MAGNETIC RESONANCE SIGNAL RECEIVING APPARATUS, RECEPTION COIL CHANNEL SELECTOR AND MAGNETIC RESONANCE IMAGING SYSTEM
First Claim
1. A magnetic resonance signal receiving apparatus, comprising:
- multiple local coils each designed to separately receive magnetic resonance signals originating from a subject undergoing a magnetic resonance examination, each local coil comprising multiple antenna units and a time division multiplexing module, said time division multiplexing module being configured to cause magnetic resonance signals, received by the respective antenna units and provided to the time division multiplexing module, to be emitted as an output from the time division multiplexing module via a single output line of the time division multiplexing module;
a reception coil channel selector configured to operate the time division multiplexing module to select which magnetic resonance signals, from respective local coils among said multiple coils, are individually provided as outputs via said singe output line; and
a combiner circuit connected to the single output line of each of said multiple local coils, said combiner circuit being configured to combine, in time or power, all or a portion of the magnetic resonance signals provided to said combiner circuit by the respective single output lines of the local coils in order to form at least one magnetic resonance composite signal therefrom.
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Accused Products
Abstract
A magnetic resonance (MR) signal receiving apparatus has multiple local coils, capable of separately receiving MR signals generated by a body in an MR examination, each of the local coils having multiple antenna units and a time division multiplexing module. The time division multiplexing module enables MR signals received by the antenna units separately to be provided as an output by just one output line. The apparatus also has a reception coil channel selector having multiple input interfaces connected to the respective output lines of the multiple local coils, and a combiner in the reception coil channel selector that combines in time or power, all or a portion of the MR signals of the local coils, to form one or more MR composite signals.
25 Citations
11 Claims
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1. A magnetic resonance signal receiving apparatus, comprising:
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multiple local coils each designed to separately receive magnetic resonance signals originating from a subject undergoing a magnetic resonance examination, each local coil comprising multiple antenna units and a time division multiplexing module, said time division multiplexing module being configured to cause magnetic resonance signals, received by the respective antenna units and provided to the time division multiplexing module, to be emitted as an output from the time division multiplexing module via a single output line of the time division multiplexing module; a reception coil channel selector configured to operate the time division multiplexing module to select which magnetic resonance signals, from respective local coils among said multiple coils, are individually provided as outputs via said singe output line; and a combiner circuit connected to the single output line of each of said multiple local coils, said combiner circuit being configured to combine, in time or power, all or a portion of the magnetic resonance signals provided to said combiner circuit by the respective single output lines of the local coils in order to form at least one magnetic resonance composite signal therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A reception channel circuit for use with multiple local coils each designed to separately receive magnetic resonance signals originating from a subject undergoing a magnetic resonance examination, each local coil comprising multiple antenna units and a time division multiplexing module, said time division multiplexing module being configured to cause magnetic resonance signals, received by the respective antenna units and provided to the time division multiplexing module, to be emitted as an output from the time division multiplexing module via a single output line of the time division multiplexing module, said reception channel circuit comprising:
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a reception coil channel selector configured to operate the time division multiplexing module to select which magnetic resonance signals, from respective local coils among said multiple coils, are individually provided as outputs via said singe output line; and a combiner circuit connected to the single output line of each of said multiple local coils, said combiner circuit being configured to combine, in time or power, all or a portion of the magnetic resonance signals provided to said combiner circuit by the respective single output lines of the local coils in order to form at least one magnetic resonance composite signal therefrom.
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11. A magnetic resonance apparatus comprising:
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a magnetic resonance data acquisition scanner comprising a plurality of local coils that each separately receive magnetic resonance signals from a body undergoing a magnetic resonance examination; each local coil comprising multiple antenna units and a time division multiplexing module, said time division multiplexing module being configured to cause magnetic resonance signals, received by the respective antenna units and provided to the time division multiplexing module, to be emitted as an output from the time division multiplexing module via a single output line of the time division multiplexing module; a reception coil channel selector configured to operate the time division multiplexing module to select which magnetic resonance signals, from respective local coils among said multiple coils, are individually provided as outputs via said singe output line; and a combiner circuit connected to the single output line of each of said multiple local coils, said combiner circuit being configured to combine, in time or power, all or a portion of the magnetic resonance signals provided to said combiner circuit by the respective single output lines of the local coils in order to form at least one magnetic resonance composite signal therefrom.
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Specification