A diagnostic support apparatus includes a computing unit that computes a decreasing rate of a current intensity of an inward current flowing into a nerve pathway, based on magnetic field data obtained by measuring a magnetic field generated by a subject.

A diagnostic support apparatus includes a computing unit that computes a decreasing rate of a current intensity of an inward current flowing into a nerve pathway, based on magnetic field data obtained by measuring a magnetic field generated by a subject.

An actuated magnetic field is generated at a plurality of distinct frequencies that at least partially cancels an outside magnetic field at the plurality of distinct frequencies, thereby yielding a total residual magnetic field. The total residual magnetic field is coarsely detected and a plurality of coarse error signals are respectively output. The total residual magnetic field is finely detected and a plurality of fine error signals are respectively output. The actuated magnetic field is controlled respectively at the plurality of distinct frequencies at least partially based on at least one of the plurality of coarse error signals, and finely controlled respectively at the plurality of distinct frequencies at least partially based on at least one of the plurality of fine error signals.

An actuated magnetic field is generated at a plurality of distinct frequencies that at least partially cancels an outside magnetic field at the plurality of distinct frequencies, thereby yielding a total residual magnetic field. The total residual magnetic field is coarsely detected and a plurality of coarse error signals are respectively output. The total residual magnetic field is finely detected and a plurality of fine error signals are respectively output. The actuated magnetic field is controlled respectively at the plurality of distinct frequencies at least partially based on at least one of the plurality of coarse error signals, and finely controlled respectively at the plurality of distinct frequencies at least partially based on at least one of the plurality of fine error signals.

A method and apparatus generate electrical currents and/or voltage in tissue using particles composed of liquid crystals and magnetic particles.

Systems and methods for measuring the magnetic fields generated by renal nerves before and/or after neuromodulation therapy are disclosed herein. One method for measuring the magnetic field of target nerves during a neuromodulation procedure includes positioning a neuromodulation catheter at a target site within a renal blood vessel of a human patient near the target nerves, and detecting a measurement of the magnetic field generated by the target nerves. The method can further include determining, based on the measurement of the magnetic field, a location of the target nerves, a location of ablation at the target nerves, and/or a percentage the target nerves were ablated by delivered neuromodulation energy.

The present invention addresses the problem of providing a muscle activity measurement device and a muscle activity measurement method which make it possible to measure the muscle activity of an object to be sensed with increased accuracy. The muscle activity measurement device 1 according to the present invention is provided with a magnetic sensor unit 11 which senses a magnetic field generated from a living body, and an identification means which identifies an installed direction of the muscle activity measurement device 1. The identification means includes an indication 24, on a surface of a container 20, which comprises identification information for installing the muscle activity measurement device 1 in such a way that a magnetism sensing direction X of the magnetic sensor unit 11 and the direction in which the muscle fibers of the living body as the object to be sensed extend are substantially orthogonal to each other.

A diagnostic support system includes a spinal cord/spinal nerve evoked magnetic field data acquisition device configured to acquire spinal cord/spinal nerve evoked magnetic field data and a medical image information acquisition device configured to acquire first medical image information having each pixel associated with a corresponding pixel of visualized data of the spinal cord/spinal nerve evoked magnetic field data. The diagnostic support system superimposes the visualized data of the spinal cord/spinal nerve evoked magnetic field data on second medical image information based on information included in the first medical image information.

A magnetic field measuring apparatus includes an A/D conversion unit, an integration unit, and a post-processing unit. The A/D conversion unit is configured to sample a signal at a predetermined sampling frequency and perform conversion into digital data, the signal being based on an output voltage from a superconducting quantum interference device configure to detect a magnetic field emanating from a living organism. The integration unit is configured to obtain a biological magnetic field signal based on a value obtained by integrating the digital data, the biological magnetic field signal indicating a magnetic field emanating from the living organism. The post-processing unit is configured to perform decimation processing on the biological magnetic field signal output from the integration unit.

A magnetic field measuring apparatus includes an A/D conversion unit, an integration unit, and a post-processing unit. The A/D conversion unit is configured to sample a signal at a predetermined sampling frequency and perform conversion into digital data, the signal being based on an output voltage from a superconducting quantum interference device configure to detect a magnetic field emanating from a living organism. The integration unit is configured to obtain a biological magnetic field signal based on a value obtained by integrating the digital data, the biological magnetic field signal indicating a magnetic field emanating from the living organism. The post-processing unit is configured to perform decimation processing on the biological magnetic field signal output from the integration unit.