Abstract: A system and/or method for diagnosing a neurologic condition. The system comprises a wearable head orientation sensor, a wearable eye imaging module, and a display with a visual target. The head orientation sensor is responsive to pitch or yaw head orientation information. The eye imaging module is configured for imaging a characteristic of the retina, sclera, cornea, limbus, or pupil to determine an eye position or eye movement. An electronic circuit in the system determines an ocular parameter measurement in response to the head orientation sensor and the eye imaging module. The neurologic condition is diagnosed in response to the ocular parameter measurement.

Abstract: Systems and methods for correlating inputs found external to a user to inputs measured from the user are disclosed, using wearables, various types of non-wearable sensors, and other external data sources and mobile device technology. Pattern matching and rules can be used to provide useful suggestions or control external machines based on the correlated inputs.

Abstract: Embodiments herein relate to ear-wearable systems and devices that can detect allergic reactions. In an embodiment, an ear-wearable device is included having a control circuit, a microphone, and a sensor package. The ear-wearable device can be configured to evaluate at least one of signals from the microphone, signals from the sensor package, signals from an external sensor, and contextual factor data, and detect an allergic reaction based on the evaluation. In an embodiment, an ear-wearable device system is included having a first ear-wearable device and a second ear-wearable device. In an embodiment, a method of predicting or detecting the onset or presence of an allergic reaction with an ear-wearable system is included. Other embodiments are also included herein.

Abstract: An active implantable medical device (IMD) which, in operation: repeatedly senses a body temperature of a person having the IMD implanted therein; stores the sensed body temperature values; repeatedly senses a cardiac physiologic parameter of the person; stores the sensed cardiac physiologic parameter values; determines whether one of the body temperature values exceeds a predefined body temperature threshold; if an excess is determined, the IMD: determines whether one of the cardiac physiologic parameter values exceeds a predefined cardiac physiologic parameter threshold, wherein the one cardiac physiologic parameter value is determined in the same time period as the one body temperature value exceeding the body temperature threshold; classifies an infection of the person as a local infection if the one cardiac physiologic parameter value does not exceed the threshold; or classifies an infection of the person as a systemic infection if the one cardiac physiologic parameter value exceeds the threshold.

Abstract: The disclosure provides a modified EPI sequence for acquiring multi-shot and multi-echo images with interleaved blip-up and blip-down phase encoding; the blip-up and blip-down images are processed by topup in FSL to estimate the inhomogeneous main magnetic field B0 map that causes image distortions; the B0 map is then incorporated into the encoding matrix with a low rank constraint to form a joint reconstruction model; the joint reconstruction model is solved to obtain multiple distortion-free images; and the multiple distortion-free images are matched to dictionary to simultaneous acquire the quantitative T2 (=1/R2) and T2* (=1/R2*) maps. In the phantom and in-vivo measurements, the disclosed method rapidly acquires the comparable quantitative images within one hold-breath (for 20 s) to the conventional mapping method, thus providing important practical application value for evaluation of liver damage, iron level and cancer lesion.

Abstract: A sweat sensor includes a first conductor and a second conductor that are parallel with one another. The sweat sensor also includes a channel disposed between the first and second conductors. The channel is configured to receive a sample of sweat. A measure of capacitance between the first and second conductors changes based at least partially upon a volume of the sweat in the channel.

Abstract: A patient support apparatus comprises a plurality of load cells, a frame supported on the load cells, a mattress, a plurality of air pressure sensors, and a control system. The mattress includes a plurality of inflatable zones positioned on the frame, the mattress and frame cooperating to direct any patient load through the mattress and frame to the load cells. Each of the plurality of air pressure sensors measures the pressure in a respective inflatable zone of the mattress. The control system includes a controller operable to receive a separate signal from each of the plurality of load cells and each of the plurality of air pressure sensors and process the signals to identify motion of the patient.

