梯度线圈（16）。 供应流体冷却剂以从PET检测器元件（30）传递热量。 绝热（80）使流体冷却剂和PET检测器元件（30）与梯度线圈（16）绝缘。 在一些实施例中，第一冷却剂路径（90）与电子设备热连通，第二冷却剂路径（92）与光检测器热连通，并且热障（94,96）布置在第一和第 第二冷却剂路径使得第一和第二冷却剂路径可处于不同的温度（Te，Td）。 在一些实施例中，密封的热管（110）与散热器热连通，使得热管中的工作流体经历蒸发/冷凝循环以将热量从检测器元件传递到散热器。
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公开(公告)号：US20100033186A1
公开(公告)日：2010-02-11
申请号：US12531979
申请日：2008-01-16
IPC分类号： G01R33/44
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/055 , G01R33/385 , G01R33/3875 , G01R33/421 , G01R33/4215 , G01R33/4808
摘要： A generally cylindrical set of coil windings (10, 30, 80) includes primary coil windings (12, 32, 82) and shield coil windings (14, 34, 84) at a larger radial position than the primary coil windings, and an arcuate or annular central gap (16, 36, 86) that is free of coil windings, has an axial extent (W) of at least ten centimeters, and spans at least a 180° angular interval. Connecting conductors (24, 44, 94) disposed at each edge of the central gap electrically connect selected primary and secondary coil windings. In a scanner setting, a main magnet (62, 64) is disposed outside of the generally cylindrical set of coil windings. In a hybrid scanner setting, an annular ring of positron emission tomography (PET) detectors (66) is disposed in the central gap of the generally cylindrical set of coil windings.
摘要翻译： 一般为圆柱形的线圈绕组（10,30,80）包括在比初级线圈绕组更大的径向位置处的初级线圈绕组（12,32,82）和屏蔽线圈绕组（14,34,84），以及弧形 或没有线圈绕组的环形中心间隙（16,36,86）具有至少十厘米的轴向范围（W）并跨越至少180°的角度间隔。 设置在中心间隙的每个边缘处的连接导体（24,44,94）电连接所选择的初级和次级线圈绕组。 在扫描器设置中，主磁体（62,64）设置在大致圆柱形的线圈绕组的外侧。 在混合扫描器设置中，正电子发射断层摄影（PET）检测器（66）的环形环设置在大致圆柱形的线圈绕组组的中心间隙中。
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公开(公告)号：US08604795B2
公开(公告)日：2013-12-10
申请号：US13489491
申请日：2012-06-06
IPC分类号： G01V3/00
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/055 , G01R33/385 , G01R33/3875 , G01R33/421 , G01R33/4215 , G01R33/4808
摘要： A generally cylindrical set of coil windings includes primary coil windings and shield coil windings at a larger radial position than the primary coil windings, and an arcuate or annular central gap that is free of coil windings, has an axial extent of at least ten centimeters, and spans at least a 180° angular interval. Connecting conductors disposed at each edge of the central gap electrically connect selected primary and secondary coil windings. In a scanner setting, a main magnet is disposed outside of the generally cylindrical set of coil windings. In a hybrid scanner setting, an annular ring of positron emission tomography (PET) detectors is disposed in the central gap of the generally cylindrical set of coil windings.
