A magnetic inductance tomography (MIT) device for imaging a tissue of a patient can include multiple coils, electronic circuitry, and one or more processors. The electronic circuitry can separately energize individual coils of the multiple coils to generate magnetic fields perturbed by the tissue. The one or more processors can receive MIT signals responsive to the magnetic fields perturbed by the tissue and process the MIT signals to generate an MIT image. The MIT signals can include a first MIT signal generated by a first coil of the multiple coils and a second MIT signal generated by a second coil of the multiple coils. The first MIT signal can be indicative of a characteristic of the tissue at a different depth in the tissue from a surface of the tissue than the second MIT signal.

An electromagnetic tomographic scanner, for use in imaging a live human body part, includes an imaging chamber, a plurality of antennas, a controller, a lid, and a quantity of matching media. The imaging chamber is supported on the base, defines an imaging domain in that receives the head, and has an open end. The antennas are supported by the imaging chamber and encircle the imaging domain. The controller controls one or more antenna. The lid is attachable to the open end and includes a hollow boundary model that mimics a part of human anatomy that is outside the imaging domain. The matching media fills the interior of the model while an empty field measurement is carried out. Various tensors may be produced.

An electromagnetic tomographic scanner, for use in imaging a live human body part, includes an imaging chamber, a plurality of antennas, a controller, a lid, and a quantity of matching media. The imaging chamber is supported on the base, defines an imaging domain in that receives the head, and has an open end. The antennas are supported by the imaging chamber and encircle the imaging domain. The controller controls one or more antenna. The lid is attachable to the open end and includes a hollow boundary model that mimics a part of human anatomy that is outside the imaging domain. The matching media fills the interior of the model while an empty field measurement is carried out. Various tensors may be produced.

An electromagnetic tomographic system for imaging a human head includes a base, an imaging chamber, at plurality of antennas, a plurality of antenna controllers, and an image processing computer system. The imaging chamber is supported on the base and defines an imaging domain in that receives the head. The antennas are supported by the imaging chamber and encircle the imaging domain. Each controller is dedicated to a respective antenna and includes RF transceiver circuitry having a transmit side and receive side that are alternately connected to the antenna using an RF switch. In operation, while one antenna is transmitting an electromagnetic signal into the imaging domain, a plurality of the antennas are simultaneously receiving the signal after passing through the imaging domain. The received signals of the plurality of antennas are simultaneously measured. Data representative of the measure electromagnetic signals is output by the controllers and used for image processing.

An electromagnetic tomographic system for imaging a human head includes a base, an imaging chamber, at plurality of antennas, a plurality of antenna controllers, and an image processing computer system. The imaging chamber is supported on the base and defines an imaging domain in that receives the head. The antennas are supported by the imaging chamber and encircle the imaging domain. Each controller is dedicated to a respective antenna and includes RF transceiver circuitry having a transmit side and receive side that are alternately connected to the antenna using an RF switch. In operation, while one antenna is transmitting an electromagnetic signal into the imaging domain, a plurality of the antennas are simultaneously receiving the signal after passing through the imaging domain. The received signals of the plurality of antennas are simultaneously measured. Data representative of the measure electromagnetic signals is output by the controllers and used for image processing.

An electromagnetic tomographic scanner, for use in imaging a live human body part, includes an imaging chamber, a plurality of antennas, a controller, a lid, and a quantity of matching media. The imaging chamber is supported on the base, defines an imaging domain in that receives the head, and has an open end. The antennas are supported by the imaging chamber and encircle the imaging domain. The controller controls one or more antenna. The lid is attachable to the open end and includes a hollow boundary model that mimics a part of human anatomy that is outside the imaging domain. The matching media fills the interior of the model while an empty field measurement is carried out. Various tensors may be produced.

An electromagnetic tomographic scanner, for use in imaging a live human body part, includes an imaging chamber, a plurality of antennas, a controller, a lid, and a quantity of matching media. The imaging chamber is supported on the base, defines an imaging domain in that receives the head, and has an open end. The antennas are supported by the imaging chamber and encircle the imaging domain. The controller controls one or more antenna. The lid is attachable to the open end and includes a hollow boundary model that mimics a part of human anatomy that is outside the imaging domain. The matching media fills the interior of the model while an empty field measurement is carried out. Various tensors may be produced.

A method of passively detecting radiofrequency (RF) signals spontaneously emitted by a non-equilibrium population of electrons that are spin polarized by flowing through a chiral media during relaxation of the spin polarized electrons to equilibrium at a frequency corresponding to a Zeeman spin-flip energy of the spin polarized electrons under influence of a magnetic field (MF). The MF is applied to the chiral media for a predefined time period to shift a frequency and magnitude of the spontaneously emitted RF signals in line with Zeeman effect. The shifted emitted RF signals is passively detected and stored for medical use applications using a receiver antenna tuned to a resonant frequency of the shifted emitted RF signals.

A computer-implemented process for continuous monitoring of a brain stroke during a critical rehabilitation period, the process including the steps of: (i) accessing initial image data representing an initial image of a subjects brain containing a stroke region; (ii) accessing scattering parameter data representing microwaves scattered by the subjects brain and originating from a plurality of antennas disposed around the subjects brain; and (iii) processing the scattering parameter data and the initial image data using a gradient-free optimisation method to generate estimates of spatial dimensions of the stroke region within the subjects brain, wherein the initial image of the subjects brain is used as a priori information to improve the accuracy of the generated estimates, and the spatial dimensions of the stroke region are generated as global parameters of the gradient-free optimisation method.

An inductive sensing system (8) is adapted to apply electromagnetic excitation signals into a body, the system comprising a resonator circuit (10) incorporating a loop antenna (12). The system senses signals returned back from the body with the same antenna, based on variation in electrical characteristics of the resonator circuit. The system is configured for separating signals received from different physiological sources within the body. This is performed based on detecting in the resonator circuit electrical characteristics indicative of both a real and an imaginary part of an additional inductance component added to the antenna by received electromagnetic signals. The separating the signals from different physiological sources is based on relative magnitudes of said detected real and imaginary inductance components added to the resonator circuit by the returned signals.