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1.发明申请公开(公告)号：US20120326721A1
公开(公告)日：2012-12-27
申请号：US13582800
申请日：2011-03-10
CPC分类号： G01R33/50 , G01R33/5601 , G01R33/5613 , G01R33/5616
摘要： The invention relates to a magnetic resonance imaging method for simultaneous and dynamic determination of a longitudinal relaxation time T1 and a transversal relaxation time T2 of the nuclear spin system of an object, in the context of DCE or DSE MRI. In this respect, the invention makes use of a steady-state gradient echo pulse sequence comprising an EPI readout module.
摘要翻译： 本发明涉及一种用于在DCE或DSE MRI的背景下同时和动态地确定物体的核自旋系统的纵向弛豫时间T1和横向弛豫时间T2的磁共振成像方法。 在这方面，本发明利用包括EPI读出模块的稳态梯度回波脉冲序列。
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2.发明授权公开(公告)号：US09588205B2
公开(公告)日：2017-03-07
申请号：US13582800
申请日：2011-03-10
IPC分类号： G01R33/50 , G01R33/56 , G01R33/561
CPC分类号： G01R33/50 , G01R33/5601 , G01R33/5613 , G01R33/5616
摘要： The invention relates to a magnetic resonance imaging method for simultaneous and dynamic determination of a longitudinal relaxation time T1 and a transversal relaxation time T2 of the nuclear spin system of an object, in the context of DCE or DSE MRI. In this respect, the invention makes use of a steady-state gradient echo pulse sequence comprising an EPI readout module.
摘要翻译： 本发明涉及一种用于在DCE或DSE MRI的背景下同时和动态地确定物体的核自旋系统的纵向弛豫时间T1和横向弛豫时间T2的磁共振成像方法。 在这方面，本发明利用包括EPI读出模块的稳态梯度回波脉冲序列。
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公开(公告)号：US09507000B2
公开(公告)日：2016-11-29
申请号：US13123128
申请日：2009-10-05
申请人： Christian Stehning , Jurgen Erwin Rahmer , Stefanie Remmele , Ulrike Blume , Tobias Richard Schaeffter
发明人： Christian Stehning , Jurgen Erwin Rahmer , Stefanie Remmele , Ulrike Blume , Tobias Richard Schaeffter
CPC分类号： G01R33/50 , A61B5/055 , G01R33/4828 , G01R33/5602
摘要： A magnetic resonance system comprises a magnetic resonance scanner (10) including a main magnet (12) generating a static magnetic field biasing nuclear spins toward aligning along a direction of the static magnetic field, magnetic field gradient coils (14), a radio frequency coil (16), and a controller (20, 22) configured to: (a) drive the radio frequency coil to selectively tip spins predominantly of short T2* out of the direction of the static magnetic field; (b) drive at least one of the magnetic field gradient coils and the radio frequency coil to dephase said spins predominantly of short T2* tipped out of the direction of the static magnetic field; and (c) drive the magnetic field gradient coils and the radio frequency coil to acquire magnetic resonance data that is predominantly T2* weighted due to preceding operations (a) and (b).
摘要翻译： 磁共振系统包括磁共振扫描器（10），该磁共振扫描器（10）包括主磁体（12），该主磁体产生静磁场，该静磁场偏置核自旋以沿着静磁场的方向排列，磁场梯度线圈（14），射频线圈 （16），以及控制器（20,22），其被配置为：（a）驱动所述射频线圈以选择性地从所述静态磁场的方向上引导主要具有短T2 *的自旋; （b）驱动所述磁场梯度线圈和所述射频线圈中的至少一个，以使所述自旋以主要从所述静态磁场方向倾斜的短T2 *去除; 和（c）驱动磁场梯度线圈和射频线圈以获得由于先前操作（a）和（b）而主要为T2 *加权的磁共振数据。
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4.发明申请MAGNETIC RESONANCE IMAGING SYSTEM, COMPUTER SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR SENDING CONTROL MESSAGES TO AN ANESTHESIA SYSTEM 审中-公开磁共振成像系统，计算机系统和计算机程序产品，用于向ANESTHESIA系统发送控制消息公开(公告)号：US20130225978A1
公开(公告)日：2013-08-29
申请号：US13819097
申请日：2011-08-24
CPC分类号： G01R33/5608 , A61B5/055 , A61M16/01 , A61M16/024 , A61M16/104 , A61M2016/102 , A61M2016/1025 , A61M2016/103 , A61M2205/057 , A61M2230/005 , A61M2230/43 , A61M2230/432 , A61M2230/435 , G01R33/30 , G01R33/5601 , G01R33/56366
摘要： A magnetic resonance imaging system (500) comprising: a magnet (502) for generating a magnetic field; a radio frequency system (516) for acquiring magnetic resonance data; a magnetic field gradient coil (510) for spatial encoding of the magnetic spins of nuclei within the imaging volume; a magnetic field gradient coil power supply (512) for supplying current to the magnetic field gradient coil; an anesthesia system interface (532) for sending control messages to an anesthesia system (524) for controlling the delivery of inhalation gases to a subject and a computer system comprising a processor (534) and a memory (538, 540), wherein the memory contains instructions (542, 544, 546, 548, 550, 552) for execution by the processor, wherein execution of the instructions causes the processor to: control (100, 200, 300, 400) the operation of the magnetic resonance imaging system to acquire magnetic resonance data, and to send (102, 202, 302, 402) control messages to the anesthesia system via the anesthesia system interface.
