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1. 发明申请

WO2011033402A1 CONCURRENT OPTIMIZATION OF RF POWER AND RF FIELD UNIFORMITY IN MRI 审中-公开
标题翻译： MRI中射频功率和RF场均匀性的并发优化
公开(公告)号：WO2011033402A1
公开(公告)日：2011-03-24
申请号：PCT/IB2010/053558
申请日：2010-08-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HARVEY, Paul, R. , HOLTHUIZEN, Ronaldus, F., J. , PRINS, Willem, M. , BENSCHOP, Franciscus, J., M.
发明人： HARVEY, Paul, R. , HOLTHUIZEN, Ronaldus, F., J. , PRINS, Willem, M. , BENSCHOP, Franciscus, J., M.
IPC分类号： G01R33/58
CPC分类号： G01R33/583 , G01R33/5612 , G01R33/5659
摘要： A magnetic resonance method comprising: loading a subject into a magnetic resonance scanner; with the subject loaded into the magnetic resonance scanner, acquiring Bl maps (72) for a plurality of radio frequency transmit channels of the magnetic resonance scanner; shimming the plurality of radio frequency transmit channels and setting a radio frequency transmit power for the shimmed plurality of radio frequency transmit channels using the acquired B 1 maps to generate optimized amplitude and phase parameters (98) for the plurality of radio frequency transmit channels; acquiring magnetic resonance imaging data of the subject loaded into the magnetic resonance scanner including exciting magnetic resonance by operating the plurality of radio frequency transmit channels using the optimized amplitude and phase parameters; generating a reconstructed image from the acquired magnetic resonance imaging data; and displaying the reconstructed image.
摘要翻译：一种磁共振方法，包括：将对象加载到磁共振扫描仪中; 其中所述对象被加载到所述磁共振扫描器中，为所述磁共振扫描器的多个射频发射信道采集Bl映射（72）; 对所述多个射频发射信道进行匀场，并使用所获取的B 1映射设置所述多个无线频率发射信道的射频发射功率，以产生用于所述多个射频发射信道的优化幅度和相位参数（98）; 使用优化的幅度和相位参数，通过操作多个射频发射信道来获取加载到磁共振扫描仪中的被摄体的磁共振成像数据，其包括激发磁共振; 从所获取的磁共振成像数据生成重建图像; 并显示重建的图像。

2. 发明申请

WO2008041155A2 SENSOR SELECTION DEVICE FOR SELECTING SENSOR ELEMENTS OF A MAGNETIC RESONANCE IMAGING DEVICE 审中-公开
标题翻译：用于选择磁共振成像装置的传感器元件的传感器选择装置
公开(公告)号：WO2008041155A2
公开(公告)日：2008-04-10
申请号：PCT/IB2007/053898
申请日：2007-09-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BENSCHOP, Franciscus, J., M.
发明人： BENSCHOP, Franciscus, J., M.
IPC分类号： G01R33/3415
CPC分类号： G01R33/3415
摘要： The present invention provides a sensor selection device for selecting sensor elements of a magnetic resonance imaging device, the sensor selection device comprising a provider for providing a first characteristic property (601) of a first sensor element (603) within a predetermined scan volume and for providing a second characteristic property (605) of a second sensor element (607) within the predetermined scan volume (215), a means for determining a mutual quantity from the first characteristic property (601) and from the second characteristic property (605), and a selector for selecting or for excluding the first sensor element (601) or the second sensor element (601) based on the mutual quantity.
摘要翻译：本发明提供了一种用于选择磁共振成像装置的传感器元件的传感器选择装置，所述传感器选择装置包括用于在预定扫描体积内提供第一传感器元件（603）的第一特性（601）的提供器，并且提供预定扫描体积（215）内的第二传感器元件（607）的第二特性（605），用于根据第一特性（601）和第二特性（605）确定相互数量的装置，以及用于基于相互量选择或排除第一传感器元件（601）或第二传感器元件（601）的选择器。

3. 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）。

4. 发明申请

WO2008041155A3 COIL ELEMENT SELECTION DEVICE FOR SELECTING ELEMENTS OF A RECEIVER COIL ARRAY OF A MAGNETIC RESONANCE IMAGING DEVICE 审中-公开
标题翻译：用于选择磁共振成像装置的接收器线圈的元件的线圈元件选择装置
公开(公告)号：WO2008041155A3
公开(公告)日：2008-07-03
申请号：PCT/IB2007053898
申请日：2007-09-26
申请人： KONINKL PHILIPS ELECTRONICS NV , BENSCHOP FRANCISCUS J M
发明人： BENSCHOP FRANCISCUS J M
IPC分类号： G01R33/3415
CPC分类号： G01R33/3415
摘要： The present invention provides a sensor selection device for selecting sensor elements of a magnetic resonance imaging device, the sensor selection device comprising a provider for providing a first characteristic property (601) of a first sensor element (603) within a predetermined scan volume and for providing a second characteristic property (605) of a second sensor element (607) within the predetermined scan volume (215), a means for determining a mutual quantity from the first characteristic property (601) and from the second characteristic property (605), and a selector for selecting or for excluding the first sensor element (601) or the second sensor element (601) based on the mutual quantity.
摘要翻译：本发明提供了一种用于选择磁共振成像装置的传感器元件的传感器选择装置，所述传感器选择装置包括用于在预定扫描体积内提供第一传感器元件（603）的第一特性（601）的提供器，并且提供预定扫描体积（215）内的第二传感器元件（607）的第二特性（605），用于根据第一特性（601）和第二特性（605）确定相互数量的装置，以及用于基于相互量选择或排除第一传感器元件（601）或第二传感器元件（601）的选择器。

5. 发明申请

WO2011033401A1 IMAGE INTENSITY CORRECTION FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：磁共振成像的图像强度校正
公开(公告)号：WO2011033401A1
公开(公告)日：2011-03-24
申请号：PCT/IB2010/053556
申请日：2010-08-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HARVEY, Paul, R. , ROZIJN, Thomas, H. , IJPEREN, Gerrit, H. , PRINS, Willem, M. , MENS, Wilhelmus, R., M. , BENSCHOP, Franciscus, J., M.
发明人： HARVEY, Paul, R. , ROZIJN, Thomas, H. , IJPEREN, Gerrit, H. , PRINS, Willem, M. , MENS, Wilhelmus, R., M. , BENSCHOP, Franciscus, J., M.
IPC分类号： G01R33/565
CPC分类号： G01R33/5659
摘要： A magnetic resonance system comprises : a magnetic resonance scanner including a multi-channel transmit coil or coil system and a magnetic resonance receive element; and a digital processor configured to perform an imaging process including shimming the multi-channel transmit coil or coil system, acquiring a coil sensitivity map for the magnetic resonance receive element using the multi-channel transmit coil or coil system, acquiring a magnetic resonance image using the magnetic resonance receive element and the shimmed multi-channel transmit coil or coil system, and performing an intensity level correction on the acquired magnetic resonance image using the coil sensitivity map to generate a corrected magnetic resonance image.
摘要翻译：磁共振系统包括：包括多通道发射线圈或线圈系统和磁共振接收元件的磁共振扫描器; 以及数字处理器，被配置为执行包括对多通道发射线圈或线圈系统进行匀场的成像处理，使用多通道发射线圈或线圈系统获取用于磁共振接收元件的线圈灵敏度图，使用所述磁共振接收元件和所述散光多通道发射线圈或线圈系统，并且使用所述线圈灵敏度映射对获取的磁共振图像执行强度电平校正，以产生校正的磁共振图像。

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