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1. 发明申请

WO2009112987A1 COIL SELECTION FOR PARALLEL MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：并联磁共振成像的线圈选择
公开(公告)号：WO2009112987A1
公开(公告)日：2009-09-17
申请号：PCT/IB2009/050925
申请日：2009-03-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , JURRISSEN, Michel, P., J. , BOERNERT, Peter , DONEVA, Mariya, I. , FUDERER, Miha
发明人： JURRISSEN, Michel, P., J. , BOERNERT, Peter , DONEVA, Mariya, I. , FUDERER, Miha
IPC分类号： G01R33/561 , G01R33/3415
CPC分类号： G01R33/022 , G01R33/3415 , G01R33/3664 , G01R33/543 , G01R33/5611 , G01R33/5659
摘要： The invention relates to a method of selecting a set of coil elements from a multitude of physical coil elements comprised in a coil array for performing a magnetic resonance imaging scan of a region of interest.
摘要翻译：本发明涉及从包括在线圈阵列中的多个物理线圈元件中选择一组线圈元件的方法，用于执行感兴趣区域的磁共振成像扫描。

2. 发明申请

WO2006003553A1 PARALLEL MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：并行磁共振成像
公开(公告)号：WO2006003553A1
公开(公告)日：2006-01-12
申请号：PCT/IB2005/052053
申请日：2005-06-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JURRISSEN, Michel, P., J. , FUDERER, Miha
发明人： JURRISSEN, Michel, P., J. , FUDERER, Miha
IPC分类号： G01R33/561
CPC分类号： G01R33/5611
摘要： The invention relates to a device (1) for magnetic resonance imaging of a body (7) placed in a stationary and substantially homogeneous main magnetic field. In order to provide an MR device (1) which is arranged to automatically select an optimum subsampling scheme for three-dimensional SENSE, the invention proposes to select the subsampling scheme such that the maximum number of folded-over image values is minimized and simultaneously distances between the positions of the folded-over image values within the predetermined field of view are maximized.
摘要翻译：本发明涉及一种用于主体（7）的磁共振成像的装置（1），其放置在静止且基本均匀的主磁场中。为了提供一种被设置为自动选择用于三维SENSE的最佳子采样方案的MR设备（1），本发明提出选择子采样方案，使得折叠图像值的最大数目最小化，同时距离在预定视野内的折叠图像值的位置之间最大化。

3. 发明申请

WO2005078470A2 MAGNETIC RESONANCE IMAGING METHOD 审中-公开
标题翻译：磁共振成像方法
公开(公告)号：WO2005078470A2
公开(公告)日：2005-08-25
申请号：PCT/IB2005/050458
申请日：2005-02-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FUDERER, Miha , EGGERS, Holger
发明人： FUDERER, Miha , EGGERS, Holger
IPC分类号： G01R33/561
CPC分类号： G01R33/5611
摘要： A novel magnetic resonance imaging method and apparatus is described wherein an image is derived from sub-sampled magnetic resonance signals and on the basis of the spatial sensitivity profile of each receiving antenna. A sequence of RF-pulses and gradients is applied, which sequence corresponds to a set of trajectories containing at least one substantially non-linear trajectory in k-space, wherein the density of said trajectory set being substantially lower than the density corresponding to the object size. Each signal along said trajectory set is sampled at least at two different receiver antenna positions. The image is reconstructed by converting the data of said signals to a Cartesian grid by convolution with a gridding kernel, whereby the gridding kernel is specific for each antenna, differs between one region and another in k-space, and is a Fourier-transform of a pattern weighted for each antenna with respect to the Cartesian grid.
摘要翻译：描述了一种新颖的磁共振成像方法和装置，其中根据次采样的磁共振信号并基于每个接收天线的空间灵敏度分布导出图像。应用RF脉冲和梯度的序列，该序列对应于在k空间中包含至少一个基本非线性轨迹的一组轨迹，其中所述轨迹集的密度基本上低于对应于物体的密度尺寸。至少在两个不同的接收机天线位置对沿着所述轨迹组的每个信号进行采样。通过与网格内核卷积将所述信号的数据转换为笛卡尔网格来重建图像，由此网格核对于每个天线是特定的，在k空间中在一个区域和另一个区域之间是不同的，并且是傅立叶变换对于每个天线相对于笛卡尔网格加权的图案。

