A radio frequency (RF) surface coil unit and a magnetic resonance imaging (MRI) system including the same are provided. The RF surface coil unit is a bulk-type RF surface coil, and includes a plurality of RF coil elements formed on a cylindrical-shaped base, wherein at least one pair of the plurality of RF coil elements include facing RF coil elements that are electrically connected to each other and are formed as one channel.

A medical radiofrequency coil may comprise: a base substrate; and a radio coil unit having a first coil element which has a rectangular shape and is formed along an edge of the inner peripheral surface of the base substrate, and a second coil element which is formed at the inner side of the first coil element and has a shape of paired paddles connected to each other. Therefore, the present inventive concept provides a radiofrequency coil, which can minimize an image distortion due to a beam-hardening artifact effect, and a medical imaging device including the same.

This disclosure generally relates to stable water isotope labeling followed by detection via MRI (swiMRI), including deuterium MRI (dMRI) and .sup.17O MRI, for visualizing rapidly dividing immune cells within target and/or lymphoid organ/s and/or tissues affected by chronic graft-versus-host disease (cGVHD). Using deuterated water labeling, followed by dMRI, a distinction in deuterium signal was detected in a target organ (e.g. liver) of the cGVHD-affected mice compared to unaffected mice, i.e. syngeneic HSCT recipient mice, where the host and donor are matched, and normal (unmanipulated) mice.

An apparatus for nuclear magnetic resonance therapy comprises a bed, two opposing sweep coils, as well as an upper coil and a lower coil for generating an alternating magnetic field.

Here we present a solid-state spin sensor with enhanced sensitivity. The enhanced sensitivity is achieved by increasing the T.sub.2* dephasing time of the color center defects within the solid-state spin sensor. The T.sub.2* dephasing time extension is achieved by mitigating dipolar coupling between paramagnetic defects within the solid-state spin sensor. The mitigation of the dipolar coupling is achieved by applying a magic-angle-spinning magnetic field to the color center defects. This field is generated by driving a magnetic field generator (e.g., Helmholtz coils) with phase-shifted sinusoidal waveforms from current source impedance-matched to the magnetic field generator. The waveforms may oscillate (and the field may rotate) at a frequency based on the precession period of the color center defects to reduce color center defect dephasing and further enhance measurement sensitivity.

An HF resonator assembly generates at least two independent alternating magnetic fields in a test volume of a magnetic resonance apparatus. The HF resonator assembly includes a first pair of flat coils that form a first HF resonator and comprise electrical conductor portions that surround a planar surface portion. The flat coils are arranged on opposing sides of the test volume, on coil support plates that are mutually parallel and in parallel with the longitudinal axis. A second pair of flat coils forms a second HF resonator on second coil support plates. The projections of the planar surface portions of the flat coils in each of the first pair of flat coils and the second pair of flat coils overlap in part, but not completely, when viewed in a direction perpendicular to the respective planar surface portions.

An apparatus for nuclear magnetic resonance therapy comprises a bed, two opposing sweep coils, as well as an upper coil and a lower coil for generating an alternating magnetic field.

Disclosed embodiments provide a tool and methodologies for delivering drugs into articular cartilage of a subject's body.

A nuclear magnetic flowmeter (1) for determining the flow of a medium flowing through a measuring tube (2) having a magnetic field generator (4), a measuring unit (5) and an antennae unit (6) with an antenna (7). wherein the antennae unit (6) has at least one further antenna (11, 12), that is designed as a coil and is designed for transmitting the excitation signal to the magnetized medium (3) and for detecting the measuring signal over a further measuring section (13, 14) aligned parallel to the longitudinal axis (8) of the measuring tube and located in the magnetic field path (9), and the measuring section (10) and the further measuring section (13, 14) are different.

A high-frequency magnetic field generating device includes two coils arranged with a predetermined gap in parallel with each other, the two coils (a) in between which electron spin resonance material is arranged or (b) arranged at one side from electron spin resonance material; a high-frequency power supply that generates microwave current that flows in the two coils; and a transmission line part connected to the two coils, that sets a current distribution so as to locate the two coils at positions other than a node of a stationary wave.