Magnetic resonance imaging scanner with coil serving as inductor of power amplifier
First Claim
1. An apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging (MRI) scanner, the apparatus comprising:
- a plurality of control modules controlling a plurality of Class E power amplifiers,wherein based on control by each control module of the plurality of control modules each amplifier of the plurality of amplifiers is configured to receive a predetermined supply signal and amplify the signal, such that the signal on each amplifier is independent; and
a plurality of coils, each amplifier being electrically connected to a coil of the plurality of coils and each amplifier outputting the amplified signal tothe electrically connected coil thereto,wherein each output amplified signal is configured such that its waveform, period, and/or amplitude to the coil is independently controlled, andwherein each coil of the plurality of coils serves as an inductor for its electrically connected power amplifier and further transfers the amplified signal to the object so that the object is excited.
1 Assignment
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Accused Products
Abstract
According to an embodiment of the present disclosure, disclosed is an apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging (MRI) scanner. The apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging scanner includes: a control module controlling a power amplifier and a signal generator; the signal generator configured to generate a signal of a predetermined waveform based on control by the control module and supply the generated signal of the predetermined waveform to the power amplifier in electromagnetic connection therewith; a power amplifier amplifying the signal supplied from the signal generator based on the control by control module and outputting the amplified signal to a coil; and the coil serving as an inductor of the power amplifier and transferring the amplified signal to the object so that an object is excited.
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Citations
19 Claims
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1. An apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging (MRI) scanner, the apparatus comprising:
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a plurality of control modules controlling a plurality of Class E power amplifiers, wherein based on control by each control module of the plurality of control modules each amplifier of the plurality of amplifiers is configured to receive a predetermined supply signal and amplify the signal, such that the signal on each amplifier is independent; and a plurality of coils, each amplifier being electrically connected to a coil of the plurality of coils and each amplifier outputting the amplified signal to the electrically connected coil thereto, wherein each output amplified signal is configured such that its waveform, period, and/or amplitude to the coil is independently controlled, and wherein each coil of the plurality of coils serves as an inductor for its electrically connected power amplifier and further transfers the amplified signal to the object so that the object is excited. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A magnetic resonance imaging scanner, comprising:
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an RF pulse generating apparatus, wherein the RF pulse generating apparatus comprises; a plurality of control modules controlling a plurality of Class E power amplifiers, wherein based on control by each control module of the plurality of control modules each amplifier of the plurality of amplifiers is configured to receive a predetermined supply signal and amplify the signal, such that the signal on each amplifier is independent; and a plurality of coils, each amplifier being electrically connected to a coil of the plurality of coils and each amplifier outputting the amplified signal to the electrically connected coil thereto, wherein each output amplified signal is configured such that its waveform, period, and/or amplitude to the coil is independently controlled, and wherein each coil of the plurality of coils serves as an inductor for its electrically connected power amplifier and further transfers the amplified signal to the object so that the object is excited. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification