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    • 1. 发明申请
    • Combined positron emission tomography and magnetic resonance tomography unit
    • 组合正电子发射断层扫描和磁共振断层扫描单元
    • US20060250133A1
    • 2006-11-09
    • US11395251
    • 2006-04-03
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltWolfgang RenzSebastian SchmidtMarkus Vester
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltWolfgang RenzSebastian SchmidtMarkus Vester
    • G06K9/00
    • G01R33/481G01T1/1603
    • A positron emission tomography unit (PET), having a unit part assigned to an examination space and a first evaluation unit, is combined with a magnetic resonance tomography unit (MRT). The unit part of the PRT includes at least two gamma ray detector units with in each case an assigned electronics unit. The MRT includes a second evaluation unit, a gradient coil system and a high frequency antenna device formed as a stripline antenna device having at least two conductors. The high frequency antenna device is arranged nearer to the examination space than the gradient coil system with a high frequency shield between the gradient coil system and the high frequency antenna device. Each conductor of the stripline antenna device respectively includes a gamma ray detector unit with an assigned electronics unit. The conductors of the stripline antenna device are configured for the respective gamma ray detector units and their assigned electronics units as shielding covers that are caused by the high frequency antenna device and are opaque to high frequency radiation. An examination object in the examination space can be imaged by the combined positron emission tomography and magnetic resonance tomography unit.
    • 将具有分配给检查空间的单位部分和第一评估单元的正电子发射断层摄影单元(PET)与磁共振断层摄影单元(MRT)组合。 PRT的单位部分包括至少两个伽马射线检测器单元,在每种情况下都是分配的电子单元。 MRT包括第二评估单元,梯度线圈系统和形成为具有至少两个导体的带状线天线装置的高频天线装置。 高频天线装置布置成比梯度线圈系统和高频天线装置之间具有高频屏蔽的梯度线圈系统更靠近检查空间。 带状线天线装置的每个导体分别包括具有分配的电子单元的伽马射线检测器单元。 带状线天线装置的导体被配置用于相应的伽马射线检测器单元及其分配的电子单元作为由高频天线装置引起并且对高频辐射不透明的屏蔽盖。 检查空间中的检查对象可以通过组合的正电子发射断层摄影和磁共振断层摄影单元成像。
    • 4. 发明授权
    • Method for recording and evaluating PET data recorded at the same time as magnetic resonance data using a combined magnetic resonance/PET apparatus, and a combined magnetic resonance/PET apparatus
    • 使用组合磁共振/ PET装置记录和评价与磁共振数据同时记录的PET数据的方法,以及组合磁共振/ PET装置
    • US08805474B2
    • 2014-08-12
    • US13008956
    • 2011-01-19
    • Ralf LadebeckSebastian Schmidt
    • Ralf LadebeckSebastian Schmidt
    • A61B5/05
    • A61B5/055A61B6/037A61B6/4417A61B6/5247G01R33/481
    • A method is disclosed for recording and evaluating PET data recorded at the same time as magnetic resonance data using a combined magnetic resonance/PET apparatus, wherein in the context of a pulse sequence for recording the magnetic resonance data a magnetic resonance recording facility, including at least one gradient coil and at least one high-frequency coil, is activated. In at least one embodiment, the method includes recording the PET data and assigning the recorded PET data after the recording time point to at least two data groups assigned to a predetermined operating state of the magnetic resonance recording facility; for each data group, determining a measure of similarity of the PET data contained therein to the PET data as a whole and/or to PET data of at least one further data group, whereby if the measure of similarity is below a threshold value, the PET data of the data group is rejected and/or further evaluated separately.
    • 公开了一种用于记录和评估使用组合磁共振/ PET装置的磁共振数据同时记录的PET数据的方法,其中在用于记录磁共振数据的脉冲序列的上下文中,磁共振记录设备包括在 至少一个梯度线圈和至少一个高频线圈被激活。 在至少一个实施例中,该方法包括记录PET数据并将记录时间点之后记录的PET数据分配给分配给磁共振记录设备的预定操作状态的至少两个数据组; 对于每个数据组,确定其中包含的PET数据与PET数据作为整体和/或至少一个另外的数据组的PET数据的相似度的度量,由此如果相似度的测量值低于阈值,则 数据组的PET数据被拒绝和/或进一步评估。
    • 7. 发明授权
    • Method for determining positron emission measurement information in the context of positron emission tomography
    • 在正电子发射断层扫描的背景下确定正电子发射测量信息的方法
    • US07683330B2
    • 2010-03-23
    • US11438209
    • 2006-05-23
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltSebastian SchmidtMarkus Vester
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltSebastian SchmidtMarkus Vester
    • G01T1/166
    • G01T1/2985A61B6/037G01R33/481
    • A method is disclosed for determining positron emission measurement information in the context of positron emission tomography. The method includes carrying out a positron emission measurement, in a body area of a subject to be examined, to record positron emission measurement information with point resolution and determining a time frame of the measurement by, at the same time, generating images of the body area to be examined with a relatively higher time resolution and with point-resolved image data, using a second imaging method. Further, a local shift of points of individual images of the second imaging method is determined, caused by movement processes of the subject to be examined, and as a function thereof, of the positron emission measurement information for at least a part of the measurement period and of the body area to be examined. Finally, the positron emission measurement information is adjusted as a function of the determined shift.
