公开(公告)号：US20130082702A1

公开(公告)日：2013-04-04

申请号：US13628938

申请日：2012-09-27

申请人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK ,  Harald H. QUICK

发明人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK ,  Harald H. QUICK

IPC分类号： G01R33/565 ,  G01R33/34

CPC分类号： G01R33/56563 ,  G01R33/481 ,  G01R33/4835 ,  G01R33/56383

摘要： A method is disclosed for acquiring magnetic resonance (MR) data for a plurality of layers of an object to be examined in a section of a magnetic resonance system having a basic magnetic field, wherein the section is located at the edge of a Field of View of the magnetic resonance system in the first direction. The method includes producing a first gradient field having a non-linearity of its location dependence in such a way that in the section the non-linearity compensates a local inhomogeneity of the basic magnetic field, and then multiple positioning of the object to be examined in a first direction, so the plurality of layers of the object to be examined perpendicular to the first direction successively includes the section. Finally, it includes the acquisition of magnetic resonance data for each of the layers with recording sequences.

摘要翻译： 公开了一种用于在具有基本磁场的磁共振系统的一部分中获取待检查对象的多层的磁共振（MR）数据的方法，其中该部分位于视场边缘 的磁共振系统在第一方向上。 该方法包括以这样的方式产生具有其位置依赖性的非线性的第一梯度场，使得在该截面中非线性补偿基本磁场的局部不均匀性，然后将被检查对象多次定位 第一方向，因此垂直于第一方向的要被检查物体的多层依次包括该部分。 最后，它包括用记录序列获取每个层的磁共振数据。

公开(公告)号：US08338794B2

公开(公告)日：2012-12-25

申请号：US12458367

申请日：2009-07-09

申请人： Ralf Ladebeck

发明人： Ralf Ladebeck

IPC分类号： G01T1/24

CPC分类号： A61B5/055 ,  A61B6/03 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/4488 ,  A61B6/5247

摘要： A detection device with at least one detector and a processing unit for processing signals of the detector is disclosed. In at least one embodiment, the detection device includes at least one cooling unit for cooling the detector and the processing unit. A shielding is provided for the detector and the processing unit. The shielding includes at least two linked sections, of which a first section has a higher electrical conductivity than a second section, the second section being in thermal contact with the cooling unit.

摘要翻译： 公开了一种具有至少一个检测器和用于处理检测器信号的处理单元的检测装置。 在至少一个实施例中，检测装置包括用于冷却检测器和处理单元的至少一个冷却单元。 为检测器和处理单元提供屏蔽。 屏蔽包括至少两个连接部分，其中第一部分具有比第二部分更高的电导率，第二部分与冷却单元热接触。

公开(公告)号：US20120249141A1

公开(公告)日：2012-10-04

申请号：US13433972

申请日：2012-03-29

申请人： Jan Ole Blumhagen ,  Matthias Fenchel ,  Ralf Ladebeck

发明人： Jan Ole Blumhagen ,  Matthias Fenchel ,  Ralf Ladebeck

IPC分类号： G01R33/565 ,  G01R33/34

CPC分类号： G01R33/56563 ,  G01R33/481 ,  G01R33/56572

摘要： A method is disclosed for correcting a distortion in a magnetic resonance recording. A distortion indicates a mismatch between a distorted position of an image point in the magnetic resonance recording and an actual position of the image point. According to at least one embodiment of the method, a B0 field deviation and a gradient field deviation are determined for at least one actual position in the magnetic resonance facility. Furthermore, a magnetic resonance recording of an examination object is captured and the actual position of an image point of the magnetic resonance recording is determined as a function of the distorted position of the image point in the magnetic resonance recording, the B0 field deviation at the actual position and the gradient field deviation at the actual position.

摘要翻译： 公开了一种用于校正磁共振记录中的失真的方法。 失真表示磁共振记录中的图像点的失真位置与图像点的实际位置之间的失配。 根据该方法的至少一个实施例，为磁共振设备中​​的至少一个实际位置确定B0场偏移和梯度场偏差。 此外，拍摄检查对象的磁共振记录，并且磁共振记录的图像点的实际位置被确定为磁共振记录中的图像点的失真位置的函数，则在 实际位置和实际位置的梯度场偏差。

公开(公告)号：US08278926B2

公开(公告)日：2012-10-02

申请号：US12458368

申请日：2009-07-09

申请人： Ralf Ladebeck

发明人： Ralf Ladebeck

IPC分类号： G01V3/00

CPC分类号： A61B5/055 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5235 ,  A61B6/5247 ,  G01R33/481

摘要： A method for determining attenuation values of an object is disclosed. In at least one embodiment, the method includes stationary positioning of the object, irradiation of the object via a radiation source, measurement of the object's transmission data via a detection system, determination of at least one geometric property of the object on the basis of the transmission data, and assignment of attenuation values to the object on the basis of the geometric property.

