公开(公告)号：US20090121713A1

公开(公告)日：2009-05-14

申请号：US11911208

申请日：2006-04-07

申请人： Marinus Johannes Adrianus Van Helvoort

发明人： Marinus Johannes Adrianus Van Helvoort

IPC分类号： G01R33/34 ,  G01R33/48

CPC分类号： G01R33/3692 ,  G01R33/341 ,  H01Q1/22 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q23/00

摘要： An RF receiver antenna (1), notably for use in an magnetic resonance imaging system for picking up magnetic resonance signals comprises a resonant pick-up circuit and communication unit (2) to transmit and/or receive data and including a transmit/receive antenna integrated in the resonant pick-up circuit.

摘要翻译： 专门用于拾取磁共振信号的磁共振成像系统的RF接收机天线（1）包括谐振拾取电路和通信单元（2），用于发送和/或接收数据并包括发射/接收天线 集成在谐振拾取电路中。

公开(公告)号：US20080054903A1

公开(公告)日：2008-03-06

申请号：US11572714

申请日：2005-07-12

申请人： Cecilia Possanzini ,  Marinus Johannes Adrianus Van Helvoort ,  Jan Warntjes ,  Robert Kleihorst

发明人： Cecilia Possanzini ,  Marinus Johannes Adrianus Van Helvoort ,  Jan Warntjes ,  Robert Kleihorst

IPC分类号： G01R33/341

CPC分类号： G01R33/341

摘要： The invention relates to a magnetic resonance imaging (MRI) apparatus comprising an electrical coil system (17) for transmitting and receiving a radio-frequent (RF) magnetic field from an examination volume (3) of the MRI apparatus. The electrical coil system (17) comprises at least one surface coil (35) which substantially extends in a plane. The surface coil serves for transmitting and/or receiving an RF magnetic field which is substantially oriented perpendicular to the plane of the surface coil (35). The surface coil (35) has a main coil axis (37). When the MRI apparatus is in use the main coil axis (37) extends substantially parallel to a main magnetic field in the examination volume (3) of the MRI apparatus. On both sides of the main coil axis (37) the surface coil (35) comprises an electrically conducting element (39) which extends substantially parallel to the main coil axis (37). To provide a surface coil (35) which transmits more homogeneous RF magnetic fields and/or has a more homogeneous sensitivity for received RF magnetic fields than known surface coils, at least one of the electrically conducting elements (39) of the surface coil (35) comprises at least two electrical conductors (41). With respect to their distance to the main coil axis (37) these electrical conductors (41) are positioned at a relatively short distance from each other. In the plane of the surface coil (35) the electrical conductors (41) substantially extend parallel to the main coil axis (37) of the surface coil (35).

摘要翻译： 本发明涉及一种磁共振成像（MRI）装置，其包括用于从MRI装置的检查体积（3）发射和接收射频（RF）磁场的电线圈系统（17）。 电线圈系统（17）包括基本上在平面中延伸的至少一个表面线圈（35）。 表面线圈用于传输和/或接收基本上垂直于表面线圈（35）的平面定向的RF磁场。 表面线圈（35）具有主线圈轴（37）。 当MRI装置使用时，主线圈轴线（37）基本上平行于MRI装置的检查体积（3）中的主磁场延伸。 在主线圈轴（37）的两侧，表面线圈（35）包括基本上平行于主线圈轴线（37）延伸的导电元件（39）。 为了提供表面线圈（35），所述表面线圈（35）传递更均匀的RF磁场和/或对已接收的RF磁场具有比已知表面线圈更均匀的灵敏度，表面线圈（35）的至少一个导电元件（39） ）包括至少两个电导体（41）。 对于它们到主线圈轴线（37）的距离，这些电导体（41）位于彼此相对短的距离处。 在表面线圈（35）的平面中，电导体（41）基本上平行于表面线圈（35）的主线圈轴线（37）延伸。