    • 公开了一种用于在正电子发射断层摄影的背景下确定正电子发射测量信息的方法。 该方法包括在待检查对象的身体区域中进行正电子发射测量,以记录具有点分辨率的正电子发射测量信息,并且通过同时生成身体的图像来确定测量的时间范围 使用第二成像方法以相对较高的时间分辨率和点分辨图像数据进行检查的区域。 此外,由第二成像方法的各个图像的点的局部偏移由待检查对象的移动处理确定,并且作为其功能,确定至少部分测量周期的正电子发射测量信息 以及要检查的身体区域。 最后,调整正电子发射测量信息作为确定的位移的函数。
    • 8. 发明申请
    • Mobile combined MRI/PET apparatus
    • 移动联合MRI / PET装置
    • US20090043189A1
    • 2009-02-12
    • US12222209
    • 2008-08-05
    • Ralf LadebeckDiana MartinSebastian Schmidt
    • Ralf LadebeckDiana MartinSebastian Schmidt
    • A61B5/05
    • G01R33/481A61B6/037G01R33/421G01R33/4215G01R33/422G01T1/1603
    • A combined positron emission tomography/magnetic resonance imaging apparatus, in a trailer housing is disclosed, for imaging organs of an examination object in an examination space. In at least one embodiment, the positron emission tomography/magnetic resonance imaging apparatus includes a positron emission tomography apparatus with at least one radiation detector and a magnetic resonance imaging apparatus with at least one main magnetic field coil for generating a main magnetic field, at least one gradient coil for generating a magnetic gradient field, and a radio-frequency antenna device for transmitting excitation pulses and receiving magnetic resonance signals from the examination space, the radiation detector and the at least one gradient coil being arranged coaxially and at substantially the same axial height. In order to create a mobile MRI/PET apparatus which is designed as compactly as possible and, firstly, satisfies the radiation protection requirements for protecting the surroundings of the measurement apparatus to the best possible extent and, secondly, excludes interfering environmental influences on the measurement apparatus, a shielding arrangement with at least one shielding element for attenuating the main magnetic field and the gradient field and also the annihilation radiation outside the trailer housing is provided in at least one embodiment.
    • 公开了一种组合的正电子发射断层摄影/磁共振成像装置,用于在检查空间中成像检查对象的器官。 在至少一个实施例中,正电子发射断层摄影/磁共振成像装置包括具有至少一个辐射检测器和磁共振成像装置的正电子发射断层摄影装置,该装置具有至少一个用于产生主磁场的主磁场线圈,至少 用于产生磁梯度场的一个梯度线圈和用于从检查空间传输激励脉冲和接收磁共振信号的射频天线装置,辐射检测器和至少一个梯度线圈同轴并且基本相同的轴向 高度。 为了创建尽可能紧凑地设计的移动MRI / PET装置,首先满足最大限度地保护测量装置的周围的辐射防护要求,其次,排除对测量的干扰环境影响 在至少一个实施例中提供了一种屏蔽装置,其具有用于衰减主磁场和梯度场的至少一个屏蔽元件以及拖车壳体外部的湮灭辐射。
    • 9. 发明授权
    • Combined positron emission tomography and magnetic resonance tomography unit
    • 组合正电子发射断层扫描和磁共振断层扫描单元
    • US07323874B2
    • 2008-01-29
    • US11395251
    • 2006-04-03
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltWolfgang RenzSebastian SchmidtMarkus Vester
    • Robert KriegRainer KuthRalf LadebeckRalph OppeltWolfgang RenzSebastian SchmidtMarkus Vester
    • G01V3/00
    • G01R33/481G01T1/1603
    • A positron emission tomography unit (PET), having a unit part assigned to an examination space and a first evaluation unit, is combined with a magnetic resonance tomography unit (MRT). The unit part of the PRT includes at least two gamma ray detector units with in each case an assigned electronics unit. The MRT includes a second evaluation unit, a gradient coil system and a high frequency antenna device formed as a stripline antenna device having at least two conductors. The high frequency antenna device is arranged nearer to the examination space than the gradient coil system with a high frequency shield between the gradient coil system and the high frequency antenna device. Each conductor of the stripline antenna device respectively includes a gamma ray detector unit with an assigned electronics unit. The conductors of the stripline antenna device are configured for the respective gamma ray detector units and their assigned electronics units as shielding covers that are caused by the high frequency antenna device and are opaque to high frequency radiation. An examination object in the examination space can be imaged by the combined positron emission tomography and magnetic resonance tomography unit.
    • 将具有分配给检查空间的单位部分和第一评估单元的正电子发射断层摄影单元(PET)与磁共振断层摄影单元(MRT)组合。 PRT的单位部分包括至少两个伽马射线检测器单元,在每种情况下都是分配的电子单元。 MRT包括第二评估单元,梯度线圈系统和形成为具有至少两个导体的带状线天线装置的高频天线装置。 高频天线装置布置成比梯度线圈系统和高频天线装置之间具有高频屏蔽的梯度线圈系统更靠近检查空间。 带状线天线装置的每个导体分别包括具有分配的电子单元的伽马射线检测器单元。 带状线天线装置的导体被配置用于相应的伽马射线检测器单元及其分配的电子单元作为由高频天线装置引起并且对高频辐射不透明的屏蔽盖。 检查空间中的检查对象可以通过组合的正电子发射断层摄影和磁共振断层摄影单元成像。