摘要翻译： 公开了一种用于确定物体的衰减值的方法。 在至少一个实施例中，该方法包括对象的固定定位，经由辐射源照射对象，经由检测系统测量对象的传输数据，基于该对象的至少一个几何属性的确定 传输数据，以及根据几何属性将衰减值分配给对象。

公开(公告)号：US08195417B2

公开(公告)日：2012-06-05

申请号：US12219610

申请日：2008-07-24

申请人： Thorsten Feiweier ,  Ralf Ladebeck ,  Diana Martin ,  Hartwig Newiger ,  Josef Pfeuffer ,  Michael Szimtenings ,  Harald Werthner

发明人： Thorsten Feiweier ,  Ralf Ladebeck ,  Diana Martin ,  Hartwig Newiger ,  Josef Pfeuffer ,  Michael Szimtenings ,  Harald Werthner

IPC分类号： G01R35/00

CPC分类号： A61B6/032 ,  A61B5/11 ,  A61B5/7285 ,  A61B6/037 ,  A61B6/5247 ,  A61B6/541 ,  A61B8/00 ,  A61B8/4416 ,  A61B90/36 ,  A61B2090/364 ,  G06F19/00

摘要： Disclosed is a method and apparatus for recording measured data from a patient by taking movements into account by use of a medical device designed both for recording motion-related measured data and for recording nuclear medicine measured data. The method may include recording nuclear medicine measured data by use of the medical device, simultaneously recording motion-related measured data by use of the medical device, determining at least one motion information item relating to at least one movement of the patient and/or at least one movement inside the body of the patient during the ongoing measured data recording by evaluating at least a portion of the previously recorded motion-related measured data, and carrying out motion correction for at least a portion of the nuclear medicine measured data by use of the computational device in parallel with recording the measured data.

摘要翻译： 公开了一种通过使用设计用于记录运动相关测量数据和记录核医学测量数据的医疗装置来考虑运动来记录来自患者的测量数据的方法和装置。 该方法可以包括通过使用医疗装置记录核医学测量数据，同时通过使用医疗装置记录与运动有关的测量数据，确定与患者的至少一个运动有关的至少一个运动信息项和/或在 通过评估先前记录的运动相关测量数据的至少一部分，以及通过使用以下方式对至少一部分核医学测量数据执行运动校正，在进行中的测量数据记录期间在患者体内进行至少一次运动 计算设备并行记录测量数据。

公开(公告)号：US20120059242A1

公开(公告)日：2012-03-08

申请号：US12877128

申请日：2010-09-08

申请人： James Frank Caruba ,  Ralf Ladebeck ,  Elmar Rummert

发明人： James Frank Caruba ,  Ralf Ladebeck ,  Elmar Rummert

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/0035 ,  A61B6/037 ,  A61B6/0442 ,  A61B6/0457 ,  A61B6/4258 ,  A61B6/4417 ,  A61B6/481 ,  A61B6/5235 ,  A61B6/56 ,  G01R33/36 ,  G01R33/3685 ,  G01R33/481

摘要： A hybrid magnetic resonance (MR) and positron emission tomography (PET) imaging system reduces likelihood of artifact distortion in PET images attributable to MR local coil cables and connectors in the patient table. MR local coil cables coupling the MR scanner and the MR local coil connectors are oriented so that they are outside the scanner field of view when performing PET scans.