4. 发明申请

WO2011080693A1 WATER -FAT SEPARATION IN MRI USING PARTIAL ECHOES AT DIFFERENT ECHO TIMES 审中-公开
标题翻译：在不同的ECHO时期使用部分ECHO的MRI中的水分离
公开(公告)号：WO2011080693A1
公开(公告)日：2011-07-07
申请号：PCT/IB2010/056083
申请日：2010-12-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FUDERER, Miha , EGGERS, Holger
发明人： FUDERER, Miha , EGGERS, Holger
IPC分类号： G01R33/54
CPC分类号： G01R33/4828
摘要： The invention relates to a method of imaging at least two chemical species using magnetic resonance imaging with signal separation for the at least two chemical species, the method comprising: acquiring dual partial echoes (204, 210, 406, 408, 502, 506, 10, 612) at different echo times, wherein the partial echoes at the respective echo times are located in opposite regions of k- space, processing the partial echoes for reconstruction of a first and second image data set, the first and second image data set comprising separate image data of the first and second chemical species.
摘要翻译：本发明涉及使用具有用于至少两种化学物质的信号分离的磁共振成像来成像至少两种化学物质的方法，所述方法包括：获取双重部分回波（204,210,406,408,502,506,10 ，612），其中在相应回波时间的部分回波位于k空间的相反区域中，处理用于重构第一和第二图像数据集的部分回波，第一和第二图像数据组包括分离第一和第二化学物质的图像数据。

5. 发明申请

WO2011039692A2 MR IMAGING USING MULTI-CHANNEL RF EXCITATION 审中-公开
标题翻译： MR成像使用多通道RF激励
公开(公告)号：WO2011039692A2
公开(公告)日：2011-04-07
申请号：PCT/IB2010/054339
申请日：2010-09-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FUDERER, Miha , ROZIJN, Thomas, Hendrik , KATSCHER, Ulrich , NEHRKE, Kay , HARVEY, Paul, Royston
发明人： FUDERER, Miha , ROZIJN, Thomas, Hendrik , KATSCHER, Ulrich , NEHRKE, Kay , HARVEY, Paul, Royston
CPC分类号： G01R33/5612 , G01R33/246 , G01R33/5659
摘要： The invention relates to a magnetic resonance imaging apparatus comprising an array of two or more RF antennas(9) for transmitting RF pulses to and receiving MR signals from a body(7) of a patient positioned in an examination volume (2), the RF antennas (9) having spatial transmit and receive sensitivity profiles. The apparatus is arranged to: -control the temporal succession, the phase, and the amplitude of the RF feeding of each individual RF antenna (9), the phases and amplitudes being determined from the spatial transmit sensitivity profiles of the RF antennas(9), and -reconstruct a MR image from a combination of the received MR signals received via the individual RF antennas(9) and from the spatial receive sensitivity profiles of the RF antennas(9). The invention proposes that the apparatus is further arranged to: -determine the spatial transmit sensitivity profiles of the RF antennas (9) from the spatial receive sensitivity profiles of the RF antennas (9), or -determine the spatial receive sensitivity profiles of the RF antennas (9) from the spatial transmit sensitivity profiles of the RF antennas (9).
摘要翻译：磁共振成像装置技术领域本发明涉及一种磁共振成像设备，其包括用于将RF脉冲发射到患者身体（7）并从患者身体（7）接收MR信号的两个或更多个RF天线（9）的阵列，检查体积（2），所述RF天线（9）具有空间发射和接收灵敏度分布。该设备被布置为： - 控制每个单独的RF天线（9）的RF馈送的时间顺序，相位和幅度，相位和幅度根据RF天线（9）的空间发射灵敏度曲线确定，并且 - 从经由各个RF天线（9）接收到的MR信号的组合以及从RF天线（9）的空间接收灵敏度简档中重建MR图像。本发明提出，该设备还被布置为： - 根据RF天线（9）的空间接收灵敏度分布来确定RF天线（9）的空间发射灵敏度分布，或者 - 确定RF 天线（9）与RF天线（9）的空间发射灵敏度分布相匹配。

6. 发明申请

WO2010109394A1 MR IMAGING USING PARALLEL SIGNAL ACQUISITION 审中-公开
标题翻译：使用并行信号获取的成像
公开(公告)号：WO2010109394A1
公开(公告)日：2010-09-30
申请号：PCT/IB2010/051217
申请日：2010-03-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , FUDERER, Miha , PEETERS, Johannes, M. , ROZIJN, Thomas, H. , DUIJNDAM, Adrianus, J., W. , JURRISSEN, Michel, P., J. , BENSCHOP, Franciscus, J., M.
发明人： FUDERER, Miha , PEETERS, Johannes, M. , ROZIJN, Thomas, H. , DUIJNDAM, Adrianus, J., W. , JURRISSEN, Michel, P., J. , BENSCHOP, Franciscus, J., M.
IPC分类号： G01R33/561
CPC分类号： G01R33/5611 , G01R33/543
摘要： The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient placed in an examination volume of an MR device (1). The object of the invention is to provide an improved, i.e. faster, parallel imaging technique. The invention proposes to acquire a survey signal data set (21, 22) at a low image resolution, which survey signal data set (21, 22) includes MR signals received in parallel or successively via a volume RF coil (9) and via a set of array RF coils (11, 12, 13). Spatial sensitivity profiles (23) of the array RF coils (11, 12, 13) are determined from the low resolution data. As a next step, a reference scan is performed in which a reference signal data set (25) is acquired at intermediate resolution solely via the array RF coils (11, 12, 13). The spatial sensitivity profiles (27) of the array RF coils (11, 12, 13) are determined from the data acquired at intermediate resolution and from the spatial sensitivity profiles (23) determined before at low resolution. Finally, a diagnostic scan is performed, in which a diagnostic signal data set (29) is acquired in parallel via the array RF coils (11, 12, 13) at high resolution. The diagnostic signal data set (29) may be acquired in a sub-sampled fashion. A diagnostic MR image (30) is then reconstructed from the diagnostic signal data set (29) and from the spatial sensitivity profiles (27) determined at the intermediate resolution, for example by using the SENSE or SMASH algorithm.
摘要翻译：本发明涉及放置在MR装置（1）的检查体积中的患者的身体（10）的至少一部分的MR成像方法。本发明的目的是提供一种改进的，即更快的并行成像技术。本发明提出以低图像分辨率获取测量信号数据集（21,22），该测量信号数据集（21,22）包括并行或连续经由体积RF线圈（9）接收的MR信号，并且经由阵列RF线圈组（11,12,13）。从低分辨率数据确定阵列RF线圈（11,12,13）的空间灵敏度分布（23）。作为下一步，执行参考扫描，其中仅通过阵列RF线圈（11,12,13）以中间分辨率获取参考信号数据组（25）。阵列RF线圈（11,12,13）的空间灵敏度分布（27）由在中间分辨率下获得的数据和从低分辨率之前确定的空间灵敏度分布（23）确定。最后，执行诊断扫描，其中以高分辨率经由阵列RF线圈（11,12,13）并行获取诊断信号数据组（29）。可以以亚采样的方式获取诊断信号数据集（29）。然后，例如通过使用SENSE或SMASH算法，从诊断信号数据集（29）和从中间分辨率确定的空间灵敏度分布（27）重构诊断MR图像（30）。

7. 发明申请

WO2005111649A1 MOVING TABLE MRI 审中-公开
标题翻译：移动表MRI
公开(公告)号：WO2005111649A1
公开(公告)日：2005-11-24
申请号：PCT/IB2005/051559
申请日：2005-05-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HAM, Cornelis, L., G. , FUDERER, Miha , VAN DEN BRINK, Johan, S.
发明人： HAM, Cornelis, L., G. , FUDERER, Miha , VAN DEN BRINK, Johan, S.
IPC分类号： G01R33/563
CPC分类号： G01R33/56375
摘要： The invention relates to a MRI system and to a method for producing an image with such an system. In order to provide a MR imaging technique with a high efficient MR signal acquisition, which provides a high level of comfort to a patient, a MRI system and method are suggested, where image data from an object are acquired while the object is moving with variable speed relative to the MRI system, and where the image data are combined and an image of the object is reconstructed.
摘要翻译：本发明涉及一种MRI系统和一种用这种系统生产图像的方法。为了提供具有高效MR信号采集的MR成像技术，其为患者提供了高水平的舒适性，建议了MRI系统和方法，其中在物体运动时获取来自对象的图像数据，相对于MRI系统的速度，并且其中图像数据被组合并且重建对象的图像。

