An apparatus, method and computer program is described comprising: varying a magnetic field strength of a magnetic field applied to a subject; determining a rate of power loss of the magnetic field, wherein the rate of power loss is a function of the varying magnetic field strength; and providing an output signal based on the determined rate of power loss, wherein the output signal comprises information relating to a conductivity distribution of the subject.

Disclosed is an optical coherence tomography (OCT) system according to an exemplary embodiment of the present disclosure. The OCT system may include: a light source unit generating light; an optical interferometer including an optical coupler splitting the light generated by the light source unit into first distribution light and second distribution light, a reference arm reflecting the first distribution light, a sample arm reflecting the second distribution light, and an optical detector detecting the light reflected by the reference arm and the sample arm; an OCT catheter including an optical fiber having a shape in which the optical fiber is insertable into at least a part of a human body and is rotatable and discharging the light to a tissue and collecting OCT data for the tissue; an OCT engine including a processor and a storage unit and processing the OCT data collected by the OCT catheter; and an OCT controller connected to a proximal end of the OCT catheter and controlling rotation of the OCT catheter.

A method for estimating total body water, TBW, content of a subject, comprises: receiving locally measured bioimpedances for at least two different frequencies of a stimulation current at a body part of the subject; determining a first resistance and a second resistance of the bioimpedance, wherein the first resistance corresponds to a representation of the bioimpedance being purely resistive at a low frequency of the stimulation current and the second resistance corresponds to a representation of the bioimpedance being purely resistive at a high frequency of the stimulation current; and estimating the TBW content of the subject using a ratio between the first resistance and the second resistance.

The embodiments disclose a test cartridge assembly system including a test cartridge assembly for loading of a test sample moving the fluid through the internal fluidic channels processing and presenting the sample to one or more electrochemical sensors for measuring analytes in the test sample, at least one fluidic channel formed directly in a rigid portion of an upper test cartridge assembly housing to form a fluidic path, a port coupled to the at least one fluidic channel for receiving a spring loaded vacuum source, a port coupled to the upper test cartridge assembly housing to communicate the vacuum through the upper cartridge housing into the fluidic path, and a functional layer coupled to the test cartridge assembly configured to provide electrical functionalities and interconnections to various fluidic components.

A medical imaging device configured to spatially resolve recording of multispectral video data of an examination area of a patient including a light source having multiple optical emitters with different wavelengths in the visible and NIR spectral range. The light source has an emitter whose wavelength lies in the range of ±50% of its half-width around the intersection of the blue and green filter curves or the green and red filter curves, and the exposure control and the data processing means are arranged to separately detect the affected two of the red and green or the green and blue colour signals in an exposure pattern with activation of the emitter at the intersection point and to evaluate them in the multispectral analysis with mutually different wavelengths shifted by the two affected filter curves as two supporting point wavelengths.

Techniques and apparatuses for determining fluid volumes of a patient are described. In one embodiment, for example, an apparatus may include at least one memory, and logic coupled to the at least one memory. The logic may be configured to receive baseline bioimpedance information for at least a portion of a human body at a baseline pressure, receive pressurized bioimpedance information of the portion of the human body at a pressurized pressure, the pressurized pressure greater than the baseline pressure and configured to substantially remove blood volume from the portion at the pressurized pressure, and determine at least one of interstitial fluid volume (V.sub.IT) or peripheral blood volume (BV.sub.P) based on the baseline bioimpedance information and the pressurized bioimpedance information. Other embodiments are described.

A health care management system for geospatial biosurveillance including a bioimpedance device. The health care management system provides real time data and analysis of an individual's physiological condition using bioimpedance data. The health care management system is further operable to monitor and model disease progression and remission based on physiological conditions during a pandemic event as well as modeling the treatment and remediation of long-lasting physiological symptoms and organ damage due to post-acute sequelae of SARS-CoV2 infection (PASC).

The present disclosure provides apparatuses and methods for measuring sub-epidermal moisture to provide clinicians with information related to physical conditions and ailments associated with accumulation or depletion of extracellular fluid.

A system for performing at least one impedance measurement on a biological subject, the system including a measuring device having a first housing including spaced pairs of foot drive and sense electrodes provided in electrical contact with feet of the subject in use, a second housing including spaced pairs of hand drive and sense electrodes provided in electrical contact with hands of the subject in use, at least one signal generator electrically connected to at least one of the drive electrodes to apply a drive signal to the subject, at least one sensor electrically connected to at least one of the sense electrodes to measure a response signal in the subject and a measuring device processor that at least in part controls the at least one signal generator, receives an indication of a measured response signal from the at least one sensor and generates measurement data indicative of at least one measured impedance value and a client device in communication with the measuring device, the client device being adapted to receive measurement data allowing the client device to display an indicator associated a result of the impedance measurement.

The present disclosure provides apparatuses and methods for measuring sub-epidermal moisture as an indication of tissue viability and providing information regarding the location of a boundary of non-viable tissue.