公开(公告)号：US09651644B2

公开(公告)日：2017-05-16

申请号：US13848965

申请日：2013-03-22

申请人： Thorsten Feiweier ,  Christof Krellmann ,  Bernd Kuehn ,  Dominik Paul ,  Josef Pfeuffer ,  Elisabeth Preusche ,  Katrin Wohlfarth

发明人： Thorsten Feiweier ,  Christof Krellmann ,  Bernd Kuehn ,  Dominik Paul ,  Josef Pfeuffer ,  Elisabeth Preusche ,  Katrin Wohlfarth

IPC分类号： G01V3/00 ,  G01R33/563 ,  G01R33/565 ,  G01R33/483

CPC分类号： G01R33/563 ,  G01R33/4833 ,  G01R33/4838 ,  G01R33/56527

摘要： In a method and a magnetic resonance (MR) system, a marked area is determined that demarcates a predetermined volume segment of the subject relative to the regions adjacent thereto. Nuclei in the predetermined volume segment are excited, or nuclei in a region adjacent thereto are saturated with an RF excitation pulse at the same time a magnetic field gradient is activated. The center frequency of a frequency range of the RF excitation pulse and the direction of the magnetic field gradient are adjusted dependent on resonant frequencies of substances present within the predetermined volume segment in order, starting from the predetermined volume segment to shift an actual excitation volume segment excited by the RF excitation pulse toward the marked area, or to shift a saturation volume saturated by the RF excitation pulse away from the marked area. MR data are then acquired from the predetermined volume segment.

公开(公告)号：US20130249550A1

公开(公告)日：2013-09-26

申请号：US13848965

申请日：2013-03-22

申请人： Thorsten Feiweier ,  Christof Krellmann ,  Bernd Kuehn ,  Dominik Paul ,  Josef Pfeuffer ,  Elisabeth Preusche ,  Katrin Wohlfarth

发明人： Thorsten Feiweier ,  Christof Krellmann ,  Bernd Kuehn ,  Dominik Paul ,  Josef Pfeuffer ,  Elisabeth Preusche ,  Katrin Wohlfarth

IPC分类号： G01R33/563

CPC分类号： G01R33/563 ,  G01R33/4833 ,  G01R33/4838 ,  G01R33/56527

摘要： In a method and a magnetic resonance (MR) system, a marked area is determined that demarcates a predetermined volume segment of the subject relative to the regions adjacent thereto. Nuclei in the predetermined volume segment are excited, or nuclei in a region adjacent thereto are saturated with an RF excitation pulse at the same time a magnetic field gradient is activated. The center frequency of a frequency range of the RF excitation pulse and the direction of the magnetic field gradient are adjusted dependent on resonant frequencies of substances present within the predetermined volume segment in order, starting from the predetermined volume segment to shift an actual excitation volume segment excited by the RF excitation pulse toward the marked area, or to shift a saturation volume saturated by the RF excitation pulse away from the marked area. MR data are then acquired from the predetermined volume segment.

摘要翻译： 在方法和磁共振（MR）系统中，确定标记的区域，其相对于与其相邻的区域划定对象的预定体积段。 在预定体积段中的核被激发，或者与其相邻的区域中的核被RF激励脉冲饱和，同时磁场梯度被激活。 RF激励脉冲的频率范围和磁场梯度的方向的中心频率根据预定体积段中存在的物质的谐振频率依次调整，从预定的音量段开始，以使实际的励磁音量段 通过RF激发脉冲激发到标记区域，或者使由RF激发脉冲饱和的饱和体积偏离标记区域。 然后从预定的音量段获取MR数据。

公开(公告)号：US09055882B2

公开(公告)日：2015-06-16

申请号：US13456739

申请日：2012-04-26

申请人： Thorsten Feiweier ,  Martin Harder ,  John Kirsch ,  Wilfried Landschuetz ,  Andreas Schmidt ,  Katrin Wohlfarth

发明人： Thorsten Feiweier ,  Martin Harder ,  John Kirsch ,  Wilfried Landschuetz ,  Andreas Schmidt ,  Katrin Wohlfarth

IPC分类号： A61B5/055 ,  G01R33/54 ,  G01R33/483 ,  G01R33/565

CPC分类号： A61B5/055 ,  G01R33/4833 ,  G01R33/543 ,  G01R33/56563

摘要： In a method and apparatus to generate a magnetic resonance (MR) image in a volume of interest of an examination subject, the magnetization is excited in an additional volume in the subject by at least one RF pulse, in order to achieve a desired magnetization in the volume of interest. The additional excitation volume differs at least partially from the volume of interest. For this purpose, at least one MR overview image of the examination subject is analyzed automatically to determine a position of at least one anatomical structure of the examination subject, from which the volume of interest is automatically determined. The additional excitation volume is automatically determined using the position of the at least one anatomical structure. The MR image in the volume of interest is acquired with excitation of the magnetization in the automatically determined additional excitation volume.