Abstract: A computer system provides patient monitoring and treatment using implanted biosensors. Data associated with a target joint of a patient is collected via one or more implanted biosensors. A plurality of feature values are extracted from the data. The plurality of feature values are processed using a trained classification model to select a recommendation. The recommendation is provided to mitigate hemophilia-related injury to the target joint. Embodiments of the present invention further include a method and program product for providing patient monitoring and treatment using implanted biosensors in substantially the same manner described above.

Abstract: A processing device, program, method, and processing system are provided which can be more simply used by a user when estimating a condition during exercise or assisting estimation. The processing device comprises: an input/output interface configured to receive an acceleration rate detected, in a wired or wireless manner, from a sensor which is attached to or around the knee of a leg of a person and is for detecting at least the acceleration rate of the person during exercise; a memory configured to store the received acceleration rate in addition to a predetermined instruction command; and a processor configured to perform processing for estimating the condition of the knee joint of the person during exercise on the basis of the acceleration rate by executing the predetermined instruction command stored in the memory.

Abstract: An information processing device (14) extracts a feature value which is an acoustic parameter from audio data. The information processing device (14) generates a spectrogram image of the audio data. The information processing device (14) calculates, on the basis of the feature value and a calculation model, a first score which indicates the extent of a user's psychiatrically-based disorder or neurologically-based disorder, or mental disorder symptom or cognitive dysfunction symptom. The information processing device (14) inputs the spectrogram image to a learned model, and calculates a second score which indicates the extent of the user's psychiatrically-based disorder or neurologically-based disorder, or mental disorder symptom or cognitive dysfunction symptom.

Abstract: A method and system are disclosed for use in monitoring/screening/diagnosing sleep or wake state of a subject or patient. The method generally includes monitoring the patient's activity during one or more sleep sessions comprising a plurality of intervals known as epochs. The sleep/wake state of the subject is determined during each epoch of the session using actigraphy data obtained during the monitoring session. The actigraphy data provides information about the activity of a patient during an epoch. The sleep or wake state is determined based on a ratio of the activity count during an epoch to the activity count during a preceding epoch. If the ratio is greater than a first activity threshold, then a “wake” indication may be provided by, for example, the system. Alternatively, or additionally, a “wake” indication may be determined if the activity count during the epoch is greater than a threshold.

Abstract: The present invention relates generally to systems, devices, and methods for tracking compliance of orthodontic appliance usage, and more specifically to systems, devices, and methods for tracking compliance of orthodontic appliance usage using a compliance device and/or a light therapy apparatus. The invention provides compliances device that can be configured to be disposed within a patient's mouth. In some embodiments, the compliance device can comprise a sensor configured to detect an input associated with whether an orthodontic appliance is at least partially disposed within the patient's mouth at a first time and at a second time, with the second time being subsequent to the first time.

Abstract: A portable system is provided for measuring an analyte, such as acetone, in the breath or other bodily fluid of a user. The system includes a portable measurement device that analyzes fluid samples and generates corresponding measurements. The portable measurement device communicates with an application which runs on a smartphone or other mobile device of the user, and the application reports measurement data to a remote system.

Abstract: The disclosure provides a comprehensive limbal stem cell deficiency diagnostic and staging system that combines observations of physiological parameters such as clinical presentation, central cornea basal cell density, central corneal epithelial thickness, and total corneal nerve fiber length. It has been discovered that the methodology disclosed herein can both accurately and objectively diagnose limbal stem cell deficiency as well as stage its severity.

Abstract: A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

Abstract: A method for estimating a metabolic rate of a user includes obtaining pulse oximetry data for the user for a period of time. The method includes determining a rate of decline in oxygen saturation of blood of the user that is associated with a breathing rate of the user for the period of time based, at least in part, on the pulse oximetry data. The method includes estimating the metabolic rate of the user for the period of time based, at least in part, on the rate of decline in the oxygen saturation of the blood that is associated with the breathing rate of the user. The method includes providing a notification indicative of the metabolic rate for the period of time.

