An electronic device according to one aspect includes a blood flow data acquisition unit configured to acquire information related to blood flowing inside a living body as blood flow data based on Doppler shift, a power spectrum calculator configured to calculate a power spectrum of the blood flow data based on the blood flow data, and an outline index calculator configured to calculate an outline index from the power spectrum. An electronic device according to one aspect further includes an estimator configured to estimate viscosity of the blood based on the outline index, and the estimator is configured to display an estimation result of the viscosity of the blood on a display.

The information processing apparatus according to the present technology includes a computation unit. The computation unit computes an evaluation value related to heart disease on the basis of a detection result of a blood flow rate. Accordingly, the heart disease status can be easily ascertained. For example, the BNP level and the NT-pro BNP level can be estimated non-invasively and bloodlessly without requiring a blood test at a medical institution. Moreover, remote monitoring at home and the like becomes possible and telemedicine systems of heart disease can be built, for example, because the measurement at a medical institution is unnecessary.

A system for determining a pulse velocity wave comprises an interface for receiving a signal indicating the proximal blood pressure in an artery and for receiving a signal indicating distal blood pressure in the artery. A processing device is configured to determine a proximal rising edge between a diastolic pressure and the systolic pressure of the proximal signal; determine a proximal pressure peak prior to the proximal rising edge; determine a distal rising edge between a diastolic pressure and a systolic pressure of the distal signal; determine a distal pressure peak prior to the distal rising edge and to determine whether the distal pressure peak is in phase advance with respect to the proximal pressure peak; and determine a propagation velocity of a regressive pulse wave depending on the phase advance of the distal pressure peak.

A method for estimating blood pressure of a care recipient includes establishing a pre-maneuver reference value of blood pressure and a companion nonreference value of blood pressure, subjecting the care recipient to a maneuver, establishing a post-maneuver reference value of blood pressure and a companion post-manuever nonreference value of blood pressure, establishing an operational post-maneuver nonreference value of blood pressure, and adjusting the operational value as a function of the pre-maneuver and post-maneuver values. An associated apparatus includes a sensor, a processor and a memory which contains instructions. The instructions, when executed, cause the processor to estimate blood pressure as a function of a pre-maneuver reference value of blood pressure, a companion pre-maneuver nonreference value of blood pressure, a post-maneuver reference value of blood pressure, a companion post-manuever nonreference value of blood pressure, and an operational value of blood pressure based on information sensed by the sensor.

A method for estimating blood pressure of a care recipient includes establishing a pre-maneuver reference value of blood pressure and a companion nonreference value of blood pressure, subjecting the care recipient to a maneuver, establishing a post-maneuver reference value of blood pressure and a companion post-manuever nonreference value of blood pressure, establishing an operational post-maneuver nonreference value of blood pressure, and adjusting the operational value as a function of the pre-maneuver and post-maneuver values. An associated apparatus includes a sensor, a processor and a memory which contains instructions. The instructions, when executed, cause the processor to estimate blood pressure as a function of a pre-maneuver reference value of blood pressure, a companion pre-maneuver nonreference value of blood pressure, a post-maneuver reference value of blood pressure, a companion post-manuever nonreference value of blood pressure, and an operational value of blood pressure based on information sensed by the sensor.

An electronic device comprises a sensor, a notifier and a controller. The sensor is urged to a test part side of an examinee and can detect pulsation at the test part. The notifier notifies information for a position of the sensor at the test part. The controller controls the notifier to notify information for a position of the sensor at the test part based on pulsation at the test part detected by the sensor.

The present invention relates to image processing devices and related methods. The image processing device (10) comprises a data input (11) for receiving spectral computed tomography volumetric image data organized in voxels. The image data comprises a contrast-enhanced volumetric image of a cardiac region in a subject's body and a baseline volumetric image of that cardiac region, e.g. a virtual non-contrast image, wherein the contrast-enhanced volumetric image conveys anatomical information regarding coronary artery anatomy of the subject. The device comprises a flow simulator (12) for generating, or receiving as input, a three-dimensional coronary tree model based on the volumetric image data and for simulating a coronary flow based on the three-dimensional coronary tree model. The device comprises a perfusion synthesis unit (13) for generating a perfusion image representative of a blood distribution in tissue at at least one instant in time taking at least the baseline volumetric image and said coronary flow simulation into account.

A system and method adapted for at least one health-related application selected from physiological monitoring, defibrillation, and pacing in the presence of electromagnetic interference (EMI) using the time-domain features of EMI patterns and physiological waveforms. The invention enables EMI detection and identification in a plurality of signals, including various physiological signals, which may contain both physiological information and EMI-generated artifacts. The system utilizes adaptive and versatile modular architecture with a set of modules for various filtering, conditioning, processing, and wireless transmission functions, which can be assembled in different configurations for different settings. In some preferred embodiments, the method and system of this invention are incorporated into (or attached to) an external cardiac defibrillator/monitor or cardiac pacing device. Other preferred embodiments include a wireless monitoring system that provides reliable wireless data transmission during patient table (bed) movement.

A device (10) for assessing a patient's absolute and/or relative risk of cognitive decline and/or dementia, the device (10) comprising: a probe (12) configured to be placed adjacent to a patient's common carotid artery, internal carotid artery or external carotid artery, at least two sensors (101, 102, 104, 106, 108, 110) associated with the probe (12), the sensors being configured to measure one or more of: wave intensity of carotid pulse; wave power of carotid pulse; and pressure waveform of carotid pulse, pulse wave velocity, artery compliance, artery stiffness, artery diameter; micro-emboli count; Heart rate variability; and changes to the eye or retina.

To provide a blood flow sensor in which a fluctuation of measurement results is suppressed during measurement of the blood flow volume. A probe portion is provided with a sensor portion which has a laser diode generating laser light, a photodiode receiving light, and a sensor housing having a contact surface contacting a subject and which irradiates a subject with the laser light generated by the laser diode through the contact surface, receives reflected light from the subject in the photodiode, and outputs a signal relating to the received light amount, a holding portion holding the sensor housing so as to be movable in an up-and-down direction crossing the contact surface, and a coil spring absorbing and transmitting external force applied to the holding portion to the sensor portion.