公开(公告)号：US20090037130A1

公开(公告)日：2009-02-05

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： A method is disclosed 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, in particular measured data with a high temporal resolution and/or measured data which can be interpolated with regard to movements, using an imaging method and/or by use of at least one sensor element and for recording nuclear medicine measured data, in particular with a relatively low temporal resolution. In at least one embodiment, the method includes 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 by use of a computational device of the medical device; and carrying out motion correction for at least a portion of the nuclear medicine measured data in real-time by use of the computational device in parallel with recording the measured data depending on the at least one determined motion information item.

摘要翻译： 公开了一种用于通过使用设计用于记录运动相关测量数据的医疗装置，特别是具有高时间分辨率的测量数据和/或可被内插的测量数据来考虑来自患者的测量数据来记录测量数据的方法 关于运动，使用成像方法和/或通过使用至少一个传感器元件并且用于记录核医学测量数据，特别是具有相对低的时间分辨率。 在至少一个实施例中，该方法包括使用医疗装置记录核医学测量数据; 通过使用医疗装置同时记录运动相关测量数据; 在正在进行的测量数据记录期间，通过评估先前记录的运动相关测量数据的至少一部分来确定与患者的至少一个运动和/或患者体内的至少一个运动相关的至少一个运动信息项 通过使用医疗装置的计算装置; 以及根据所述至少一个所确定的运动信息项，通过使用所述计算装置与记录所述测量数据并行地对所述核医学测量数据的至少一部分进行实时运动校正。

公开(公告)号：US07482592B2

公开(公告)日：2009-01-27

申请号：US11438208

申请日：2006-05-23

申请人： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Sebastian Schmidt ,  Markus Vester

发明人： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Sebastian Schmidt ,  Markus Vester

IPC分类号： G01T1/166

CPC分类号： G01T1/2985 ,  A61B6/037 ,  A61B6/507 ,  G01R33/481 ,  G01T1/1603

摘要： A method for determining positron emission measurement information in the context of positron emission tomography is disclosed. The method includes using a marker substance to carry out a positron emission measurement, in a body area of a subject to be examined, to determine positron emission measurement information, and at the same time, generating images of the body area to be examined by way of a second medical method with a time resolution suitable for determining perfusion and/or diffusion information. The method further includes using the images from the second method to determine perfusion and/or diffusion information for at least a part of the measurement period, and evaluating the positron emission measurement information as a function of the perfusion and/or diffusion information.

摘要翻译： 公开了一种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。 该方法包括使用标记物质进行待检查对象的身体区域中的正电子发射测定，以确定正电子发射测量信息，并且同时生成要检查的身体区域的图像 具有适合于确定灌注和/或扩散信息的时间分辨率的第二医疗方法。 该方法还包括使用来自第二方法的图像来确定至少部分测量周期的灌注和/或扩散信息，以及作为灌注和/或扩散信息的函数来评估正电子发射测量信息。

公开(公告)号：US20050189940A1

公开(公告)日：2005-09-01

申请号：US11036727

申请日：2005-01-14

申请人： Thorsten Feiweier ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Markus Vester

发明人： Thorsten Feiweier ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Markus Vester

IPC分类号： A61B5/055 ,  G01R33/34 ,  G01R33/3415 ,  G01R33/36 ,  G01V3/00

CPC分类号： G01R33/5612 ,  G01R33/246 ,  G01R33/543 ,  G01R33/5659

摘要： In a magnetic resonance system and an operating method therefor, a B1 field distribution of a radio-frequency antenna is measured in at least one part of a examination volume of the magnetic resonance system, and then the RF pulses emitted by the radio-frequency antenna are optimized, based on the determined B1 field distribution, for homogenization in a specific volume. An effective volume within the examination volume is determined beforehand for each applied RF pulse and, based on the determined B1 field distribution, the appertaining RF pulse is individually adjusted such that the B1 field is homogenized within the effective volume of the RF pulse.

摘要翻译： 在磁共振系统及其操作方法中，在磁共振系统的检查体积的至少一部分中测量射频天线的B 1场分布，然后RF 基于确定的B SUB场分布来优化由射频天线发射的脉冲用于在特定体积中的均匀化。 对于每个施加的RF脉冲，预先确定检查体积内的有效体积，并且基于所确定的B SUB场分布，分别调整相应的RF脉冲，使得B <1> SUB>场在RF脉冲的有效体积内均匀化。

公开(公告)号：US06703836B2

公开(公告)日：2004-03-09

申请号：US09964567

申请日：2001-09-28

申请人： Ralf Ladebeck ,  Guenter Schnur

发明人： Ralf Ladebeck ,  Guenter Schnur

IPC分类号： G01V300

CPC分类号： G01R33/389 ,  G01R33/56563

摘要： A nuclear magnetic resonance tomograph or an imaging magnetic resonance apparatus (1) has a magnet (3) which is isolated in terms of vibration from a surrounding structure, in particular a building floor (15), by an isolation system (17). The isolation system (17) has an actively controlled isolation module (23) which is preferably designed to damp non-acoustic vibrations, in particular vibrations with a frequency of less than 50 Hz. According to a preferred embodiment, moreover, a passive isolation module (21) with a vibration-damping material (D) is present. A particularly high degree of isolation of the magnet (3) from the surrounding structure can be achieved with the aid of the isolation system (17).