摘要翻译： 在用于在检查对象感兴趣的体积中产生磁共振（MR）图像的方法和装置中，通过至少一个RF脉冲在受试者的附加体积中激发磁化，以便实现期望的磁化 感兴趣的数量。 额外的励磁体积至少部分地与感兴趣的体积不同。 为此，自动分析检查对象的至少一个MR概述图像，以确定检查对象的至少一个解剖结构的位置，从该位置自动确定感兴趣的体积。 使用至少一个解剖结构的位置自动确定附加激发体积。 感兴趣体积中的MR图像在自动确定的附加激发体积中的磁化的激发获得。

公开(公告)号：US20090041318A1

公开(公告)日：2009-02-12

申请号：US12219613

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： G01R33/56 ,  G01R33/54

CPC分类号： A61B6/032 ,  A61B5/11 ,  A61B5/7285 ,  A61B6/037 ,  A61B6/541 ,  A61B8/00 ,  A61B8/4416 ,  G06F19/00

摘要： A method is disclosed for recording measured data of a patient while taking account of movement operations by way of a medical device that is designed both for recording movement-related measured data, in particular measured data of high temporal resolution and/or measured data that can be interpolated with regard to movement operations, with the aid of an imaging method and/or by means of at least one sensor element, and also for recording nuclear medicine measured data, in particular of lower temporal resolution. In at least one embodiment, the method includes recording nuclear medicine measured data with the aid of the medical device; simultaneously recording movement-related measured data with the aid of the medical device; determining at least one item of movement information relating to at least one movement operation of the patient and/or in the body of the patient by evaluating at least a portion of the recorded measured data of high temporal resolution on the part of a computing device of the medical device; and adapting at least one item of attenuation correction information available for the computing device and serving for reconstructing the nuclear medicine measured data, doing so as a function of the at least one determined item of movement information.

摘要翻译： 公开了一种用于记录患者的测量数据的方法，同时考虑到通过设计用于记录运动相关测量数据的医疗设备，特别是高时间分辨率的测量数据和/或可测量数据的测量数据， 借助于成像方法和/或通过至少一个传感器元件，以及用于记录核医学测量数据，特别是用于记录较低时间分辨率的内插关于移动操作。 在至少一个实施例中，该方法包括借助医疗装置记录核医学测量数据; 借助医疗设备同时记录运动相关测量数据; 通过在计算设备的一部分上评估所记录的高时间分辨率测量数据的至少一部分来确定与患者的至少一个移动操作和/或患者身体有关的至少一个移动信息项 医疗器械; 以及修改可用于所述计算设备的至少一项衰减校正信息，并且用于重构所述核医学测量数据，作为所述至少一个确定的运动信息项的函数。

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：US08180128B2

公开(公告)日：2012-05-15

申请号：US12219613

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： G01R33/56 ,  G01R33/54

CPC分类号： A61B6/032 ,  A61B5/11 ,  A61B5/7285 ,  A61B6/037 ,  A61B6/541 ,  A61B8/00 ,  A61B8/4416 ,  G06F19/00

摘要： A method is disclosed for recording measured data of a patient while taking account of movement operations by way of a medical device that is designed both for recording movement-related measured data, in particular measured data of high temporal resolution and/or measured data that can be interpolated with regard to movement operations, with the aid of an imaging method and/or by means of at least one sensor element, and also for recording nuclear medicine measured data, in particular of lower temporal resolution. In at least one embodiment, the method includes recording nuclear medicine measured data with the aid of the medical device; simultaneously recording movement-related measured data with the aid of the medical device; determining at least one item of movement information relating to at least one movement operation of the patient and/or in the body of the patient by evaluating at least a portion of the recorded measured data of high temporal resolution on the part of a computing device of the medical device; and adapting at least one item of attenuation correction information available for the computing device and serving for reconstructing the nuclear medicine measured data, doing so as a function of the at least one determined item of movement information.

摘要翻译： 公开了一种用于记录患者的测量数据的方法，同时考虑到通过设计用于记录运动相关测量数据的医疗设备，特别是高时间分辨率的测量数据和/或可测量数据的测量数据， 借助于成像方法和/或通过至少一个传感器元件，以及用于记录核医学测量数据，特别是用于记录较低时间分辨率的内插关于移动操作。 在至少一个实施例中，该方法包括借助医疗装置记录核医学测量数据; 借助医疗设备同时记录运动相关测量数据; 通过在计算设备的一部分上评估所记录的高时间分辨率的测量数据的至少一部分来确定与患者的至少一个移动操作和/或患者身体有关的至少一个移动信息项 医疗器械; 以及修改可用于所述计算设备的至少一项衰减校正信息，并且用于重构所述核医学测量数据，作为所述至少一个确定的运动信息项的函数。

