Abstract: A method for determining a health indicator parameter of a fluid are described. The method can include contacting at least one first functionalized electrode included in a plurality of functionalized electrodes of a sensing unit with a fluid. The method can also include generating a first electrical signal within the fluid by the at least one first functionalized electrode. The method can further include receiving, by at least one second functionalized electrode included in the plurality of functionalized electrodes of the sensing unit, a second electrical signal in response to the first electrical signal. The sensing unit can determine a health indicator parameter of the fluid based on the second electrical signal. The health indicator parameter can be associated with an electrochemical response signal included in the second electrical signal. The sensing unit can provide the health indicator parameter to a computing device communicably coupled to the sensing unit.

Abstract: Magnetic Resonance Imaging (MRI) receiver coil devices, including a MRI receiver coil or MRI receiver coil arrays, for use in a MRI guided High Intensity Focused Ultrasound system, and methods for manufacturing the same. A MRI receive coil device includes a flexible substrate having a first surface and a second surface opposite the first surface, and a pattern of conductive material formed on one or both of the first and second surfaces, the pattern including at least one receive coil and at least one capacitor, wherein the flexible substrate comprises a dielectric plastic material. In certain aspects, at least one layer of hydrophobic material covers the at least one receive coil and the at least one capacitor.

Abstract: Methods for forming conformal magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a 3-dimensional (3D) mold structure matching a curvilinear shape of interest, and forming a receive coil pattern on an outer surface of the 3D mold structure. The forming of the receive coil pattern may include spraying and/or depositing a conductive material and a dielectric material on the outer surface of the mold structure to form the receive coil pattern. The forming a receive coil pattern may include forming the receive coil pattern on an outer surface of a flat substrate sheet, and vacuum forming an inner surface of the flat substrate sheet to the outer surface of the mold structure to form a shape-conforming substrate sheet. The shape-conforming substrate sheet may be removed from the mold and used in MRI studies.

Abstract: A sensor having a sensor head including a unibody construction, a first electrode, and at least one second electrode is provided. The first electrode can include a first pair of sensing elements coupled to each over via at least one bridge element extending from a first sensing element to a second sensing element. The at least one second electrode can include a second pair of sensing elements interleaved with the first pair of sensing elements. The second pair of sensing elements can be coupled to each other via at least one second bridge element extending from a third sensing element to a fourth sensing element. A method of manufacturing the sensor is also provided.

Abstract: A sensor having a sensor head including a unibody construction, a first electrode, and at least one second electrode is provided. The first electrode can include a first pair of sensing elements coupled to each over via at least one bridge element extending from a first sensing element to a second sensing element. The at least one second electrode can include a second pair of sensing elements interleaved with the first pair of sensing elements. The second pair of sensing elements can be coupled to each other via at least one second bridge element extending from a third sensing element to a fourth sensing element. A method of manufacturing the sensor is also provided.

Abstract: Sensor circuitry utilizing feedback to balance sensor output data is provided. An apparatus can include a primary coil and a first secondary coil outputting a first voltage. The apparatus can also include a second secondary coil outputting a second voltage. The apparatus can further include circuitry coupled to the first secondary coil and the second secondary coil. The circuitry can be configured to receive the first voltage from the first secondary coil and the second voltage from the second secondary coil. The circuitry can also be configured to determine a feedback voltage based on a difference between the first voltage and the second voltage. The feedback voltage can correct the difference. The circuitry can also modify a third voltage that can be output by the circuitry to be zero based on the feedback voltage.

Abstract: Sensor circuitry utilizing feedback to balance sensor output data is provided. An apparatus can include a primary coil and a first secondary coil outputting a first voltage. The apparatus can also include a second secondary coil outputting a second voltage. The apparatus can further include circuitry coupled to the first secondary coil and the second secondary coil. The circuitry can be configured to receive the first voltage from the first secondary coil and the second voltage from the second secondary coil. The circuitry can also be configured to determine a feedback voltage based on a difference between the first voltage and the second voltage. The feedback voltage can correct the difference. The circuitry can also modify a third voltage that can be output by the circuitry to be zero based on the feedback voltage.

Abstract: Methods for forming flexible magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a flexible substrate having a first surface and a second surface opposite the first surface, forming a first conductor pattern on the first surface by printing a first layer of conductive material on the first surface using a printing mask having a pattern, and forming a second conductor pattern on the second surface by printing a second layer of conductive material on the second surface using the same printing mask or identical printing mask, wherein a portion of the first conductor pattern on the first surface overlaps with a portion of the second conductor pattern on the second surface with the flexible substrate therebetween to form the at least one capacitor element.

Abstract: A system including a sensor arranged on a machine and configured to measure one or more properties of a lubricant within the machine, a data hub communicatively connected to the sensor and configured to collect and store the measured one or more properties of the lubricant from the sensor, and a data processor communicatively connected to the data hub and configured to: calculate a maintenance threshold value based on the one or more properties of the lubricant from the sensor; compare the calculated maintenance threshold value to a maintenance threshold range; and output an alert when the calculated maintenance threshold value falls outside of the maintenance threshold range.

Abstract: Methods for forming conformal magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a 3-dimensional (3D) mold structure matching a curvilinear shape of interest, and forming a receive coil pattern on an outer surface of the 3D mold structure. The forming of the receive coil pattern may include spraying and/or depositing a conductive material and a dielectric material on the outer surface of the mold structure to form the receive coil pattern. The forming a receive coil pattern may include forming the receive coil pattern on an outer surface of a flat substrate sheet, and vacuum forming an inner surface of the flat substrate sheet to the outer surface of the mold structure to form a shape-conforming substrate sheet. The shape-conforming substrate sheet may be removed from the mold and used in MRI studies.

