Radio frequency coil device and magnetic resonance imaging system
First Claim
1. A radio frequency coil device connected to an interface unit having n coax pins and n signal pins, the radio frequency coil device comprising:
- m coil elements, wherein m is an integer greater than 1;
a RF switch control unit comprising n output terminals and m input terminals connected to the m coil elements, respectively, wherein n is an integer greater than or equal to 1 and less than m;
n or fewer on/off control lines connecting signal pins of the interface unit to a decoder; and
the decoder, integrated into the radio frequency coil device, operable to output a switch control signal to the RF switch control unit according to control commands received via the n or fewer on/off control lines,wherein the decoder controls the RF switch control unit to connect each n or less input terminals to a different output terminal according to the switch control signal.
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Accused Products
Abstract
An RF coil device and an MRI system are provided. The RF coil device includes m coil elements, where m is an integer greater than 1. The RF coil device also includes an RF switch control unit including n output terminals and m input terminals connected to the m coil elements, respectively, where n is an integer greater than or equal to 1 and less than m. The RF coil device includes a decoder for outputting a control signal to the RF switch control unit according to a received control command. The RF switch control unit connects each of not more than n input terminals to a different output terminal according to the control signal.
28 Citations
16 Claims
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1. A radio frequency coil device connected to an interface unit having n coax pins and n signal pins, the radio frequency coil device comprising:
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m coil elements, wherein m is an integer greater than 1; a RF switch control unit comprising n output terminals and m input terminals connected to the m coil elements, respectively, wherein n is an integer greater than or equal to 1 and less than m; n or fewer on/off control lines connecting signal pins of the interface unit to a decoder; and the decoder, integrated into the radio frequency coil device, operable to output a switch control signal to the RF switch control unit according to control commands received via the n or fewer on/off control lines, wherein the decoder controls the RF switch control unit to connect each n or less input terminals to a different output terminal according to the switch control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A magnetic resonance imaging system comprising:
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at least one radio frequency coil device comprising; m coil elements, wherein m is an integer greater than 1; a RF switch control unit comprising n output terminals and m input terminals connected to the m coil elements, respectively, wherein n is an integer greater than or equal to 1 and less than m; and a decoder, integrated into the at least one radio frequency coil device, operable to output a switch control signal to the RF switch control unit according to control commands received via n on/off control lines connecting signal pins of an interface unit to the decoder, wherein the decoder controls the RF switch control unit to connect each n or less input terminals to a different output terminal according to the switch control signal; and an imaging control device comprising; the interface unit having n coax pins; a control unit operable to send, through the interface unit, the control commands and on/off commands for controlling on/off switching of the coil elements; the n on/off control lines further connecting the interface unit with the coil elements, wherein the connection of the interface unit with the coil elements is operable for transmitting the on/off commands sent by the control unit to the coil elements; and n RF channels connected to the output terminals of the RF switch control unit and to the interface unit. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification