-
公开(公告)号：US20100102813A1
公开(公告)日：2010-04-29
申请号：US12521907
申请日：2008-01-08
申请人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
发明人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
CPC分类号： A61B5/0035 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/481 , G01T1/1603
摘要： In a combined system, a magnetic resonance (MR) scanner includes a magnet (10, 110) configured to generate a static magnetic field (B0) at least in a MR examination region (12) from which MR data are acquired. Radiation detectors (40, 41, 140) are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region (70). The radiation 5 detectors include electron multiplier elements (60, 160) having a direction of electron acceleration (ae) arranged substantially parallel or anti-parallel with the static magnetic field (B0). In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces (14, 15) disposed on opposite sides of a magnetic 10 resonance examination region, and the radiation detectors include first and second arrays (40, 41) of radiation detectors disposed with the first and second spaced apart magnet pole pieces.
摘要翻译： 在组合系统中，磁共振（MR）扫描器包括至少在从其获取MR数据的MR检查区域（12）中产生静态磁场（B0）的磁体（10,110）。 辐射检测器（40,41,140）被配置为检测由正电子发射断层摄影（PET）检查区域（70）中的正电子 - 电子湮灭事件产生的伽马射线。 辐射5检测器包括具有与静态磁场（B0）基本平行或反平行排列的电子加速度（ae）方向的电子倍增器元件（60,160）。 在一些实施例中，磁体是具有设置在磁性10共振检查区域的相对侧上的第一和第二间隔开的磁极片（14,15）的开放磁体，并且辐射检测器包括第一和第二阵列（40,41） 的辐射探测器，其布置有第一和第二间隔开的磁极片。
-
公开(公告)号：US08188736B2
公开(公告)日：2012-05-29
申请号：US12521907
申请日：2008-01-08
申请人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
发明人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
IPC分类号： G01V3/00
CPC分类号： A61B5/0035 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/481 , G01T1/1603
摘要： In a combined system, a magnetic resonance (MR) scanner includes a magnet (10, 110) configured to generate a static magnetic field (B0) at least in a MR examination region (12) from which MR data are acquired. Radiation detectors (40, 41, 140) are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region (70). The radiation 5 detectors include electron multiplier elements (60, 160) having a direction of electron acceleration (ae) arranged substantially parallel or anti-parallel with the static magnetic field (B0). In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces (14, 15) disposed on opposite sides of a magnetic 10 resonance examination region, and the radiation detectors include first and second arrays (40, 41) of radiation detectors disposed with the first and second spaced apart magnet pole pieces.
摘要翻译： 在组合系统中，磁共振（MR）扫描器包括至少在从其获取MR数据的MR检查区域（12）中产生静态磁场（B0）的磁体（10,110）。 辐射检测器（40,41,140）被配置为检测由正电子发射断层摄影（PET）检查区域（70）中的正电子 - 电子湮灭事件产生的伽马射线。 辐射5检测器包括具有与静态磁场（B0）基本平行或反平行排列的电子加速度（ae）方向的电子倍增器元件（60,160）。 在一些实施例中，磁体是具有设置在磁性10共振检查区域的相对侧上的第一和第二间隔开的磁极片（14,15）的开放磁体，并且辐射检测器包括第一和第二阵列（40,41） 的辐射探测器，其布置有第一和第二间隔开的磁极片。
-
公开(公告)号：US08723521B2
公开(公告)日：2014-05-13
申请号：US13950811
申请日：2013-07-25
申请人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
发明人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
IPC分类号： G01V3/00
CPC分类号： A61B5/0035 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/481 , G01T1/1603
摘要： In a combined system, a magnetic resonance (MR) scanner includes a magnet configured to generate a static magnetic field at least in a MR examination region from which MR data are acquired. Radiation detectors are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region. The radiation detectors include electron multiplier elements having a direction of electron acceleration arranged substantially parallel or anti-parallel with the static magnetic field. In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces disposed on opposite sides of a magnetic resonance examination region, and the radiation detectors include first and second arrays of radiation detectors disposed with the first and second spaced apart magnet pole pieces.
