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1. 发明申请

US20170123030A1 Gesture-Controlled MR Imaging System and Method 审中-公开
公开(公告)号：US20170123030A1
公开(公告)日：2017-05-04
申请号：US14924843
申请日：2015-10-28
申请人： Siemens Healthcare GmbH , Johns Hopkins University
发明人： Arne Hengerer , Eva Rothgang , Lars Lauer , Jonathan Lewin , Wesley David Gilson , Jan Fritz , Clifford R. Weiss , Katarzyna J. Macura , Paul A. Bottomley
IPC分类号： G01R33/54 , G06K9/00 , G01R33/28 , G06F3/01
CPC分类号： G01R33/283 , G01R33/546 , G06F3/017 , G06K9/00355
摘要： A magnetic resonance imaging system and method are provided that include user control of certain functions using physical gestures, such as hand motions or the like. The gesture control aspects can include one or more cameras, and a processor configured to detect and recognize gestures corresponding to predetermined commands and to provide signals to execute the commands. A verification switch, such as a foot switch, can be included to improve safety and reliability of the gesture control aspects. This switch can be used to activate the gesture detection aspects and/or to confirm a recognized gesture command prior to its execution.

2. 发明授权

US10180469B2 Gesture-controlled MR imaging system and method 有权
公开(公告)号：US10180469B2
公开(公告)日：2019-01-15
申请号：US14924843
申请日：2015-10-28
申请人： Siemens Healthcare GmbH , Johns Hopkins University
发明人： Arne Hengerer , Eva Rothgang , Lars Lauer , Jonathan Lewin , Wesley David Gilson , Jan Fritz , Clifford R. Weiss , Katarzyna J. Macura , Paul A. Bottomley
IPC分类号： G01R33/54 , G06K9/00 , G01R33/28 , G06F3/01
摘要： A magnetic resonance imaging system and method are provided that include user control of certain functions using physical gestures, such as hand motions or the like. The gesture control aspects can include one or more cameras, and a processor configured to detect and recognize gestures corresponding to predetermined commands and to provide signals to execute the commands. A verification switch, such as a foot switch, can be included to improve safety and reliability of the gesture control aspects. This switch can be used to activate the gesture detection aspects and/or to confirm a recognized gesture command prior to its execution.

3. 发明授权

US10120049B2 System and method of obtaining spatially-encoded NMR parameters from arbitrarily-shaped compartments and linear algebraic modeling 有权
公开(公告)号：US10120049B2
公开(公告)日：2018-11-06
申请号：US14715367
申请日：2015-05-18
申请人： The Johns Hopkins University
发明人： Yi Zhang , Jinyuan Zhou , Paul A. Bottomley
IPC分类号： G01V3/00 , G01R33/483 , G01R33/485 , G01R33/50 , G01R33/56 , G01R33/563 , G01R33/561
摘要： An NMR method and system for acquiring and reconstructing a value of an NMR parameter spatially localized to a compartment of interest including performing a first MM of a portion of a sample with a first MRI pulse sequence using the NMR system and using a set of k-space spatial encoding gradients or coil sensitivity encoding maps to obtain a first magnetic resonance image to identify a compartment of interest; generating a second MRI pulse sequence that encodes the NMR parameter with a subset of the set of k-space spatial encoding gradients or the coil sensitivity encoding maps; applying the second MRI pulse sequence using the NMR system to acquire spatial information relating to the NMR parameter from the compartment of interest; segmenting the first magnetic resonance image into a plurality of compartments that includes the compartment of interest; and reconstructing a value of the NMR parameter in the compartment.

4. 发明授权

US10908235B2 Method of fast imaging of NMR parameters with variably-accelerated sensitivity encoding 有权
公开(公告)号：US10908235B2
公开(公告)日：2021-02-02
申请号：US16091785
申请日：2017-04-07
申请人： The Johns Hopkins University
发明人： Yi Zhang , Jinyuan Zhou , Paul A. Bottomley
IPC分类号： G01R33/24 , G01R33/561 , G01R33/48 , G01R33/50 , G01R33/56 , G01R33/563
摘要： A method of spatially imaging a nuclear magnetic resonance (NMR)parameter whose measurement requires the acquisition of spatially localized NMR signals in a sample includes placing the sample in an MRI apparatus with a plurality of MRI detectors each having a spatial sensitivity map; and applying MRI sequences adjusted to be sensitive to the NMR parameter. At least one of the MRI sequences is adjusted so as to substantially fully sample an image k-space of the sample. The remainder of the MRI sequences is adjusted to under-sample the image k-space. The method further includes acquiring image k-space NMR signal datasets; estimating a sensitivity map of each of the MRI detectors using a strategy to suppress unfolding artefacts; and applying the estimated sensitivity maps to at least one of the image k-space NMR signal data sets to reconstruct a spatial image of NMR signals that are sensitive to the NMR parameter.

