公开(公告)号：US07755357B2

公开(公告)日：2010-07-13

申请号：US11721545

申请日：2005-12-20

申请人： Eerke Holle ,  Paulus C. H. A. Haans

发明人： Eerke Holle ,  Paulus C. H. A. Haans

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： A radio frequency coil for transmitting or receiving signals at a magnetic resonance frequency includes an arrangement of substantially parallel rungs (70, 70′, 70″) and one or more generally annular strip-type end-rings (78, 78′, 78″, 80) disposed generally transverse to the parallel rungs and connected with the rungs. Each generally annular strip-type end-ring includes at least two conductor layers (82, 82′, 82″, 84, 84′, 84″, 86, 88) separated by a dielectric layer (72, 72a, 72b). A radio frequency shield (34) substantially surrounds the arrangement of substantially parallel rungs (70, 70′, 70″). At least one of the conductor layers of each end-ring is connected with the radio frequency shield.

摘要翻译： 用于以磁共振频率发送或接收信号的射频线圈包括基本上平行的梯级（70,70'，70“）和一个或多个大致环形的带状端环（78,78'，78”）的布置， ，80）大致横向于平行的梯级并与梯级连接。 每个大致环形的带状端环包括由电介质层（72,72a，72b）分开的至少两个导体层（82,82'，82“，84,84'，84”，86,88）。 射频屏蔽（34）基本上围绕基本上平行的梯级（70,70'，70“）的布置。 每个端环的至少一个导体层与射频屏蔽连接。

公开(公告)号：US20090243611A1

公开(公告)日：2009-10-01

申请号：US11721545

申请日：2005-12-20

申请人： Eerke Holle ,  Paulus C. H. A. Haans

发明人： Eerke Holle ,  Paulus C. H. A. Haans

IPC分类号： G01R33/34

CPC分类号： G01R33/34046

摘要： A radio frequency coil for transmitting or receiving signals at a magnetic resonance frequency includes an arrangement of substantially parallel rungs (70, 70′, 70″) and one or more generally annular strip-type end-rings (78, 78′, 78″, 80) disposed generally transverse to the parallel rungs and connected with the rungs. Each generally annular strip-type end-ring includes at least two conductor layers (82, 82′, 82″, 84, 84′, 84″, 86, 88) separated by a dielectric layer (72, 72a, 72b). A radio frequency shield (34) substantially surrounds the arrangement of substantially parallel rungs (70, 70′, 70″). At least one of the conductor layers of each end-ring is connected with the radio frequency shield.

摘要翻译： 用于以磁共振频率发送或接收信号的射频线圈包括基本上平行的梯级（70,70'，70“）和一个或多个大致环形的带状端环（78,78'，78）的布置 “80”）通常横向于平行的梯级布置并与梯级连接。 每个大致环形的带状端环包括由电介质层（72,72a，72b）分隔开的至少两个导体层（82,82'，82“，84,84'，84”，86,88） 。 射频屏蔽（34）基本上围绕基本平行的梯级（70,70'，70“）的布置。 每个端环的至少一个导体层与射频屏蔽连接。

公开(公告)号：US07304476B2

公开(公告)日：2007-12-04

申请号：US10595474

申请日：2004-10-22

申请人： Marinus L. A. Vrinten ,  Cornelis L. G. Ham ,  Robert P. Kleihorst ,  Gerardus B. J. Mulder ,  Paulus C. H. A. Haans

发明人： Marinus L. A. Vrinten ,  Cornelis L. G. Ham ,  Robert P. Kleihorst ,  Gerardus B. J. Mulder ,  Paulus C. H. A. Haans

IPC分类号： G01V3/00

CPC分类号： G01R33/28 ,  G01R33/3806 ,  G01R33/422

摘要： The invention relates to a treatment room (7) suitable for recording images of a human or animal body on the basis of a magnetic resonance (MR) imaging technique, the walls (7a), the ceiling (7b) and the floor (7c) of the treatment room forming an electromagnetic shield for a magnetic resonance (MR) imaging system (1) arranged in the treatment room, which MR imaging system comprises at least a target area (5) in which a human or animal body can be placed, a housing (2, 3, 4) comprising at least one main magnetic unit and at least one gradient magnetic unit for generating one or more magnetic fields in the target area (5), and at least one radio-frequency (RF) pulse unit (6) for generating an electromagnetic RF pulse in the target area (5). The invention further relates to a magnetic resonance imaging system comprising a target area in which a human or animal body can be placed, a housing comprising at least one main magnetic unit and at least one gradient magnetic unit for generating one or more magnetic fields in the target area, and at least one radio-frequency (RF) pulse unit for generating an electromagnetic RF pulse in the target area. In accordance with the invention, means (10, 11, 12, 13, 14, 15, 16, 17) are present which, in operation, counteract the electromagnetic effects (8) of the RF pulse in the treatment room (7) outside the target area (5).