Magnetic resonance acquisition system, receiver antenna module, transmission signal reception module, magnetic resonance system and method to transfer mr response signals

A transmission signal receiver module for a magnetic resonance system comprising:

• a first channel switching matrix comprising a plurality of input channels respectively supplied with common transmission signals comprised of multiple superimposed modes of magnetic resonance signals, and having a plurality of output channels, and a control input, said first channel switching matrix being configured to connect, dependent on a control signal supplied to said control input, at least one of said transmission lines through said first channel switching matrix to one of said output channels;
• a frequency demultiplexer arrangement connected downstream of said first channel switching matrix, said frequency demultiplexer arrangement being supplied with at least one of said common transmission signals from an output channel of said first channel switching matrix and being configured to filter the modes that were superimposed in said common transmission signal out of said common transmission signal;
• and
• a second channel switching matrix connected downstream of said frequency demultiplexer arrangement configured to supply the modes that were filtered out of said common transmission channel to a magnetic resonance signal processing device.

A magnetic resonance system comprising:

• a magnetic resonance data acquisition unit;
• an antenna arrangement in said magnetic resonance data acquisition unit comprising a plurality of reception antenna elements each configured to receive magnetic resonance signals from an examination subject in the magnetic resonance data acquisition unit;
• a combination network arrangement comprising a plurality of combination networks, said plurality of combination networks being respectively supplied with different combinations of said magnetic resonance signals from said reception antenna elements, and each combination network combining the magnetic resonance signals supplied thereto to form a mode, with each of said combination networks forming a different mode from the modes respectively formed by others of said combination networks;
• a frequency multiplexer arrangement connected downstream of said combination network, said frequency multiplexer arrangement comprising a plurality of frequency multiplexers and each frequency multiplexer, by frequency multiplexing, superimposing at least some of said modes to form a common transmission signal;
• a transmission line arrangement comprising a plurality of transmission lines respectively connected to said frequency multiplexers to respectively transmit the respective common transmission signals;
• a first channel switching matrix comprising a plurality of input channels respectively connected to said plurality of transmission lines, and having a plurality of output channels, and a control input, said first channel switching matrix being configured to connect, dependent on a control signal supplied to said control input, at least one of said transmission lines through said first channel switching matrix to one of said output channels;
• a frequency demultiplexer arrangement connected downstream of said first channel switching matrix, said frequency demultiplexer arrangement being supplied with at least one of said common transmission signals from an output channel of said first channel switching matrix and being configured to filter the modes that were superimposed in said common transmission signal out of said common transmission signal;
• a magnetic resonance signal processing device;
• and
• a second channel switching matrix connected downstream of said frequency demultiplexer arrangement configured to supply the modes that were filtered out of said common transmission channel to said magnetic resonance signal processing device.

A method for transmitting magnetic resonance signals from an antenna arrangement in a magnetic resonance system, comprising the steps of:

• with an antenna arrangement comprising a plurality of reception antenna elements receiving magnetic resonance signals from an examination subject with the respective antenna elements;
• supplying different combinations of said magnetic resonance signals from said reception antenna elements to respective combination networks and, in each combination network, combining the magnetic resonance signals supplied thereto to form a mode, with each of said combination networks forming a different mode from the modes respectively formed by others of said combination networks;
• in each of a plurality of frequency multiplexers, superimposing, by frequency multiplexing, at least some of said modes to form a common transmission signal;
• transmitting the respective common transmission signals to a first channel switching matrix comprising a plurality of input channels and a plurality of output channels, and a control input, and in said first channel switching matrix connecting, dependent on a control signal supplied to said control input, at least one of said transmission lines through said first channel switching matrix to one of said output channels;
• by frequency demultiplexing, filtering the modes that were superimposed in said common transmission signal out of said common transmission signal at said output of said first switching matrix;
• and
• from a second channel switching matrix, supplying the modes that were filtered out of said common transmission channel to a magnetic resonance signal processing device.