摘要翻译： 一种磁共振成像系统（500），包括：用于产生磁场的磁体（502）; 射频系统（516），用于获取磁共振数据; 磁场梯度线圈（510），用于对所述成像体积内的核的磁旋转进行空间编码; 用于向磁场梯度线圈提供电流的磁场梯度线圈电源（512）; 麻醉系统接口（532），用于将控制消息发送到麻醉系统（524），用于控制向对象输送吸入气体;以及计算机系统，包括处理器（534）和存储器（538,540），其中所述存储器 包含用于由处理器执行的指令（542,544,546,548,550,552），其中所述指令的执行使得所述处理器将所述磁共振成像系统的操作（100,200,300,400）控制为 获取磁共振数据，并通过麻醉系统接口将（102,202,302,402）控制消息发送到麻醉系统。
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5.发明申请RF ANTENNA ARRANGEMENT AND METHOD FOR MULTI NUCLEI MR IMAGE RECONSTRUCTION INVOLVING PARALLEL MRI 有权涉及并行MRI的多核MR图像重构的RF天线布置方法公开(公告)号：US20120308111A1
公开(公告)日：2012-12-06
申请号：US13576742
申请日：2011-02-04
CPC分类号： G01R33/3635 , G01R33/3415 , G01R33/4828 , G01R33/5611
摘要： A multi nuclei RF antenna arrangement for use in a multi nuclei MRI system or an MR scanner, for transmitting RF excitation signals (B1 field) for exciting nuclear magnetic resonances (NMR), and/or for receiving NMR relaxation signals for multi nuclei MR (magnetic resonance) image reconstruction is disclosed, wherein the RF antenna arrangement is tuned to the Larmor frequencies of at least two different species of nuclei having at least two different gyromagnetic rations like 23Na, 39K, 17O and hyper polarized gases like 129Xe or other isotopes having a nuclear spin. Further, a method for reconstructing a multi nuclei MR image especially by means of the above RF antenna arrangement is disclosed. The method involves reducing back-folding artifacts of the species having the higher gyromagnetic ration by parallel MRI reconstruction.
摘要翻译： 用于多核MRI系统或MR扫描器的多核RF天线装置，用于发射用于激发核磁共振（NMR）的RF激励信号（B1场）和/或用于接收多核MR的NMR松弛信号（ 磁共振）图像重建，其中RF天线布置被调谐到具有至少两个不同类型的核的Larmor频率，其具有至少两个不同的回旋磁性比例，如23Na，39K，17O和超极化气体，如129Xe或其他同位素， 一个核旋转。 此外，公开了一种用于重建多核MR图像的方法，特别是通过上述RF天线布置。 该方法涉及通过平行MRI重建来减少具有较高回旋磁性比例的物种的折叠假象。
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6.发明申请Motion-Dependent Data Acquisition in Magnetic Resonance Imaging and Spectroscopy 审中-公开运动相关数据采集在磁共振成像和光谱学公开(公告)号：US20080309333A1
公开(公告)日：2008-12-18
申请号：US12097550
申请日：2006-12-19
申请人： Christian Stehning , Peter Boernert
发明人： Christian Stehning , Peter Boernert
IPC分类号： G01R33/54
CPC分类号： A61B5/055 , A61B5/7207 , A61B5/721 , A61B5/7292 , G01R33/288 , G01R33/543 , G01R33/5613 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： The invention relates to a magnetic resonance (MR) system for acquiring MR data from a subject (105), the MR system comprising a monitoring module (117) for monitoring a characteristic of a motion of the subject, the characteristic of the motion having a pre-determined or dynamically adjusted limit (119), and a pulse sequencer (108) for applying a pulse sequence to acquire data from the subject (105) when the characteristic of the motion is within the limit (119), the pulse sequence comprising at least one pulse waveform, wherein the pulse sequencer (108) is further arranged to regulate a characteristic of the at least one pulse waveform when the characteristic of the motion surpasses the limit (119).
摘要翻译： 本发明涉及一种用于从对象（105）获取MR数据的磁共振（MR）系统，该MR系统包括用于监视被摄体的运动特征的监视模块（117），该运动的特征具有 预定或动态调整的限制（119），以及脉冲序列器（108），用于当运动的特性在极限（119）内时，施加脉冲序列以从对象（105）获取数据，脉冲序列包括 至少一个脉冲波形，其中所述脉冲定序器（108）进一步布置成当所述运动的特性超过极限（119）时调节所述至少一个脉搏波形的特性。
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公开(公告)号：US20140035582A1
公开(公告)日：2014-02-06
申请号：US14112253
申请日：2012-04-11
IPC分类号： G01R33/565
CPC分类号： G01R33/565 , G01R33/5611 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： A magnetic resonance imaging method includes acquisition of datasets of magnetic resonance data from an object. At least some of the datasets are undersampled in k-space. Each dataset relating to a motion state of the object. Images are reconstructed from each of the datasets by way of a compressed sensing reconstruction. Motion correction is applied to the reconstructed images relative to a selected motion state, so as to generate motion corrected images. A diagnostic image for the selected motion state is derived, e.g. by averaging from the motion corrected images.
