Invention Application
- Patent Title: System for magnetic resonance imaging
- Patent Title (中): 磁共振成像系统
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Application No.: US10599144Application Date: 2005-03-21
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Publication No.: US20070276222A1Publication Date: 2007-11-29
- Inventor: Miha Fuderer , Franciscus Petrus Adrianus Donders
- Applicant: Miha Fuderer , Franciscus Petrus Adrianus Donders
- Applicant Address: NL Eindhoven
- Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
- Current Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP04101282.4 20040329
- International Application: PCT/IB05/50960 WO 20050321
- Main IPC: A61B5/055
- IPC: A61B5/055

Abstract:
The invention relates to a system for magnetic resonance imaging (MRI). Such systems face an additional contribution to the inhomogeneity of the radio frequency (RF) field when high magnetic fields are applied. The invention tries to improve the homogeneity of the RF field for high field strengths, particularly for field strengths at or above 3 tesla. To improve the homogeneity an electrically conducting material (4) is positioned within the cavity (2) of the system. The material has a conductivity and a thickness which ensure that the total radial conductance in an xy-plane perpendicular to the symmetry axis of the cavity becomes isotropic.
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