Abstract: A method of medical imaging includes performing a medical imaging scan to produce acquired imaging data; reconstructing from the acquired imaging data a multi-dimensional medical imaging dataset in the form of a sliceable compressed representation where the reconstruction does not at any stage create full decompressed images; and producing from the sliceable compressed representation a selected image slice by decompressing only a subset of the sliceable compressed representation. The sliceable compressed representation may be stored in a lossless format, and the selected image slice may be displayed on a viewer for visualization.

Abstract: A method for MRI imaging of a subject includes spatially encoding spins in a slice of the subject in orthogonal first and second directions. The encoding includes applying a chirped radiofrequency (RF) pulse concurrently with application of a magnetic field gradient pulse along the first direction. After applying of the RF pulse, a second chirped RF pulse is applied concurrently with application of a second magnetic field gradient pulse, with polarity opposite that of the first gradient pulse. An encoding magnetic field gradient, constant from applying the first RF pulse until the end of applying the second RF pulse, is concurrently applied along the second direction. Following the encoding, a spin signal is measured concurrently with application of a constant readout magnetic field gradient.

Abstract: In a volumetric fast spin-echo magnetic resonance imaging system a plurality of radio frequency pulses can be emitted. The plurality of radio frequency pulses can be directed toward a target sample. The plurality of radio frequency pulses can have a set of repetition times. The set of repetition times can define a frequency at which the plurality of radio frequency pulses are emitted. The set of repetition times can be varied during the emitting of the plurality of the radio frequency pulses. Magnetic resonance imaging data of a target sample can be received. A pseudo-random sampling pattern can be used to facilitate the receiving of the magnetic resonance imaging data having multiple magnetic resonance imaging contrasts for a single scan.

Abstract: Magnetic Resonance Imaging (MRI) receiver coil devices, including a MRI receiver coil or MRI receiver coil arrays, for use in a MRI guided High Intensity Focused Ultrasound system, and methods for manufacturing the same. A MRI receive coil device includes a flexible substrate having a first surface and a second surface opposite the first surface, and a pattern of conductive material formed on one or both of the first and second surfaces, the pattern including at least one receive coil and at least one capacitor, wherein the flexible substrate comprises a dielectric plastic material. In certain aspects, at least one layer of hydrophobic material covers the at least one receive coil and the at least one capacitor.

Abstract: A method for MRI imaging of a subject includes spatially encoding spins in a slice of the subject in orthogonal first and second directions. The encoding includes applying a chirped radiofrequency (RF) pulse concurrently with application of a magnetic field gradient pulse along the first direction. After applying of the RF pulse, a second chirped RF pulse is applied concurrently with application of a second magnetic field gradient pulse, with polarity opposite that of the first gradient pulse. An encoding magnetic field gradient, constant from applying the first RF pulse until the end of applying the second RF pulse, is concurrently applied along the second direction. Following the encoding, a spin signal is measured concurrently with application of a constant readout magnetic field gradient.

Abstract: Methods for forming flexible magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a flexible substrate having a first surface and a second surface opposite the first surface, forming a first conductor pattern on the first surface by printing a first layer of conductive material on the first surface using a printing mask having a pattern, and forming a second conductor pattern on the second surface by printing a second layer of conductive material on the second surface using the same printing mask or identical printing mask, wherein a portion of the first conductor pattern on the first surface overlaps with a portion of the second conductor pattern on the second surface with the flexible substrate therebetween to form the at least one capacitor element.

Abstract: A method for an object in a magnetic resonance image (MRI) system for providing at least one velocity indicative magnetic resonance image (MRI) with motion correction of the object is provided. Velocity encoding gradients in at least one spatial direction are provided from the MRI system. Spatial frequency data resulting from the encoding gradients are acquired through the MRI system. Image signals are provided by the MRI system. Image data resulting from the image signals are acquired through the MRI system. At least one motion corrected and velocity indicative magnetic resonance image is created from the acquired spatial frequency data and image data.

Abstract: In a volumetric fast spin-echo magnetic resonance imaging system a plurality of radio frequency pulses can be emitted. The plurality of radio frequency pulses can be directed toward a target sample. The plurality of radio frequency pulses can have a set of repetition times. The set of repetition times can define a frequency at which the plurality of radio frequency pulses are emitted. The set of repetition times can be varied during the emitting of the plurality of the radio frequency pulses. Magnetic resonance imaging data of a target sample can be received. A pseudo-random sampling pattern can be used to facilitate the receiving of the magnetic resonance imaging data having multiple magnetic resonance imaging contrasts for a single scan.

Abstract: A Magnetic Resonance Imaging (MRI) receiver includes a receiver coil on a substrate. The receiver coil includes one or more capacitors. The construction of the capacitors allows for the use of very flexible substrates and allows the capacitors themselves to be highly flexible. The increased flexibility permits the MRI receiver to be conformed to the body of a patient and accordingly improves the MRI process.

Abstract: A Magnetic Resonance Imaging (MRI) receiver includes a receiver coil on a substrate. The receiver coil includes one or more capacitors. The construction of the capacitors allows for the use of very flexible substrates and allows the capacitors themselves to be highly flexible. The increased flexibility permits the MRI receiver to be conformed to the body of a patient and accordingly improves the MRI process.