Method and system for monitoring an internal electrical impedance of a biological object including Internal Thoracic Impedance (ITI) comprising placing two arrays of electrodes on opposite sides of the biological object, wherein each of said two arrays comprise three equally spaced electrodes; imposing an alternating electrical current between pairs of the electrodes and obtaining voltage signals representative of a voltage drop thereon, calculating two values of internal electrical impedance of the biological object corresponding to the uttermost electrodes of said two arrays of electrodes placed on the opposite sides of the biological object.

A method for improved cardiac monitoring is disclosed. The method includes receiving image data from an image sensor configured for monitoring edema in a patient. Additional data is received from one or more additional sensors configured to monitor one or more factors related to cardiac activity of the patient. The received image data is fused with the received additional data from the one or more additional sensors to generate fused data set. A cardiac condition for the patient is determined based on the fused data set. A cardiac monitoring computing device and non-transitory medium are also disclosed.

A method and system for multi-electrode monitoring of an internal electrical impendance of a biological object using placing two arrays of electrodes on opposite sides of the biological object, wherein each of said two arrays comprise at least two spaced apart electrodes; performing session of measurements comprising imposing and alternating electrical current between pairs of said electrodes and obtaining voltage signals representative of a voltage drop thereon; calculating values of skin-electrode resistance for all said electrodes; comparing said calculated values of skin-electrode resistance therebetween, wherein result of the comparison exceeding a predetermined threshold value being representative of a potential failure in at least one of said electrodes.

A computer-implemented method of determining locations of transducers on a subject's body for applying tumor treating fields, the method including: selecting a plurality of pairs of locations on the subject's body, each pair of locations having a first location to locate a first transducer and a second location to locate a second transducer; obtaining, for each pair of locations, a voltage measurement and a current measurement for an electric field induced between the first transducer and the second transducer, the induced electric field passing through a tumor of the subject's body; calculating, for each pair of locations, a resistivity based on the voltage measurement and the current measurement; and selecting and outputting one or more recommended pairs of locations based on the calculated resistivities.

According to one aspect of the present disclosure, there is provided a method of estimating biometric information about a head using a machine learning, the method including: acquiring an analysis target optical signal detected from a head portion of a person to be measured by at least one optical sensor disposed on the head portion of the person to be measured; and estimating the biometric information about the head of the person to be measured by analyzing the acquired analysis target optical signal using an estimation model learned based on data about an anatomical structure of at least one head portion, data about a biometrical state of the at least one head portion, and data about an optical signal associated with the data about the anatomical structure of at least one head portion and the data about the biometrical state of the at least one head portion.

A method for measuring an intracranial bioimpedance in a patient's head, to help evaluate cerebral autoregulation, may involve securing a volumetric integral phase-shift spectroscopy (VIPS) device to the patient's head, measuring the intracranial bioimpedance with the VIPS device by measuring a phase shift between a magnetic field transmitted from a transmitter on one side of a VIPS device and a magnetic field received at a receiver on another side of the VIPS device, at one or more frequencies, and evaluating cerebral autoregulation in the intracranial bioimpedance, using a processor in the VIPS device.

Various systems and methods are provided for reducing pressure at an outflow of a duct, such as the thoracic duct or the lymphatic duct, for example, the right lymphatic duct. A catheter system can be configured to be at least partially implanted within a vein of a patient in the vicinity of an outflow port of a duct of the lymphatic system. The catheter system includes first and second selectively deployable restriction members each configured to be activated to at least partially occlude the vein within which the catheter is implanted and to thus restrict fluid within a portion of the vein. The catheter system includes an impeller configured to be driven by a motor to induce a low pressure zone between the restriction members by causing blood to be pumped through the catheter when the restriction members occlude the vein.

There is provided a system for monitoring a heart of a subject and monitoring impedance-related parameters, comprising: a feeding tube, an electrode disposed(s) on a distal end of the feeding tube, a controller that performs, while the feeding tube is in located in an esophagus and feeding is delivered to a subject via the feeding tube, in a plurality of iterations: continuously measuring voltage at the electrode(s) of the feeding tube, applying alternating current(s) between the electrode(s) of the feeding tube and at least one other electrode, computing impedance measurement(s) from the electrode(s) of the feeding tube according to the applied alternating current(s) and the measured voltage, computing impedance-related parameter(s) based on the impedance measurement(s), terminating the application of the alternating current(s), obtaining an electrocardiogram (ECG) measurement based on the voltage measured at the electrode(s) of the feeding tube, and providing the impedance-related parameter(s) and the ECG measurement.

An apparatus for measuring a body fluid includes: an optical sensor configured to emit light onto an object, receive the light returning from the object, and measure a first intensity of a first wavelength and a second intensity of a second wavelength from the received light; and a processor configured to estimate a body fluid volume of the object based on the first intensity and the second intensity.

Systems, devices, and methods for post-surgical joint range of motion measurement, activity monitoring, as well as monitoring compliance with post-operative extremity elevation and cooling recommendations are provided. The system comprises sensor(s) to be attached adjacent a joint of the patient, with limb attachment element(s), applications running on a computing device of the patient and medical practitioner, and a cloud-based backend system.