8. 发明申请

WO2004106959A1 CONTRAST-ENHANCED MOVING TABLE MR ARTERIOGRAPHY WITH STOCHASTIC SAMPLING OF CENTRAL K-SPACE 审中-公开
标题翻译：对比增强移动表通过中央K空间的STOCHASTIC采样进行扫描
公开(公告)号：WO2004106959A1
公开(公告)日：2004-12-09
申请号：PCT/IB2004/050779
申请日：2004-05-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DEN BRINK, Johan, S. , FUDERER, Miha , HARVEY, Paul, R.
发明人： VAN DEN BRINK, Johan, S. , FUDERER, Miha , HARVEY, Paul, R.
IPC分类号： G01R33/28
CPC分类号： G01R33/56375 , G01R33/5601
摘要： A system is described for the acquisition of a magnetic resonance scan of a subject. The system is particularly useful when the subject which contains a volume of interest which is larger than the field of view of the system and when the scan includes a time dependent signal. The system also comprising a subject support capable of movement relative to the field of view. The system presented is arranged to perform at least a first scan and a second scan, the first scan being arranged so that signal is acquired from the central region of k-space as the subject support is moved through the field of view in a first direction and the second scan being arranged so that signal is acquired from the periphery of k -space as the subject support is moved through the field of view in a second direction.
摘要翻译：描述了用于获取对象的磁共振扫描的系统。当包含感兴趣的体积大于系统视野的主体以及扫描包括时间相关信号时，该系统特别有用。该系统还包括能够相对于视场移动的对象支撑。所呈现的系统被布置成执行至少第一扫描和第二扫描，第一扫描被布置成使得当主体支架沿第一方向移动通过视场时从k空间的中心区域获取信号并且第二扫描被布置成使得当主体支架沿着第二方向移动通过视场时，从k空间的周边获取信号。

9. 发明申请

WO2004053514A1 MAGNETIC RESONANCE IMAGING SYSTEM WITH A PLURALITY OF TRANSMIT COILS 审中-公开
标题翻译：具有多重发射线圈的磁共振成像系统
公开(公告)号：WO2004053514A1
公开(公告)日：2004-06-24
申请号：PCT/IB2003/005015
申请日：2003-11-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HAM, Cornelis, L., G. , FUDERER, Miha
发明人： HAM, Cornelis, L., G. , FUDERER, Miha
IPC分类号： G01R33/36
CPC分类号： G01R33/5659 , G01R33/246 , G01R33/3415 , G01R33/5612
摘要： The invention relates to an MRI system (1) for nuclear magnetic resonance imaging which comprises a plurality of transmit coils (11, 12). Each coil receives a coil drive signal (SD1, SD2). The respective coil drive signals have the same shape, but may have a different amplitude and phase, controlled by a controller (103) on the basis of characteristic information in a memory (104) as well as user input information. The controller is designed to set the respective amplitudes and phases in such a way that the resultant overall B1 field is as homogeneous as possible in a volume of interest.
摘要翻译：本发明涉及用于核磁共振成像的MRI系统（1），其包括多个发射线圈（11,12）。每个线圈接收线圈驱动信号（SD1，SD2）。相应的线圈驱动信号具有相同的形状，但是可以具有不同的幅度和相位，其基于存储器（104）中的特征信息以及用户输入信息由控制器（103）控制。控制器设计成以相应的方式设置相应的幅度和相位，使得所得到的总体B1场在感兴趣的体积中尽可能均匀。

10. 发明申请

WO2011077355A1 MAGNETIC RESONANCE ELASTOGRAPHY 审中-公开
标题翻译：磁共振ELASTOGRAPHY
公开(公告)号：WO2011077355A1
公开(公告)日：2011-06-30
申请号：PCT/IB2010/055950
申请日：2010-12-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , FUDERER, Miha
发明人： FUDERER, Miha
IPC分类号： G01R33/563
CPC分类号： G01R33/56358
摘要： A magnetic resonance elastography method includes application of mechanical oscillations with an oscillation period (T) to an object to be examined to generate mechanical waves in the object. A motion sensitive magnetic resonance acquisition sequence with repetition time T R issued to acquire magnetic resonance signals from the object. This acquisition sequence including application of one or more phase encoding steps within an individual repetition time. The repetition time times the number of phase encodings within one repetition time is not equal to an integer multiple of the oscillation period. Thus a magnetic resonance image of the wave pattern is reconstructed from the magnetic resonance signals assembled in a sample space spanned by the phase of the mechanical oscillation and the phase encoding.
摘要翻译：磁共振弹性成像方法包括将振荡周期（T）施加到待检查对象的机械振荡以在物体中产生机械波。发出具有重复时间TR的运动敏感磁共振采集序列，以从物体采集磁共振信号。该采集序列包括在单独的重复时间内应用一个或多个相位编码步骤。重复时间乘以一个重复时间内的相位编码数不等于振荡周期的整数倍。因此，从组装在由机械振荡和相位编码的相位所跨越的采样空间中的磁共振信号来重建波形图案的磁共振图像。

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