Title:
RFコイルおよびMRI装置
Document Type and Number:
Japanese Patent JP4091521
Kind Code:
B2
Abstract:
An RF coil includes a plurality of concentric loops lying at different positions along a coil axis, whose sensitivity is improved in a central portion, and a plurality of loops are constructed as circular loops whose circles correspond to those formed by cutting a sphere common to the loops vertically with respect to the coil axis at different positions along the coil axis. Each of the plurality of loops constitutes a solenoid coil. Alternatively, a helical coil uninterruptedly running around the coil axis is formed.
Inventors:
Kenji Sato
Application Number:
JP2003361472A
Publication Date:
May 28, 2008
Filing Date:
October 22, 2003
Export Citation:
Assignee:
GE Medical Systems Global Technology Company LLC
International Classes:
A61B5/055; G01R33/34
Domestic Patent References:
| JP60139257U | ||||
| JP61111448A | ||||
| JP62128105A | ||||
| JP63111843A | ||||
| JP1248043A | ||||
| JP1284238A | ||||
| JP373132A | ||||
| JP8236339A |
Other References:
真野勇,NMR診断法-基礎から臨床まで-,株式会社秀潤社,1985年 4月 1日,75-77
村野公俊 他,放射イミュニティ試験用3次元直交ヘルムホルツコイルの基本特性,電気学会論文誌 A,社団法人電気学会,1999年12月 1日,第119巻、第12号,1409-1415
村野公俊 他,放射イミュニティ試験用3次元直交ヘルムホルツコイルの基本特性,電気学会論文誌 A,社団法人電気学会,1999年12月 1日,第119巻、第12号,1409-1415
Attorney, Agent or Firm:
Fujiharu Ijima
Nobushige Samejima
Nobushige Samejima