摘要翻译： 在组合系统中，磁共振（MR）扫描器包括配置成至少在从其获取MR数据的MR检查区域中产生静态磁场的磁体。 辐射检测器被配置为检测在正电子发射断层摄影（PET）检查区域中由正电子 - 电子湮灭事件产生的γ射线。 辐射检测器包括电子加速器元件，其具有基本上平行于或与静磁场平行的电子加速度方向。 在一些实施例中，磁体是具有设置在磁共振检查区域的相对侧上的第一和第二间隔开的磁极片的开放磁体，并且辐射检测器包括第一和第二辐射检测器阵列，其布置有第一和第二间隔开 磁极片。
-
公开(公告)号：US08519710B2
公开(公告)日：2013-08-27
申请号：US13456470
申请日：2012-04-26
申请人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
发明人： Volkmar Schulz , Torsten Solf , Johan Overweg , Andreas Thon
IPC分类号： G01V3/00
CPC分类号： A61B5/0035 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/481 , G01T1/1603
摘要： In a combined system, a magnetic resonance (MR) scanner includes a magnet configured to generate a static magnetic field at least in a MR examination region from which MR data are acquired. Radiation detectors are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region. The radiation detectors include electron multiplier elements having a direction of electron acceleration arranged substantially parallel or anti-parallel with the static magnetic field. In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces disposed on opposite sides of a magnetic resonance examination region, and the radiation detectors include first and second arrays of radiation detectors disposed with the first and second spaced apart magnet pole pieces.
摘要翻译： 在组合系统中，磁共振（MR）扫描器包括配置成至少在从其获取MR数据的MR检查区域中产生静态磁场的磁体。 辐射检测器被配置为检测在正电子发射断层摄影（PET）检查区域中由正电子 - 电子湮灭事件产生的γ射线。 辐射检测器包括电子加速器元件，其具有基本上平行于或与静磁场平行的电子加速度方向。 在一些实施例中，磁体是具有设置在磁共振检查区域的相对侧上的第一和第二间隔开的磁极片的开放磁体，并且辐射检测器包括第一和第二辐射检测器阵列，其布置有第一和第二间隔开的 磁极片。
-
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。
-
公开(公告)号：US08467848B2
公开(公告)日：2013-06-18
申请号：US13147205
申请日：2010-01-12
申请人： Torsten Solf , Volkmar Schulz
发明人： Torsten Solf , Volkmar Schulz
IPC分类号： A61B5/05
CPC分类号： G01R33/481 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/345 , G01R33/3453 , G01R33/3685 , G01R33/385 , G01R33/422
摘要： A nuclear detector module (24) is housed within an electrically conductive hollow resonator element (18) that is to be used in a combined MR and nuclear imaging unit. The resonator element has an inner face (26) which is radiation transparent facing an examination region (14) and a plurality of other faces (28) disposed facing and spaced from an RF screen (22).
摘要翻译： 核检测器模块（24）容纳在用于组合MR和核成像单元的导电中空谐振元件（18）内。 谐振器元件具有面向检查区域（14）的辐射透明的内表面（26）和面对RF屏幕（22）并与之隔开的多个其它面（28）。
-
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。
-
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。
-
公开(公告)号：US20110288401A1
公开(公告)日：2011-11-24
申请号：US13147205
申请日：2010-01-12
申请人： Torsten Solf , Volkmar Schulz
发明人： Torsten Solf , Volkmar Schulz
IPC分类号： A61B5/055
CPC分类号： G01R33/481 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/345 , G01R33/3453 , G01R33/3685 , G01R33/385 , G01R33/422
摘要： A nuclear detector module (24) is housed within an electrically conductive hollow resonator element (18) that is to be used in a combined MR and nuclear imaging unit. The resonator element has an inner face (26) which is radiation transparent facing an examination region (14) and a plurality of other faces (28) disposed facing and spaced from an RF screen (22).
摘要翻译： 核检测器模块（24）容纳在用于组合MR和核成像单元的导电中空谐振元件（18）内。 谐振器元件具有面向检查区域（14）的辐射透明的内表面（26）和面对RF屏幕（22）并与之隔开的多个其它面（28）。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
93 条记录 (耗时 0.034 秒)
