Abstract: A magnetic resonance imaging (MRI) gradient coil assembly includes a substrate and first hollow conductor coil. The substrate has a surface. The first hollow conductor coil includes a first coiled portion and a first end run portion joined by a first eye lead portion. The first coiled portion defines a series of increasing radius loops disposed on the surface of the substrate, with an outer loop of the first coiled portion defining a coiled portion boundary. The first eye lead portion is disposed in a central portion of the first coiled portion. The first end run portion extends continuously from the first coiled portion via the first eye lead portion beyond the coiled portion boundary.

Abstract: A magnetic resonance imaging (MRI) gradient coil assembly includes a substrate and first hollow conductor coil. The substrate has a surface. The first hollow conductor coil includes a first coiled portion and a first end run portion joined by a first eye lead portion. The first coiled portion defines a series of increasing radius loops disposed on the surface of the substrate, with an outer loop of the first coiled portion defining a coiled portion boundary. The first eye lead portion is disposed in a central portion of the first coiled portion. The first end run portion extends continuously from the first coiled portion via the first eye lead portion beyond the coiled portion boundary.

Abstract: Magnetic material imaging (MMI) system including a first array of elongated wire segments that extend substantially parallel to an imaging plane. The imaging plane is configured to extend through a region-of-interest (ROI) of an object. The MMI system also includes a second array of elongated wire segments that extend substantially parallel to the imaging plane. The first and second arrays of wire segments are spaced apart with the imaging plane therebetween. The first and second arrays of wire segments form segment pairs. Each segment pair includes a wire segment of the first array and a wire segment of the second array, wherein the wire segments substantially coincide along a segment plane. The MMI system also includes a phase-control module configured to control a flow of current through the wire segments of the segment pairs to generate and move a one-dimensional field free region (1D FFR) within the imaging plane.

Abstract: Magnetic material imaging (MMI) system including a first array of elongated wire segments that extend substantially parallel to an imaging plane. The imaging plane is configured to extend through a region-of-interest (ROI) of an object. The MMI system also includes a second array of elongated wire segments that extend substantially parallel to the imaging plane. The first and second arrays of wire segments are spaced apart with the imaging plane therebetween. The first and second arrays of wire segments form segment pairs. Each segment pair includes a wire segment of the first array and a wire segment of the second array, wherein the wire segments substantially coincide along a segment plane. The MMI system also includes a phase-control module configured to control a flow of current through the wire segments of the segment pairs to generate and move a one-dimensional field free region (1D FFR) within the imaging plane.

Abstract: The present invention provides a method and apparatus of amplifying the signal of at least one NMR spectrum and of at least one MRI of hyperpolarized xenon. In an embodiment, the invention includes dissolving the hyperpolarized xenon in a liquid via an input membrane, thereby resulting in xenon in liquid phase, encoding information in the longitudinal magnetization of the nuclear spins of the xenon in liquid phase via an encoding coil surrounding an encoding phantom coupled to an output of the input membrane and via an encoding magnet, thereby resulting in encoded xenon, extracting the encoded xenon into the gas phase from the liquid phase via an extraction membrane coupled to an output of the encoding phantom, thereby resulting in encoded xenon in the gas phase, and decoding the encoded information from the encoded xenon in gas phase via a detection coil coupled to an output of the extraction membrane.