Abstract: A radio frequency (RF) receive circuit for use in a magnetic resonance imaging (MRI) scanner, comprising: an antenna including multiple reactive impedance elements coupled in a loop configuration; an amplifier input impedance; a first transmission line coupled in parallel with at least one reactive impedance element; a second transmission line coupled in parallel with the amplifier input impedance; a first reactive impedance circuit between the first transmission line and the second transmission line; an RF switch configured to isolate a second combined impedance, that includes the second transmission line and the amplifier input impedance, from a first combined impedance, that includes the first transmission line and the first reactive impedance circuit, when the RF switch is closed and to couple the second combined impedance to the first combined impedance when the RF switch is open; wherein, when the RF switch is closed, the first combined impedance transforms impedance of the RF switch to be in resonance

Abstract: Some embodiments of the present disclosure disclose systems and methods for robust magnetic resonance image reconstruction that can model for all or nearly all components in the magnetic resonance imaging system, that possess compressibility features to speed up reconstructions, and that can be optimized such that the reconstruction can be performed within a short period of time.

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: Some embodiments of the present disclosure disclose systems and methods for robust magnetic resonance image reconstruction that can model for all or nearly all components in the magnetic resonance imaging system, that possess compressibility features to speed up reconstructions, and that can be optimized such that the reconstruction can be performed within a short period of time.

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 single-sided gradient coil set for single-sided magnetic resonance imaging system is disclosed. The coil set is configured to generate a magnetic field outwards away from the coil set. The coil set includes one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture. The coil set is configure to flow a current through the one or more first spiral coils and the one or more second spiral coils to generate an electromagnetic field gradient configured to project away from the coil set and into an imaging region of the magnetic imaging system.

Abstract: A single-sided gradient coil set for single-sided magnetic resonance imaging system is disclosed. The coil set is configured to generate a magnetic field outwards away from the coil set. The coil set includes one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture. The coil set is configure to flow a current through the one or more first spiral coils and the one or more second spiral coils to generate an electromagnetic field gradient configured to project away from the coil set and into an imaging region of the magnetic imaging system.

Abstract: Some embodiments of the present disclosure disclose systems and methods for robust magnetic resonance image reconstruction that can model for all or nearly all components in the magnetic resonance imaging system, that possess compressibility features to speed up reconstructions, and that can be optimized such that the reconstruction can be performed within a short period of time.

Abstract: In accordance with various embodiments, a magnetic resonance imaging system is provided. In accordance with various embodiments, the system includes a housing having a front surface, a permanent magnet for providing a static magnetic field, a radio N frequency transmit coil, and at least one gradient coil set. In accordance with various embodiments, the radio frequency transmit coil and the at least one gradient coil set are positioned proximate to the front surface. In accordance with various embodiments, the radio frequency transmit coil and the at least one gradient coil set are configured to generate an electromagnetic field in a region of interest. In accordance with various embodiments, the permanent magnet has an aperture through center of the permanent magnet. In accordance with various embodiments, the region of interest resides outside the front surface.

Abstract: A single-sided gradient coil set for single-sided magnetic resonance imaging system is disclosed. The coil set is configured to generate a magnetic field outwards away from the coil set. The coil set includes one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture. The coil set is configure to flow a current through the one or more first spiral coils and the one or more second spiral coils to generate an electromagnetic field gradient configured to project away from the coil set and into an imaging region of the magnetic imaging system.