RF coil system for an MR apparatus
First Claim
1. An RF coil system which is intended notably for an open MR apparatus and includes a plurality of resonator elements which are arranged at the area of a patient positioned in the examination volume of an MR apparatus, the resonator elements comprising at least one conductor element and at least one capacitor, wherein at least one of the resonator elements is a solenoid element whose conductor element forms at least one open turn which is arranged around the patient.
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Accused Products
Abstract
The invention relates to an RF coil system for an open MR apparatus. The system includes a plurality of resonator elements which are arranged at the area of a patient (102) positioned in the examination volume of an MR apparatus. The resonator elements are constructed at least partly as solenoid elements (104) whose conductor elements form open turns which are arranged around the patient (102). It is thus achieved that the RF field generated in the transmission mode and the sensitivity profile in the detection mode are limited as strictly as possible to the examination volume of interest. At the same time RF field strengths that are adequate for medical imaging can be generated without exposing the patient to an unacceptable load.
25 Citations
10 Claims
- 1. An RF coil system which is intended notably for an open MR apparatus and includes a plurality of resonator elements which are arranged at the area of a patient positioned in the examination volume of an MR apparatus, the resonator elements comprising at least one conductor element and at least one capacitor, wherein at least one of the resonator elements is a solenoid element whose conductor element forms at least one open turn which is arranged around the patient.
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6. An MR apparatus comprising:
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an open main field magnet which generates an essentially vertically directed, steady magnetic field in an examination volume;
a gradient coil system;
an RF coil system comprising;
a plurality of resonator elements which are arranged at the area of a patient positioned in the examination volume of an MR apparatus, the resonator elements comprising at least one conductor element and at least one capacitor, wherein at least one of the resonator elements is a solenoid element whose conductor element forms at least one open turn which is arranged around the patient; and
a receiving unit which is connected to the RF coil system. - View Dependent Claims (7, 8, 9, 10)
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Specification