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1. 发明公开

EP2345906A1 RF antenna for a hybrid MRI/PET or MRI/HIFU system 审中-公开
标题翻译： RF-Antennefürein MRI / PET-oder MRI / HIFU-Hybridsystem
公开(公告)号：EP2345906A1
公开(公告)日：2011-07-20
申请号：EP10150236.7
申请日：2010-01-07
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： Forthmann, Peter , Lips, Oliver , Vernickel, Peter , Holle, Eerke , Jacobs, Cornelis, W. , Haan, Paulus C.H.A. , Ylihautala, Mika, P. , Kohler, Max, O. , Halkola, Annemaria , Lindstrom, Matti , Koskela, Julius , Nousiainen, Matti
IPC分类号： G01R33/34
CPC分类号： G01R33/4814 , G01R33/288 , G01R33/34007 , G01R33/341 , G01R33/481
摘要： An RF/MR transmit and/or receive antenna is disclosed for use in a hybrid magnetic resonance imaging (MRI) system (or MR scanner), which comprises an MRI system and another imaging system in the form of a positron emission tomography (PET) system, or a high intensity focused ultrasound (HIFU) system. The RF transmit and/or receive antenna (40, 50) is provided with respect to its conductor structure such that it does not disturb or in any other way detrimentally influence the related other (i.e. PET or HIFU) of the two systems, especially if both systems are operated simultaneously and if the RF antenna is positioned in close proximity to an object to be imaged.
摘要翻译：公开了用于混合磁共振成像（MRI）系统（或MR扫描仪）的RF / MR发射和/或接收天线，其包括MRI系统和正电子发射断层摄影（PET）形式的另一成像系统，系统或高强度聚焦超声（HIFU）系统。 RF发射和/或接收天线（40,50）相对于其导体结构提供，使得其不受干扰或以任何其它方式有害地影响两个系统的相关的另一个（即PET或HIFU），特别是如果两个系统同时运行，并且如果RF天线被定位成紧邻待成像对象。

2. 发明公开

EP2581756A1 MR imaging using parallel signal acquisition 审中-公开
标题翻译： MR-Bildgebung mit平行线Signalerhalt
公开(公告)号：EP2581756A1
公开(公告)日：2013-04-17
申请号：EP11184643.2
申请日：2011-10-11
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： Forthmann, Peter , Brink Van Den, Johan, S. , Harvey, Paul, R. , Leussler, Christoph , Vernickel, Peter , Wuelbern, Jan Hendrik , Graesslin, Ingmar
IPC分类号： G01R33/561
CPC分类号： G01R33/5611
摘要： The invention relates to a method of MR imaging of at least an object (10) placed in an examination volume of a MR device (1). The method comprises the steps of:
- subjecting the object (10) to a first imaging sequence for acquiring a first signal data set (19), which first signal data set (19) includes MR signals received via a volume RF coil (9) having an essentially homogeneous spatial sensitivity profile within the examination volume, wherein the first imaging sequence comprises RF pulses and switched magnetic field gradients controlled in such a manner that only a central portion of k-space is sampled at a full sampling density;
- subjecting the object (10) to a second imaging sequence for acquiring a second signal data set (20, 21, 22), which second signal data set (20, 21, 22) includes MR signals received in parallel via a set of at least two array RF coils (11, 12, 13) having different spatial sensitivity profiles within the examination volume, wherein the second imaging sequence comprises RF pulses and switched magnetic field gradients controlled in such a manner that peripheral and central portions of k-space are sampled at a reduced sampling density;
- deriving a set of weights from the first signal data (19) set and the second signal data set (20, 21, 22);
- applying the set of weights for combining the MR signals received via the at least two array RF coils (11, 12, 13) into a third signal data set (25) in such a manner that the third signal data set (25) covers the peripheral and central portions of k-space at the full sampling density; and
- reconstructing a MR image (27) from the third signal data set (25). Moreover, the invention relates to a MR device for carrying out this method as well as to a computer program to be run on a MR device.
摘要翻译：本发明涉及放置在MR装置（1）的检查体积中的至少一个物体（10）的MR成像方法。该方法包括以下步骤： - 对象物（10）进行第一成像序列以获取第一信号数据集（19），该第一信号数据集（19）包括经由体积RF线圈（9）接收的MR信号，在所述检查体积内具有基本上均匀的空间灵敏度分布，其中所述第一成像序列包括RF脉冲和开关磁场梯度，所述RF脉冲和切换磁场梯度以这样的方式被控制，使得只有k空间的中心部分以全采样密度被采样; - 对对象（10）进行第二成像序列，以获取第二信号数据集（20,21,22），所述第二信号数据集（20,21,22）包括经由一组at 在所述检查体积内具有不同空间灵敏度特性的至少两个阵列RF线圈（11,12,13），其中所述第二成像序列包括RF脉冲和切换磁场梯度，以使k空间的外围和中心部分以降低的采样密度进行采样; - 从所述第一信号数据（19）和所述第二信号数据集（20,21,22）导出权重集合; - 将所述一组权重应用于将经由所述至少两个阵列RF线圈（11,12,13）接收的MR信号组合成第三信号数据组（25），使得所述第三信号数据组（25）覆盖 k空间的周边和中心部分处于全采样密度; 以及 - 从所述第三信号数据组（25）重构MR图像（27）。此外，本发明涉及用于执行该方法的MR设备以及要在MR设备上运行的计算机程序。

3. 发明公开

EP2578148A1 Medical imaging system with motion detection 审中-公开
标题翻译： Bizegungserkennung Medizinisches Abbildungsystem mit
公开(公告)号：EP2578148A1
公开(公告)日：2013-04-10
申请号：EP11183810.8
申请日：2011-10-04
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： Forthmann, Peter , Kuhn, Michael, H. , Amthor, Thomas , Krueger, Sascha
IPC分类号： A61B5/055 , A61B5/107 , A61B5/113 , G01R33/565
CPC分类号： A61B5/1128 , A61B5/0082 , A61B5/055 , A61B5/1077 , A61B5/113 , A61B5/6804 , A61B5/6823 , A61B5/7278 , A61B6/4417 , A61B6/527 , A61B8/5276 , A61B2562/0266 , G01R33/28 , G01R33/34084 , G01R33/3415 , G01R33/4808 , G01R33/56509 , G01R33/5673
摘要： A medical imaging system comprises an image data acquisition module to acquire imaging data and a motion detection module to acquire motion information. A reconstruction module reconstructs image datasets from the imaging data and with use of the motion information to correct for motion. The motion detection module is provided with a shape-sensing photonic fibre system to provide a photonic output representative of the spatial shape of the photonic fibre and an arithmetic unit to compute the motion information on the basis of the photonic output.
摘要翻译：医疗成像系统包括：图像数据获取模块，用于获取成像数据;以及运动检测模块，用于获取运动信息。重建模块从成像数据中重建图像数据集，并利用运动信息来校正运动。运动检测模块设置有形状感测光子纤维系统，以提供表示光子纤维的空间形状的光子输出和运算单元，以基于光子输出计算运动信息。

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