5. 发明申请

US20130141096A1 SYSTEMS AND METHODS FOR MEASURING NUCLEAR MAGNETIC RESONANCE SPIN-LATTICE RELAXATION TIME T1 AND SPIN-SPIN RELAXATION TIME T2 有权
标题翻译：用于测量核磁共振旋转弛豫时间T1和旋转松弛时间T2的系统和方法
公开(公告)号：US20130141096A1
公开(公告)日：2013-06-06
申请号：US13692726
申请日：2012-12-03
申请人： The Johns Hopkins University
发明人： Paul A. Bottomley , Guan Wang , Abdel-monem M. EI-Sharkawy
IPC分类号： G01R33/50 , G01R33/54
CPC分类号： G01R33/50 , G01R33/54
摘要： A system for measuring nuclear magnetic resonance spin-lattice relaxation time T1 and spin-spin relaxation time T2 of a sample includes a source of a substantially uniform magnetic field B0 for immersing at least a portion of the sample; a nuclear magnetic resonance excitation and detection system constructed and arranged to excite at least a portion of the sample with a plurality of nuclear magnetic resonance pulse sequences, each applied with a repetition time that is preselected to be sensitive to a T1 value of at least a portion of the sample, and to detect nuclear magnetic resonance emissions from the sample in response to excitations to provide a plurality of detection signals; and a signal processing system configured to communicate with the nuclear magnetic resonance excitation and detection system to receive the plurality of detection signals.
摘要翻译：用于测量样品的核磁共振自旋 - 晶格弛豫时间T1和自旋 - 自旋弛豫时间T2的系统包括用于浸入至少一部分样品的基本上均匀的磁场B0的源; 核磁共振激励和检测系统，其被构造和布置成用多个核磁共振脉冲序列激励至少一部分样品，每个核磁共振脉冲序列被预先选择为对至少一个并且响应于激发来检测来自样品的核磁共振发射以提供多个检测信号; 以及信号处理系统，被配置为与所述核磁共振激励和检测系统通信以接收所述多个检测信号。

6. 发明授权

US09494668B2 Systems and methods for measuring nuclear magnetic resonance spin-lattice relaxation time T1 and spin-spin relaxation time T2 有权
标题翻译：用于测量核磁共振自旋晶格弛豫时间T1和自旋自旋弛豫时间T2的系统和方法
公开(公告)号：US09494668B2
公开(公告)日：2016-11-15
申请号：US13692726
申请日：2012-12-03
申请人： The Johns Hopkins University
发明人： Paul A. Bottomley , Guan Wang , Abdel-Monem M. El-Sharkawy
IPC分类号： G01V3/00 , G01R33/50 , G01R33/54
CPC分类号： G01R33/50 , G01R33/54
摘要： A system for measuring nuclear magnetic resonance spin-lattice relaxation time T1 and spin-spin relaxation time T2 of a sample includes a source of a substantially uniform magnetic field B0 for immersing at least a portion of the sample; a nuclear magnetic resonance excitation and detection system constructed and arranged to excite at least a portion of the sample with a plurality of nuclear magnetic resonance pulse sequences, each applied with a repetition time that is preselected to be sensitive to a T1 value of at least a portion of the sample, and to detect nuclear magnetic resonance emissions from the sample in response to excitations to provide a plurality of detection signals; and a signal processing system configured to communicate with the nuclear magnetic resonance excitation and detection system to receive the plurality of detection signals.
摘要翻译：用于测量样品的核磁共振自旋 - 晶格弛豫时间T1和自旋 - 自旋弛豫时间T2的系统包括用于浸入至少一部分样品的基本上均匀的磁场B0的源; 核磁共振激励和检测系统，其被构造和布置成用多个核磁共振脉冲序列激励至少一部分样品，每个核磁共振脉冲序列被预先选择为对至少一个并且响应于激发来检测来自样品的核磁共振发射以提供多个检测信号; 以及信号处理系统，被配置为与所述核磁共振激励和检测系统通信以接收所述多个检测信号。

7. 发明申请

US20160341808A1 SYSTEM AND METHOD OF OBTAINING SPATIALLY-ENCODED NMR PARAMETERS FROM ARBITRARILY-SHAPED COMPARTMENTS AND LINEAR ALGEBRAIC MODELING 审中-公开
标题翻译：从ARBITRARILY形状空间和线性代数建模获得空间编码的核磁共振参数的系统和方法
公开(公告)号：US20160341808A1
公开(公告)日：2016-11-24
申请号：US14715367
申请日：2015-05-18
申请人： The Johns Hopkins University
发明人： Yi Zhang , Jinyuan Zhou , Paul A. Bottomley
IPC分类号： G01R33/54 , G01R33/48
CPC分类号： G01R33/483 , G01R33/485 , G01R33/50 , G01R33/5605 , G01R33/5611 , G01R33/56341 , G01R33/56366
摘要： An NMR method and system for acquiring and reconstructing a value of an NMR parameter spatially localized to a compartment of interest including performing a first MM of a portion of a sample with a first MRI pulse sequence using the NMR system and using a set of k-space spatial encoding gradients or coil sensitivity encoding maps to obtain a first magnetic resonance image to identify a compartment of interest; generating a second MRI pulse sequence that encodes the NMR parameter with a subset of the set of k-space spatial encoding gradients or the coil sensitivity encoding maps; applying the second MRI pulse sequence using the NMR system to acquire spatial information relating to the NMR parameter from the compartment of interest; segmenting the first magnetic resonance image into a plurality of compartments that includes the compartment of interest; and reconstructing a value of the NMR parameter in the compartment.
摘要翻译：用于获取和重建空间上定位于感兴趣区室的NMR参数的值的NMR方法和系统，包括使用NMR系统以第一MRI脉冲序列执行样品的一部分的第一MM，并使用一组k- 空间空间编码梯度或线圈灵敏度编码图，以获得第一磁共振图像以识别感兴趣的隔室; 产生用所述一组k空间空间编码梯度或线圈灵敏度编码图的子集编码NMR参数的第二MRI脉冲序列; 使用NMR系统应用第二MRI脉冲序列以从感兴趣的隔室获取与NMR参数相关的空间信息; 将第一磁共振图像分割成包括感兴趣的隔室的多个隔间; 并重建隔室中NMR参数的值。

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