Method and apparatus for continuously, directly monitoring the RF-tightness of a shielded cubicle of an MR system
AssigneeSiemens Aktiengesellschaft
InventorsJuergen Nistler, Wolfgang Renz
Life of this patent
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Abstract
In a method and apparatus for continuously, directly monitoring the RF-tightness of a shielded cubicle of an MR system, a radio-frequency signal is transmitted to the cubicle from the outside via an antenna and the signal part that passes to the interior is identified with a receiver in the inside of the cubicle. An RF transmission antenna arranged at the outside in the door region of the shielded cubicle is connected to an RF output of the MR system, and a body coil of the MR system is employed as a reception antenna for determining the RF tightness of the shielded cubicle of the MR system, and is connected to a monitoring receiver.
Claims8
An apparatus for continuously, directly monitoring RF tightness of a shielded cable containing components of a magnetic resonance system, comprising:
- an antenna adapted to be disposed outside of a shielded cubicle containing components of a magnetic resonance system for transmitting a radio-frequency signal into said shielded cubicle from an exterior thereof;
- said components of said magnetic resonance system inside said shielded cubicle including a body coil, said body coil receiving a portion of said signal transmitted by said antenna which has passed into an interior of said shielded cubicle;
- and
- an evaluation unit connected to said body coil for determining RF tightness of said shielded cubicle dependent on said signal received by said body coil.
A method for continuously, directly monitoring RF tightness of a shielded cubicle of a magnetic resonance system, comprising the steps of:
- disposing a plurality of components, including a body coil, of a magnetic resonance system in an interior of a shielded cubicle for use in conducting a magnetic resonance examination;
- transmitting a radio-frequency signal from an antenna disposed at an exterior of said shielded cubicle;
- receiving a signal portion of said signal transmitted by said antenna, which passes into an interior of said shielded cubicle, with said body coil;
- and
- evaluation RF tightness of said shielded cubicle dependent on the signal portion received by said body coil.
Dependencies are inferred from the claim text.