摘要翻译： 磁共振成像方法包括从对象获取磁共振数据的数据集。 至少有一些数据集在k空间中欠采样。 每个与物体运动状态相关的数据集。 通过压缩感测重构，从每个数据集重建图像。 运动校正被应用于相对于所选运动状态的重建图像，以便产生运动校正图像。 导出所选运动状态的诊断图像，例如， 通过运动校正图像的平均值。
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8.发明授权RF antenna arrangement and method for multi nuclei MR image reconstruction involving parallel MRI 有权射频天线装置和多核MR图像重建涉及并行MRI的方法公开(公告)号：US08929626B2
公开(公告)日：2015-01-06
申请号：US13576742
申请日：2011-02-04
IPC分类号： G06K9/00 , G01R33/36 , G01R33/3415 , G01R33/48 , G01R33/561
CPC分类号： G01R33/3635 , G01R33/3415 , G01R33/4828 , G01R33/5611
摘要： A multi nuclei RF antenna arrangement for use in a multi nuclei MRI system or an MR scanner, for transmitting RF excitation signals (B1 field) for exciting nuclear magnetic resonances (NMR), and/or for receiving NMR relaxation signals for multi nuclei MR (magnetic resonance) image reconstruction is disclosed, wherein the RF antenna arrangement is tuned to the Larmor frequencies of at least two different species of nuclei having at least two different gyromagnetic rations like 1H, 14N, 31P, 13C, 23Na, 39K, 17O and hyper polarized gases like 129Xe or other isotopes having a nuclear spin. Further, a method for reconstructing a multi nuclei MR image especially by means of the above RF antenna arrangement is disclosed. The method involves reducing back-folding artifacts of the species having the higher gyromagnetic ration by parallel MRI reconstruction.
摘要翻译： 用于多核MRI系统或MR扫描器的多核RF天线装置，用于发射用于激发核磁共振（NMR）的RF激励信号（B1场）和/或用于接收多核MR的NMR松弛信号（ 磁共振）图像重建，其中RF天线布置被调谐到具有至少两个不同回旋磁性比例的至少两种不同种类的Larmor频率，如1H，14N，31P，13C，23Na，39K，17O和超 具有129Xe的极化气体或具有核旋转的其它同位素。 此外，公开了一种用于重建多核MR图像的方法，特别是通过上述RF天线布置。 该方法涉及通过平行MRI重建来减少具有较高回旋磁性比例的物种的折叠假象。
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公开(公告)号：US10073160B2
公开(公告)日：2018-09-11
申请号：US14112253
申请日：2012-04-11
IPC分类号： G01V3/00 , G01R33/565 , G01R33/561 , G01R33/567
CPC分类号： G01R33/565 , G01R33/5611 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： A magnetic resonance imaging method includes acquisition of datasets of magnetic resonance data from an object. At least some of the datasets are undersampled in k-space. Each dataset relating to a motion state of the object. Images are reconstructed from each of the datasets by way of a compressed sensing reconstruction. Motion correction is applied to the reconstructed images relative to a selected motion state, so as to generate motion corrected images. A diagnostic image for the selected motion state is derived, e.g. by averaging from the motion corrected images.
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10.发明申请MOTION MONITORING SYSTEM FOR MONITORING MOTION WITHIN A REGION OF INTEREST 审中-公开运动监测系统，用于监测运动区域内的运动公开(公告)号：US20120169333A1
公开(公告)日：2012-07-05
申请号：US13394566
申请日：2010-08-16
IPC分类号： G01R33/025
CPC分类号： G06T7/246 , G06T2207/10072 , G06T2207/30048
摘要： The invention relates to a motion monitoring system (1) for monitoring motion within a region of interest (2). The motion monitoring system (1) comprises a magnetic induction tomography detection data acquisition unit (3) for acquiring MIT detection data of the region of interest (2), and a motion determining unit (4) for determining motion within the region of interest (2) based on the acquired MIT detection data. The invention relates further to an imaging system for imaging a region of interest comprising the motion monitoring system (1). The determined motion can be used for reducing motion artifacts in reconstructed images.
摘要翻译： 本发明涉及一种用于监视感兴趣区域（2）内的运动的运动监视系统（1）。 运动监视系统（1）包括用于获取感兴趣区域（2）的MIT检测数据的磁感应断层摄影检测数据获取单元（3）和用于确定感兴趣区域内的运动的运动确定单元（4） 2）基于所获得的MIT检测数据。 本发明进一步涉及用于对包括运动监视系统（1）的兴趣区域进行成像的成像系统。 所确定的运动可用于减少重建图像中的运动伪影。
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