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：US20130088228A1

公开(公告)日：2013-04-11

申请号：US13649326

申请日：2012-10-11

申请人： Thorsten Feiweier ,  Bernd Kuehn

发明人： Thorsten Feiweier ,  Bernd Kuehn

IPC分类号： G01R33/56 ,  G01R33/38

CPC分类号： G01R33/4838 ,  G01R33/5607

摘要： In a method and apparatus for magnetic resonance (MR) imaging, a magnetization of nuclear spins in a subject is prepared in multiple preparation modules of an acquisition sequence. MR signals are acquired with at least one imaging module of the sequence. Spoiler gradient fields are generated in the multiple preparation modules in order to affect a transverse magnetization of the spins. The spoiler gradient fields that are applied in at least two different preparation modules are spatially varied along different directions. Spoiler gradient moments of the spoiler gradient fields are selected so that, for at least one of three orthogonal spatial directions, a weighted sum of the spoiler gradient moments that are applied along this spatial direction satisfies a threshold condition.

摘要翻译： 在用于磁共振（MR）成像的方法和装置中，在采集序列的多个准备模块中制备受试者的核自旋的磁化。 使用该序列的至少一个成像模块来获取MR信号。 扰流器梯度场在多个准备模块中产生，以影响自旋的横向磁化。 应用于至少两个不同准备模块的扰流板梯度场在不同方向上空间变化。 选择扰流板梯度场的扰流器梯度矩，使得对于三个正交空间方向中的至少一个，沿着该空间方向施加的扰流器梯度力矩的加权和满足阈值条件。

公开(公告)号：US09453896B2

公开(公告)日：2016-09-27

申请号：US13649326

申请日：2012-10-11

申请人： Thorsten Feiweier ,  Bernd Kuehn

发明人： Thorsten Feiweier ,  Bernd Kuehn

IPC分类号： G01R33/56 ,  G01R33/38 ,  G01R33/483

CPC分类号： G01R33/4838 ,  G01R33/5607

摘要： In a method and apparatus for magnetic resonance (MR) imaging, a magnetization of nuclear spins in a subject is prepared in multiple preparation modules of an acquisition sequence. MR signals are acquired with at least one imaging module of the sequence. Spoiler gradient fields are generated in the multiple preparation modules in order to affect a transverse magnetization of the spins. The spoiler gradient fields that are applied in at least two different preparation modules are spatially varied along different directions. Spoiler gradient moments of the spoiler gradient fields are selected so that, for at least one of three orthogonal spatial directions, a weighted sum of the spoiler gradient moments that are applied along this spatial direction satisfies a threshold condition.

摘要翻译： 在用于磁共振（MR）成像的方法和装置中，在采集序列的多个准备模块中制备受试者的核自旋的磁化。 使用该序列的至少一个成像模块来获取MR信号。 扰流器梯度场在多个准备模块中产生，以影响自旋的横向磁化。 应用于至少两个不同准备模块的扰流板梯度场在不同方向上空间变化。 选择扰流板梯度场的扰流器梯度矩，使得对于三个正交空间方向中的至少一个，沿着该空间方向施加的扰流器梯度力矩的加权和满足阈值条件。

公开(公告)号：US20110043204A1

公开(公告)日：2011-02-24

申请号：US12859461

申请日：2010-08-19

申请人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Thorsten Feiweier ,  Bernd Kuehn ,  Mathias Nittka ,  Carsten Prinz ,  Thorsten Speckner

发明人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Thorsten Feiweier ,  Bernd Kuehn ,  Mathias Nittka ,  Carsten Prinz ,  Thorsten Speckner

IPC分类号： G01R33/44

CPC分类号： G01R33/546 ,  G01R33/543

摘要： In a magnetic resonance system according to a measurement protocol defined in advance and comprising multiple acquisition parameters, wherein given a non-compliance with at least one limit value (which is automatically established before the beginning of a subject-specific measurement data acquisition)—in particular a SAR limit value and/or a magneto-stimulation limit value and/or a hardware limit value—by the measurement protocol, an adaptation of at least one acquisition parameter ensues using at least one (in particular user-defined) protocol-specific rule for compliance with the limit value, and the measurement data acquisition ensues automatically according to the adapted acquisition parameters.

摘要翻译： 在根据预先定义并包括多个采集参数的测量协议的磁共振系统中，其中给定不符合至少一个限制值（其在对象特异性测量数据获取开始之前自动建立） - 在 特别是SAR限制值和/或磁刺激极限值和/或硬件限制值 - 通过测量协议，使用至少一个（特别是用户定义的）协议特定的随机序列来调整至少一个采集参数 根据适应的采集参数自动进行测量数据采集。