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1. 发明授权

US10520574B2 Determining diffusion tensors using magnetic resonance tomography scanners 有权
公开(公告)号：US10520574B2
公开(公告)日：2019-12-31
申请号：US15652682
申请日：2017-07-18
申请人： Peter Speier
发明人： Peter Speier
IPC分类号： G01V3/00 , G01R33/563
摘要： A magnetic resonance tomography scanner is provided for the determination a diffusion tensor of an examination object, and a method is provided for operating the magnetic resonance tomography scanner. The magnetic resonance tomography scanner acquires a volume image of the examination object by imaging magnetic resonance tomography without diffusion encoding. The control system segments the image according to diffusion-relevant symmetry properties and also determines volume elements of a symmetry group. A first and a second component of a diffusion tensor are acquired by the magnetic resonance tomography scanner at different angles and the control unit uses the symmetry property with the acquired components and the volume image to determine a diffusion tensor for the volume elements.

2. 发明授权

US10393845B2 Signal transmitter for pilot tone navigation 有权
公开(公告)号：US10393845B2
公开(公告)日：2019-08-27
申请号：US15368607
申请日：2016-12-03
申请人： Steffen Schröter , Jan Bollenbeck , Matthias Fenchel , Peter Speier , Markus Vester
发明人： Steffen Schröter , Jan Bollenbeck , Matthias Fenchel , Peter Speier , Markus Vester
IPC分类号： G01R33/36 , G01R33/565
摘要： A transmitter for pilot tone navigation in a magnetic resonance tomography system includes a power supply and an antenna. The transmitter is configured to transmit a pilot tone signal via the antenna. The transmitter also includes a decoupling element in order to protect a transmitter output from signals that the antenna receives with excitation pulses of the magnetic resonance tomography system during a magnetic resonance tomography. In a method, movement-dependent changes to the pilot tone signal of the transmitter are identified by a controller of the magnetic resonance tomography system.

3. 发明申请

US20130200893A1 Determination of a Measuring Sequence for a Magnetic Resonance System 有权
标题翻译：确定磁共振系统的测量顺序
公开(公告)号：US20130200893A1
公开(公告)日：2013-08-08
申请号：US13757446
申请日：2013-02-01
申请人： Björn Heismann , Mathias Nittka , Peter Speier , Aurélien Stalder
发明人： Björn Heismann , Mathias Nittka , Peter Speier , Aurélien Stalder
IPC分类号： G01R33/54 , G01R33/38
CPC分类号： G01R33/543 , G01R33/38 , G01R33/3854 , G01R33/56518
摘要： A method and a measuring-sequence-determining device for determining a measuring sequence for a magnetic resonance system based on at least one intra-repetition-interval time parameter are provided. During the determination of the measuring sequence in a gradient-optimization method, gradient-pulse parameters of the measuring sequence are automatically optimized to reduce at least one gradient-pulse-parameter maximum value. As a boundary condition in the gradient-optimization method, the intra-repetition-interval time parameter is kept constant at least within a specified tolerance value.
摘要翻译：提供了一种用于基于至少一个重复间隔时间参数确定磁共振系统的测量序列的方法和测量序列确定装置。在梯度优化方法中确定测量序列期间，自动优化测量序列的梯度脉冲参数以减少至少一个梯度脉冲参数最大值。作为梯度优化方法中的边界条件，重复间隔时间参数至少保持在规定的公差值以内。

4. 发明授权

US08400150B2 Magnetic resonance system and method for control thereof 有权
标题翻译：磁共振系统及其控制方法
公开(公告)号：US08400150B2
公开(公告)日：2013-03-19
申请号：US12698292
申请日：2010-02-02
申请人： Christof Krellmann , Stefan Assmann , Andrea Hopf , Mike Mueller , Michaela Schmidt , Peter Speier
发明人： Christof Krellmann , Stefan Assmann , Andrea Hopf , Mike Mueller , Michaela Schmidt , Peter Speier
IPC分类号： G01V3/00
CPC分类号： A61B5/055 , G01R33/54 , G01R33/546
摘要： A method to control a magnetic resonance system includes at least one protocol step for measurement data acquisition with the magnetic resonance system, and at least one operator interaction step which allows an operator to enter information that affects at least one subsequent step in the control of the magnetic resonance system.
摘要翻译：控制磁共振系统的方法包括用于使用磁共振系统进行测量数据采集的至少一个协议步骤，以及允许操作者输入影响至少一个后续步骤的信息的至少一个操作员交互步骤磁共振系统。