摘要翻译： 核磁共振断层摄影机或成像磁共振装置（1）具有通过隔离系统（17）从周围结构，特别是建筑物地板（15）的振动隔离的磁体（3）。 隔离系统（17）具有主动控制的隔离模块（23），其优选地被设计成阻尼非声学振动，特别是频率小于50Hz的振动。 此外，根据优选实施例，存在具有减振材料（D）的无源隔离模块（21）。 借助隔离系统（17）可以实现磁体（3）与周围结构的特别高的隔离度。

公开(公告)号：US08805474B2

公开(公告)日：2014-08-12

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： A61B5/05

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：US08768432B2

公开(公告)日：2014-07-01

申请号：US12822289

申请日：2010-06-24

申请人： Ralf Ladebeck

发明人： Ralf Ladebeck

IPC分类号： A61B5/055 ,  A61B6/03 ,  A61B6/00 ,  A61B5/107 ,  G01R33/48 ,  G06F19/00

CPC分类号： A61B6/032 ,  A61B5/0035 ,  A61B5/055 ,  A61B5/1077 ,  A61B5/7207 ,  A61B6/03 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/481 ,  G06F19/321

摘要： An apparatus is disclosed for combined magnetic resonance tomography and positron emission tomography imaging which is designed for recording PET image data of a person under examination from an examination area. In at least one embodiment, the apparatus includes a scanning unit, embodied to scan a prespecified area of the person under examination and based on the scanning, to determine a contour of the person under examination for the prespecified area; and a processing unit, embodied, based on the contour determined, to carry out an absorption correction of PET data which has been recorded from the prespecified area of the person under examination. A method is also disclosed.

摘要翻译： 公开了一种用于组合磁共振断层扫描和正电子发射断层摄影成像的装置，其被设计用于从检查区域记录被检查者的PET图像数据。 在至少一个实施例中，该装置包括扫描单元，其被实施为扫描被检查者的预先指定的区域并且基于扫描，以确定被预先指定的区域的被检查者的轮廓; 以及处理单元，其基于所确定的轮廓实现对从被检查者的预定区域记录的PET数据的吸收校正。 还公开了一种方法。

公开(公告)号：US08717018B2

公开(公告)日：2014-05-06

申请号：US12892318

申请日：2010-09-28

申请人： Ralf Ladebeck

发明人： Ralf Ladebeck

IPC分类号： G01R33/00 ,  G01R33/02 ,  A61B6/04

CPC分类号： A61G7/1032 ,  A61B6/037 ,  A61B6/04 ,  A61G13/128

摘要： A patient positioning couch for a combined medical examination device is disclosed. In at least one embodiment, at least one opening is provided in a support plate of the patient positioning couch and the patient positioning couch includes at least one conveyor belt in order to move a patient on the support plate in the longitudinal direction.

摘要翻译： 公开了一种组合医疗检查装置的患者定位床。 在至少一个实施例中，至少一个开口设置在患者定位沙发的支撑板中，并且患者定位沙发包括至少一个传送带，以沿纵向移动支撑板上的患者。

公开(公告)号：US08648595B2

公开(公告)日：2014-02-11

申请号：US13015065

申请日：2011-01-27

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

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

IPC分类号： G01V3/00

CPC分类号： G01R33/481 ,  G01R33/56563

摘要： A method is disclosed for determining a location of a subarea of an area under examination in a magnetic resonance system. The subarea is arranged at the edge of a field-of-view of the magnetic resonance system. In at least one embodiment of the method, at least one slice position is determined for an MR image in which the B0 field at the edge of the MR image satisfies a homogeneity value. For the slice position determined an MR image is acquired which contains the subarea at the edge of the field-of-view and the location of the subarea of the object under examination is determined through the location of the subarea in the MR image.

摘要翻译： 公开了一种用于确定磁共振系统中被检查区域的子区域的位置的方法。 子区域布置在磁共振系统的视野的边缘。 在该方法的至少一个实施例中，为MR图像确定至少一个切片位置，其中MR图像边缘处的B0场满足均匀性值。 对于确定的切片位置，获取包含在视场边缘处的子区域的MR图像，并且通过MR图像中的子区域的位置来确定被检查对象的子区域的位置。

公开(公告)号：US20130197349A1

公开(公告)日：2013-08-01

申请号：US13747756

申请日：2013-01-23

申请人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK

发明人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK

IPC分类号： A61B6/00 ,  A61B6/03 ,  A61B5/055 ,  A61B5/00

CPC分类号： A61B6/5247 ,  A61B5/0035 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/0555 ,  A61B5/4872 ,  A61B5/4875 ,  A61B5/72 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/463 ,  A61B6/466 ,  A61B6/5217 ,  G01R33/481

摘要： A method is disclosed for calculating a spatially resolved value of an absorption parameter for a positron emission tomography (PET) scan of an examination object via magnetic resonance tomography (MRT). Magnetic resonance data is acquired within a first region lying within a field of view of a magnetic resonance system and within a second region bordering on the first and lying at the edge of the field of view. The method includes the spatially resolved calculation of a first value of the absorption parameter from the first MR data within the first region and of a second value from the second MR data within the second region. A three-dimensional parameter map is obtained from the first value. This parameter map is extended by the second value such that within the first region and the second region the parameter map has the value of the absorption parameter in spatially resolved form.

摘要翻译： 公开了一种用于通过磁共振断层摄影（MRT）计算检查对象的正电子发射断层摄影（PET）扫描的吸收参数的空间分辨值的方法。 磁共振数据在位于磁共振系统的视野内的第一区域内并且在与第一区域接合并位于视野边缘的第二区域内获取。 该方法包括从第一区域内的第一MR数据和第二区域内的第二MR数据的第二值的空间分辨计算吸收参数的第一值。 从第一个值获得三维参数图。 该参数图被扩展第二值，使得在第一区域和第二区域内参数图具有空间分辨形式的吸收参数的值。

公开(公告)号：US08467847B2

公开(公告)日：2013-06-18

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 ,  A61B6/00

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。