摘要翻译： 混合磁共振（MR）和正电子发射断层摄影（PET）成像系统降低归因于患者表中的MR局部线圈电缆和连接器的PET图像中的伪像失真的可能性。 将MR扫描仪和MR局部线圈连接器连接的MR局部线圈电缆定向成使得当执行PET扫描时它们在扫描仪视野之外。

公开(公告)号：US20110178387A1

公开(公告)日：2011-07-21

申请号：US13008956

申请日：2011-01-19

申请人： Ralf Ladebeck ,  Sebastian Schmidt

发明人： Ralf Ladebeck ,  Sebastian Schmidt

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/481

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100074365A1

公开(公告)日：2010-03-25

申请号：US12585373

申请日：2009-09-14

申请人： Ralf Ladebeck ,  Markus Vester

发明人： Ralf Ladebeck ,  Markus Vester

IPC分类号： H04B15/00 ,  H04B1/10

CPC分类号： G01T1/1603 ,  A61B5/0002 ,  A61B5/055 ,  A61B5/7257 ,  A61B6/037 ,  A61B6/5247 ,  G01D3/036 ,  G01R33/481 ,  G01T1/17

摘要： A method and a transmission system are disclosed for the transmission of wanted signals between a sensor and an evaluation unit. In order to suppress interference to the sensor signals due to external interference sources as far as possible, at least one embodiment of the inventive system has at least one signal receiver with the sensor for detecting a wanted signal and a signal processing device for conditioning the wanted signal, at whose output a mixed signal with a wanted signal component and an interference signal component from at least one interference source are present; an interference source signal input for detecting at least one interference source signal of the at least one interference source; a filter device for reconstructing the interference signal component as a function of the at least one interference source signal; and a subtractor for eliminating interference superimposed on the wanted signal.

摘要翻译： 公开了用于在传感器和评估单元之间传输所需信号的方法和传输系统。 为了尽可能地抑制由于外部干扰源对传感器信号的干扰，本发明系统的至少一个实施例具有至少一个具有用于检测有用信号的传感器的信号接收器和用于调节所需信号的信号处理装置 信号，其输出具有有用信号分量的混合信号和来自至少一个干扰源的干扰信号分量; 用于检测所述至少一个干扰源的至少一个干扰源信号的干扰源信号输入; 滤波器装置，用于根据所述至少一个干扰源信号重建所述干扰信号分量; 以及用于消除叠加在有用信号上的干扰的减法器。

公开(公告)号：US20100006782A1

公开(公告)日：2010-01-14

申请号：US12458367

申请日：2009-07-09

申请人： Ralf Ladebeck

发明人： Ralf Ladebeck

IPC分类号： G21F3/00

CPC分类号： A61B5/055 ,  A61B6/03 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/4488 ,  A61B6/5247

摘要： A detection device with at least one detector and a processing unit for processing signals of the detector is disclosed. In at least one embodiment, the detection device includes at least one cooling unit for cooling the detector and the processing unit. A shielding is provided for the detector and the processing unit. The shielding includes at least two linked sections, of which a first section has a higher electrical conductivity than a second section, the second section being in thermal contact with the cooling unit.

摘要翻译： 公开了一种具有至少一个检测器和用于处理检测器信号的处理单元的检测装置。 在至少一个实施例中，检测装置包括用于冷却检测器和处理单元的至少一个冷却单元。 为检测器和处理单元提供屏蔽。 屏蔽包括至少两个连接部分，其中第一部分具有比第二部分更高的电导率，第二部分与冷却单元热接触。

公开(公告)号：US20080169812A1

公开(公告)日：2008-07-17

申请号：US12007739

申请日：2008-01-15

申请人： Ralf Ladebeck ,  Georg Pirkl

发明人： Ralf Ladebeck ,  Georg Pirkl

IPC分类号： G01V3/00

CPC分类号： G01R33/481 ,  A61B6/037 ,  G01R33/3664 ,  G01R33/3692

摘要： A tomographic measuring system is disclosed with at least two tomographic measuring devices, of which at least a first can interfere with a second in a manner disadvantageous for conducting measurements. In at least one embodiment, the system includes a switching-off mechanism at least in the first measuring device; and at least one external connection to the first measuring device for transmitting a switching-off signal to the switching-off mechanism, if the second measuring device is conducting a measurement or will conduct one. A method for conducting measurements with an appropriate tomographic measuring system is also disclosed.

摘要翻译： 公开了一种断层摄影测量系统，其具有至少两个断层摄影测量装置，其中至少第一可以以不利于进行测量的方式干扰第二次。 在至少一个实施例中，该系统至少在第一测量装置中包括切断机构; 以及与所述第一测量装置的至少一个外部连接，用于将所述关闭信号发送到所述关闭机构，如果所述第二测量装置正在进行测量或将进行测量。 还公开了一种用适当的断层摄影测量系统进行测量的方法。