5. 发明申请

US20100198373A1 MAGNETIC RESONANCE SYSTEM AND METHOD FOR CONTROL THEREOF 有权
标题翻译：磁共振系统及其控制方法
公开(公告)号：US20100198373A1
公开(公告)日：2010-08-05
申请号：US12698292
申请日：2010-02-02
申请人： Christof Krellmann , Stefan Assmann , Andrea Hopf , Mike Mueller , Michaela Schmidt , Peter Speier
发明人： Christof Krellmann , Stefan Assmann , Andrea Hopf , Mike Mueller , Michaela Schmidt , Peter Speier
IPC分类号： G06F19/00 , G06F3/048 , G01R33/48
CPC分类号： A61B5/055 , G01R33/54 , G01R33/546
摘要： A method to control a magnetic resonance system includes at least one protocol step for measurement data acquisition with the magnetic resonance system, and at least one operator interaction step which allows an operator to enter information that affects at least one subsequent step in the control of the magnetic resonance system.
摘要翻译：控制磁共振系统的方法包括用于使用磁共振系统进行测量数据采集的至少一个协议步骤，以及允许操作者输入影响至少一个后续步骤的信息的至少一个操作员交互步骤磁共振系统。

6. 发明申请

US20100145182A1 METHOD TO CONTROL THE ACQUISITION OPERATION OF A MAGNETIC RESONANCE DEVICE IN THE ACQUISITION OF MAGNETIC RESONANCE DATA OF A PATIENT, AND ASSOCIATED MAGNETIC RESONANCE DEVICE 审中-公开
标题翻译：控制磁共振装置获取患者和相关磁共振装置的磁共振数据的获取操作的方法
公开(公告)号：US20100145182A1
公开(公告)日：2010-06-10
申请号：US12631084
申请日：2009-12-04
申请人： Michaela Schmidt , Peter Speier , Stefan Assmann , Sebastian Schmidt
发明人： Michaela Schmidt , Peter Speier , Stefan Assmann , Sebastian Schmidt
IPC分类号： A61B5/055 , G06Q50/00 , G06F3/048 , G01R33/48
CPC分类号： G01R33/546 , A61B5/055 , G01R33/543 , G06Q50/22
摘要： In a method to control the acquisition operation of a magnetic resonance device in the acquisition of magnetic resonance data of a patient, and associated magnetic resonance device, patient-related acquisition parameters are determined, technical control parameters are automatically determined taking into account the patient-related acquisition parameters, and the magnetic resonance device is controlled according to the control parameters.
摘要翻译：在控制磁共振装置在获取患者的磁共振数据和相关联的磁共振装置中的获取操作的方法中，确定与患者相关的获取参数，技术控制参数被自动确定，相关采集参数，并根据控制参数控制磁共振装置。

7. 发明申请

US20080205735A1 METHOD FOR GENERATION OF TEMPORALLY HIGH-RESOLUTION MR EXPOSURES 有权
标题翻译：用于产生临时高分辨率MR暴露的方法
公开(公告)号：US20080205735A1
公开(公告)日：2008-08-28
申请号：US12037218
申请日：2008-02-26
申请人： Sonia Nielles-Vallespin , Peter Schmitt , Peter Speier
发明人： Sonia Nielles-Vallespin , Peter Schmitt , Peter Speier
IPC分类号： G06K9/00
CPC分类号： G01R33/561 , A61B5/02007 , A61B5/055 , A61B5/7257 , G01R33/4824 , G01R33/563 , G01R33/5635 , G01R33/56509
摘要： In a method for generation of MR exposures in an MR system, a number of under-sampled MR raw data sets are acquired with non-constant density in k-space. A density compensation is implemented dependent on the geometry of the structure to be depicted. The under-sampled MR raw data sets are translated into a Cartesian coordinate system. Fourier transformation of the translated raw data sets in classical three-dimensional space ensues to generate under-sampled MR images. An averaged MR image is generated on the basis of a number of the under-sampled MR raw data sets. The MR exposures are produced by multiplication of the under-sampled MR images with the averaged MR image.
摘要翻译：在用于在MR系统中产生MR曝光的方法中，以k空间中的非恒定密度采集多个未被采样的MR原始数据集。根据要描绘的结构的几何形状实现密度补偿。未采样的MR原始数据集被转换为笛卡尔坐标系。经典三维空间中的经翻译的原始数据集的傅立叶变换导致生成未被采样的MR图像。基于未采样的MR原始数据集的数量生成平均MR图像。 MR曝光是通过将未采样的MR图像与平均MR图像相乘产生的。

