公开(公告)号：EP2409358A1

公开(公告)日：2012-01-25

申请号：EP10710450.7

申请日：2010-03-17

申请人： Koninklijke Philips Electronics N.V.

发明人： LAGENDIJK, Jan, J., W. ,  RAAIJMAKERS, Alexander, J., E. ,  VAN DEN BERG, Cornelis, A., T. ,  POSSANZINI, Cecilia ,  HARVEY, Paul R.

IPC分类号： H01Q1/38 ,  H01Q1/40 ,  H01Q9/06 ,  H01Q9/28 ,  A61B5/055 ,  G01R33/20

CPC分类号： H01Q9/065 ,  G01R33/34084 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/3453 ,  G01R33/3635 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q9/285

摘要： An antenna array adapted for magnetic resonance imaging, wherein the antenna array comprises at least one antenna element, wherein each antenna element comprises: -a substrate with a first side and a second side, wherein the substrate comprises a dielectric material, -at least one dipole antenna, wherein the dipole antenna is attached to the second side of the substrate, wherein the dipole antenna comprises a first connection adapted for connecting the dipole antenna to a transmission line.

公开(公告)号：EP1941293A2

公开(公告)日：2008-07-09

申请号：EP06809319.4

申请日：2006-09-15

申请人： Koninklijke Philips Electronics N.V.

发明人： POSSANZINI, Cecilia

IPC分类号： G01R33/341 ,  G01R33/3415

CPC分类号： G01R33/3415 ,  G01R33/34007 ,  G01R33/341

摘要： A radio frequency coils array includes a plurality of conductive RF loops (62a, 62b, 62c, 62d, 162a, 162b, 262a, 262b, 362a, 362b, 362c, 462a, 462b, 462c, 562a, 562b) configured to excite or receive magnetic resonance signals, and a plurality of electronics modules (64a, 64b, 64c, 64d, 164a, 164b, 264a, 264b, 364a, 364b, 364c, 464a, 464b, 64c, 564a, 564b) corresponding to the plurality of conductive RF loops. The electronics modules are grouped together in a compact electronics region (66, 166, 266, 366, 466, 66). Each RF coil is operatively connected with a corresponding electronics module. Each electronics module includes at least a pre-amplifier.

公开(公告)号：EP1774355A1

公开(公告)日：2007-04-18

申请号：EP05760041.3

申请日：2005-07-12

申请人： Koninklijke Philips Electronics N.V.

发明人： POSSANZINI, Cecilia ,  VAN HELVOORT, Marinus, J., A., M. ,  WARNTJES, Jan, B., M. ,  KLEIHORST, Robert, P.

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 electric coil system (17) for transmitting and receiving a radio-frequency (RF) magnetic field from an examination volume (3) of the MRI apparatus. The electric coil system (17) comprises at least one surface coil (35) which extends substantially in a plane. The surface coil is used for transmitting and/or receiving a RF magnetic field which is oriented substantially perpendicularly 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 electric conductors (41). With respect to their distance to the main coil axis (37), these electric conductors (41) are positioned at a relatively short distance from each other. In the plane of the surface coil (35), the electric conductors (41) extend substantially parallel to the main coil axis (37) of the surface coil (35).

公开(公告)号：EP2291671A1

公开(公告)日：2011-03-09

申请号：EP09766242.3

申请日：2009-06-10

申请人： Koninklijke Philips Electronics N.V.

发明人： POSSANZINI, Cecilia ,  VRINTEN, Marinus, L., A. ,  BOUTELJE, Marco

IPC分类号： G01R33/36

摘要： A magnetic resonance coil testing arrangement includes an electric circuit for emulating an electrical load to a magnetic resonance coil. The electric circuit is configured to emulate an electrical load corresponding to an electrical load induced by organic tissue at the magnetic resonance frequency of the magnetic resonance coil.