Abstract: A magnetic resonance (MR) system includes an MR receive channel (20) including: an MR coil element (22) configured to receive MR signals in an MR frequency band; an electronic signal processing chain (24) configured to process the MR signals received by the MR coil element to produce processed MR signals, wherein the electronic signal processing chain includes an equalization filter (26); and a signal injector (8, 16, 28, 38, 38D) configured to input a reference radio frequency (RF) signal in the MR frequency band to the signal processing chain, wherein the signal processing chain processes the reference RF signal to generate a processed reference RF signal. Equalizer electronics (30) are configured to adjust the equalization filter based at least on the processed reference RF signal such that the MR receive channel has a flat frequency response over the MR frequency band.

Abstract: An apparatus (10) includes: a radiofrequency (RF) coil (18); a detune circuit (38) operatively coupled to the RF coil, wherein the detune circuit includes a decoupling inductor (40) configured as a transmitter (TX) inductor; and a harvester (44) coupled to the decoupling inductor for harvesting energy from the decoupling inductor.

Abstract: A radio frequency (RF) circuit is provided for use with a magnetic resonance imaging (MRI) scanner to transmit an RF receive signal to an amplifier circuit, the RF circuit comprising: a transmission line; an antenna electrically connected to a first end portion of the transmission line; an impedance transformation circuit; an impedance matching and detuning circuit electrically connected between the transmission line and the impedance transformation circuit, wherein the impedance matching and detuning circuit includes: multiple reactive impedance elements; and two or more switches operable to controllably switch between configuring the multiple reactive impedance elements to cause matching of overall impedance of the RF circuit to a prescribed input impedance seen at the amplifier circuit at a prescribed RF frequency during a receive mode of the MRI scanner, and to cause an increase of impedance at the antenna, to reduce sensitivity of the antenna to RF signals at the prescribed frequency during an excitation

Abstract: A magnetic resonance (MR) receive device comprises a coil or coil array including at least one radiofrequency (RF) coil element wherein each RF coil element comprises a coil and a preamplifier connected to amplify an output of the RF coil element to generate an amplified RF signal. The MR receive device further includes an RF-over-Fiber module comprising an optical fiber, a photonic device optically coupled to send an optical signal into the optical fiber, and an RF modulator connected to modulate the optical signal by an MR signal comprising the amplified RF signal.

Abstract: A magnetic resonance (MR) receive device comprises a coil or coil array including at least one radiofrequency (RF) coil element wherein each RF coil element comprises a coil and a preamplifier connected to amplify an output of the RF coil element to generate an amplified RF signal. The MR receive device further includes an RF-over-Fiber module comprising an optical fiber, a photonic device optically coupled to send an optical signal into the optical fiber, and an RF modulator connected to modulate the optical signal by an MR signal comprising the amplified RF signal.

Abstract: A modular magnetic resonance imaging protection system includes a support, a first platform and a second platform. The support passes through a bore of a magnetic resonance imaging system and includes a first guidance system. The first platform and second platform are each configured to support a patient. The first platform and second platform can each be guided from a carrier to the support through an acoustic shield. The first platform and second platform respectively include a second guidance system and a third guidance system to cooperatively guide the first platform and second platform along the support, into the bore of the magnetic resonance imaging system, and out of the bore of the magnetic resonance imaging system in cooperation with the first guidance system.