8. 发明申请

US20070242866A1 METHOD AND MR SYSTEM FOR GENERATING MR IMAGES 有权
标题翻译：用于生成MR图像的方法和MR系统
公开(公告)号：US20070242866A1
公开(公告)日：2007-10-18
申请号：US11734906
申请日：2007-04-13
申请人： Peter Schmitt , Michael Wendt , Dieter Kleinschmidt , Peter Speier
发明人： Peter Schmitt , Michael Wendt , Dieter Kleinschmidt , Peter Speier
IPC分类号： G06K9/00
CPC分类号： G01R33/56308 , G01R33/4818 , G01R33/4822 , G01R33/4824 , G01R33/5608 , G01R33/561 , G01R33/5619
摘要： In a method and apparatus for generation of magnetic resonance images, a number of three-dimensional volume data sets of a subject are acquired in k-space, with each three-dimensional volume data set being acquired with a non-constant density. Filtered three-dimensional volume data sets are generated in k-space, which are assembled from a number of the three-dimensional volume data sets. Three-dimensional image data sets are reconstructed on the basis of filtered three-dimensional volume data sets.
摘要翻译：在用于产生磁共振图像的方法和装置中，以k空间获取对象的多个三维体数据集，其中每个三维体数据集以非恒定的密度获取。在k空间中生成滤过的三维体数据集，其由多个三维体数据集组装。在过滤的三维体数据集的基础上重构三维图像数据集。

9. 发明授权

US06859033B2 Method for magnetic resonance fluid characterization 有权
标题翻译：磁共振流体表征方法
公开(公告)号：US06859033B2
公开(公告)日：2005-02-22
申请号：US10064914
申请日：2002-08-28
申请人： Peter Speier
发明人： Peter Speier
IPC分类号： G01V3/32 , G01V3/00
CPC分类号： G01V3/32
摘要： A method for determining properties of a mixture of fluids includes: (a) acquiring a plurality of nuclear magnetic resonance measurements from the mixture of fluids, each of the plurality of nuclear magnetic resonance measurements having a different value in an acquisition parameter for which at least one relaxation selected from the group consisting of longitudinal relaxation and transverse relaxation affects magnitudes of the nuclear magnetic resonance measurements; (b) generating a model of the mixture of fluids; (c) calculating a synthesized nuclear magnetic data set based on the model; (d) comparing the synthesized nuclear magnetic data set with the nuclear magnetic resonance measurements; and (e) adjusting the model and repeating (c) and (d), if difference between the synthesized nuclear magnetic data set and the nuclear magnetic measurements is greater than a minimum.
摘要翻译：用于确定流体混合物的性质的方法包括：（a）从流体混合物中获取多个核磁共振测量值，所述多个核磁共振测量中的每一个在获取参数中具有不同的值，其至少至少选自纵向弛豫和横向弛豫的一个松弛影响核磁共振测量的大小; （b）产生流体混合物的模型; （c）基于该模型计算合成核磁数据集; （d）将合成的核磁数据集与核磁共振测量进行比较; 和（e）如果合成核磁数据集与核磁测量之间的差异大于最小值，则调整模型并重复（c）和（d）。

10. 发明授权

US06528995B1 Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same 有权
标题翻译：使用NMR测量井眼流速的方法和装置以及使用其的应用
公开(公告)号：US06528995B1
公开(公告)日：2003-03-04
申请号：US09951914
申请日：2001-09-10
申请人： Peter Speier , Julian Pop , Martin Poitzsch
发明人： Peter Speier , Julian Pop , Martin Poitzsch
IPC分类号： G01V300
CPC分类号： G01V3/32 , G01N24/081 , G01R33/563
摘要： The present invention provides met hods and apparatus for determining flow velocity within a formation utilizing nuclear magnetic resonance (NMR) techniques in which the shape of the resonance region is restricted so that sensitivity to radial flow or vertical flow is obtained (or both when more than one NMR tool is used). Flow velocity using these NMR tools is determined using decay amplitude, frequency displacement or stimulated echoes (where the spins are stored along the magnetic field instead of the transverse plane to exploit echo decays and frequency displacements) based on the application of adiabatic pulses. Based on the described NMR measurement of flow velocity, additional wellbore parameters may be obtained such as a direct measurement of permeability, an assessment of drilling damage to the wellbore, formation pressure, invasion rate of the mud filtrate or the migration of fine mud particles during sampling operations.
摘要翻译：本发明提供了使用核磁共振（NMR）技术确定地层内的流速的测井仪和设备，其中共振区域的形状受到限制，以便获得对径向流动或垂直流动的敏感性（或当超过使用一个NMR工具）。基于绝热脉冲的应用，使用衰减幅度，频率位移或受激回波（其中旋转沿着磁场而不是横向平面存储以利用回波衰减和频率位移）来确定使用这些NMR工具的流速。基于所描述的流速的NMR测量，可以获得额外的井眼参数，例如直接测量渗透率，评估钻井对井眼的破坏，地层压力，泥浆滤液的侵入速率或细泥浆颗粒的迁移采样作业。

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