摘要翻译： 一般为圆柱形的线圈绕组包括在初级线圈绕组较大的径向位置处的初级线圈绕组和屏蔽线圈绕组，并且没有线圈绕组的弓形或环形中心间隙具有至少十厘米的轴向范围， 并且跨越至少180°的角度间隔。 设置在中心间隙的每个边缘处的连接导体电连接所选择的初级和次级线圈绕组。 在扫描仪设置中，主磁体设置在大致圆柱形的线圈绕组的外侧。 在混合扫描器设置中，正电子发射断层摄影（PET）检测器的环形环设置在大致圆柱形的线圈绕组组的中心间隙中。
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公开(公告)号：US08334697B2
公开(公告)日：2012-12-18
申请号：US12531979
申请日：2008-01-16
IPC分类号： G01V3/00
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/055 , G01R33/385 , G01R33/3875 , G01R33/421 , G01R33/4215 , G01R33/4808
摘要： A generally cylindrical set of coil windings (10, 30, 80) includes primary coil windings (12, 32, 82) and shield coil windings (14, 34, 84) at a larger radial position than the primary coil windings, and an arcuate or annular central gap (16, 36, 86) that is free of coil windings, has an axial extent (W) of at least ten centimeters, and spans at least a 180° angular interval. Connecting conductors (24, 44, 94) disposed at each edge of the central gap electrically connect selected primary and secondary coil windings. In a scanner setting, a main magnet (62, 64) is disposed outside of the generally cylindrical set of coil windings. In a hybrid scanner setting, an annular ring of positron emission tomography (PET) detectors (66) is disposed in the central gap of the generally cylindrical set of coil windings.
摘要翻译： 一般为圆柱形的线圈绕组（10,30,80）包括在比初级线圈绕组更大的径向位置处的初级线圈绕组（12,32,82）和屏蔽线圈绕组（14,34,84），以及弧形 或没有线圈绕组的环形中心间隙（16,36,86）具有至少十厘米的轴向范围（W）并且跨越至少180°的角度间隔。 设置在中心间隙的每个边缘处的连接导体（24,44,94）电连接所选择的初级和次级线圈绕组。 在扫描器设置中，主磁体（62,64）设置在大致圆柱形的线圈绕组的外侧。 在混合扫描器设置中，正电子发射断层摄影（PET）检测器（66）的环形环设置在大致圆柱形的线圈绕组组的中心间隙中。
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6.发明授权公开(公告)号：US08421462B2
公开(公告)日：2013-04-16
申请号：US12528536
申请日：2008-01-30
IPC分类号： G01V3/00
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 (B0), 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 (B0).
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（B0），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，而所述射频线圈组件 与环形导体布置成大体横向于静磁场（B0）。
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7.发明申请SINUSOIDALLY RESONANT RADIO FREQUENCY VOLUME COILS FOR HIGH FIELD MAGNETIC RESONANCE APPLICATIONS 失效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：US20100117642A1
公开(公告)日：2010-05-13
申请号：US12528536
申请日：2008-01-30
IPC分类号： G01R33/44
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 (B0), 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 (B0).
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（B0），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，而所述射频线圈组件 与环形导体布置成大体横向于静磁场（B0）。
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公开(公告)号：US20100290683A1
公开(公告)日：2010-11-18
申请号：US12740358
申请日：2008-10-29
IPC分类号： G06K9/00
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/0402 , A61B5/055 , A61B5/08 , A61B5/7289 , A61B5/7292 , A61B6/037 , A61B6/5247 , A61B6/5288 , A61B6/541 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： In preparation for acquiring PET image data, subject motion models are built based on physiologic signal monitoring and MR data is collected and used for improved PET imaging. The physiologic signal monitoring is also used during PET imaging, and the acquired MR data is used for prospective or retrospective gating of the PET image acquisition, or in the PET reconstruction for improved correction/imaging.
摘要翻译： 为准备获取PET图像数据，基于生理信号监测建立主题运动模型，收集MR数据并用于改进PET成像。 生物信号监测也用于PET成像，采集的MR数据用于PET图像采集的前瞻性或回顾性门控，或PET重建中用于改善校正/成像。
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公开(公告)号：US07508210B2
公开(公告)日：2009-03-24
申请号：US11569074
申请日：2005-05-11
IPC分类号： G01V3/00
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。
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10.发明申请公开(公告)号：US20100026303A1
公开(公告)日：2010-02-04
申请号：US12528541
申请日：2008-01-30
IPC分类号： G01R33/44
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 B1 field (B1,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 B1 field (B1,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 (B0); 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，其以第一磁共振频率产生第一B1场（B1，均匀） 环形导体或导体的平面; 和（ii）以与环形导体或导体的平面平行的第二磁共振频率产生第二B1场（B1，正弦）的正弦电流分布。 磁共振扫描器包括：产生静磁场（B0）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）。
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