RF coil system for MRI
AssigneeKabushiki Kaisha Toshiba
InventorKazuto Nakabayashi
Life of this patent
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Abstract
An RF coil system for MRI comprises a coil unit for producing an exciting RF magnetic field or receiving an MR signal. A distributed constant line is connected to the coil unit and is formed into a length less than n.multidot.(.lambda./4) (n is a positive integer of one or more), where .lambda. is an wavelength of the RF signal or MR signal. A lumped constant circuit is connected in series to the distributed constant line and virtually forming the length of n.multidot.(.lambda./4) in cooperation operatively with the distributed constant line.
Claims20
An RF coil system for magnetic resonance imaging of an object, the system comprising:
- a coil unit for transmitting a radio frequency signal to the object and receiving a magnetic resonance signal from the object;
- a distributed constant electrical line electrically connected to the coil unit and formed into a length less than n.sup.. (.lambda./4) (n is a positive integer of one or more), where .lambda. is a wavelength of at least one of the radio frequency signal and the magnetic resonance signal;
- and
- a lumped constant electrical circuit being electrically connected in series to the distributed constant electrical line and virtually forming the length of a n.sup.. (.lambda./4) (n is a positive integer of one or more) in cooperation operatively with the distributed constant electrical line.
Dependencies are inferred from the claim text.