Abstract: A method of quantifying sodium concentration can include extracting one or more bi-T2 sodium signals from one or more echo time acquisitions. The method can include separating, via a matrix equation including at least one of T2 decays or T2* decays of mono-T2 sodium and bi-T2 sodium, an intensity of the one or more bi-T2 sodium signals from an intensity of one or more mono-T2 sodium signals. The method can include quantifying bi-T2 sodium concentration, mono-T2 sodium concentration, and total sodium concentration based on the one or more echo time acquisitions. The one or more echo time acquisitions can be performed with single-quantum sodium excitations.

Abstract: A wearable device and method for noninvasive and continuous monitoring of blood glucose level in a patient. The device may include a unilateral permanent magnet generating a static magnetic field to a target area under the skin of the patient, the target area comprising blood vessels and tissue surrounding the blood vessels. The device may also include a transmitter delivering a radiofrequency (RF) field to the target area to excite proton nuclear spins in the target area, wherein at least a portion of the transmitter is positioned between the magnet and the skin. The device may further include a sensor detecting a RF signal from the excited proton nuclear spins in the target area. A processing arrangement may receive data corresponding to the detected RF signal from the sensor and determine a level of blood glucose in the patient based on the data.

Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.

Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.

Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.

Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.