Abstract: The electronics module (100) comprises a housing (101) comprising an opening (17). A processor (109). A flexible electronics structure (500) comprising a flexible substrate on which an electronics component 105 is provided. The electronics component (105) is communicatively connected to the processor 109. The flexible substrate extends through the opening (17) in the housing (101) such that the electronics component (105) is located at least partially outside of the housing (101). The processor is located within the housing.

Abstract: A wearable biological signal measuring element is attached to a garment and detachably connected to a controller, the wearable biological signal measuring element including: an electrode in contact with skin; an electric line connected to the electrode; an electric connector connected to the electric line, penetrating the garment, and detachably connected to the controller outside the garment; and a water supply mechanism including a water guiding mechanism and a first water tank connected to an opening of the water guiding mechanism inside the garment and including a through hole in a contact surface with the electrode.

Abstract: A zipper-type circuit fabric and smart clothes composed thereof include a clothes body. The clothes body is made of waterproof conductive fabric body. The waterproof conductive fabric body includes a plurality of conductive wires and conductive contacts. Rectangular elongated conductive media and folded conductive media are arranged inside the conductive wires so that the conductive media are stable and ductile. The clothes body is further provided with a waterproof zipper body. The zipper teeth on the waterproof zipper body are all electrically connected to the conductive wires. When the zipper body is closed, a metal probe on a zipper tooth is placed into a connecting slot so that the left and right sides of the clothes body form a closed circuit. The clothes body can be connected to glove bodies and includes a plurality of flexible sensors internally.

Abstract: An electronic device, such as a watch, has a housing to which a carrier is attached. The carrier has a first surface interior to the electronic device, and a second surface exterior to the electronic device. A set of electrodes is deposited on the exterior surface of the carrier. An additional electrode is operable to be contacted by a finger of a user of the electronic device while the first electrode is positioned against skin of the user. The additional electrode may be positioned on a user-rotatable crown of the electronic device, on a button of the electronic device, or on another surface of the housing of the electronic device. A processor of the electronic device is operable to determine a biological parameter of the user based on voltages at the electrodes. The biological parameter may be an electrocardiogram.

Abstract: Disclosed are a wearable multi-index integrated physiological intelligent sensor system and a physiological index monitoring method. The system includes a device body and an intelligent terminal.

Abstract: A system provides ECG monitoring for a user. The system includes an in-ear device and processor. The in-ear device includes in-ear electrodes that capture electrical signals of the pulses of the heartbeat of the user from within the user's ear canal, and an out-of-ear electrode that does not contact any surface of the user's ear or ear canal, and captures electrical signals of pulses of the heartbeat of the user from a fingertip of the user when the user contacts the out-of-ear electrode with their fingertip. The processor generates ECG data using captured electrical signals responsive to a determination that the user has positioned a finger to touch the out-of-ear electrode on the in-ear device. This configuration allows the out-of-ear electrode to, when touched by the user's fingertip, effectively function as an arm electrode, allowing for ECG data to be measured from two different angles, through a path that passes through the user's heart.

Abstract: Embodiments herein relate to ear-wearable systems and devices for detecting heat stress and related methods. In an embodiment, an ear-wearable heat stress risk assessment system is included having a control circuit, a microphone, and a sensor package. The system is configured to process signals of one or more sensors of the sensor package and/or the microphone, detect dehydration symptoms, environmental conditions, and activity levels of a device wearer based on the processed signals, and determine a heat stress risk level based on detected dehydration symptoms, environmental conditions, and activity levels of the device wearer. Other embodiments are also included herein.

Abstract: A mouth guard senses impact forces and determines if the forces exceed an impact threshold. If so, the mouth guard notifies the user of the risk for injury by haptic feedback, vibratory feedback, and/or audible feedback. The mouth guard system may also remotely communicate the status of risk and the potential injury. The mouth guard uses a local memory device to store impact thresholds based on personal biometric information obtained from the user and compares the sensed forces relative to those threshold values. The mouth guard and its electrical components on the printed circuit board are custom manufactured for the user such that the mouth guard provides a comfortable and reliable fit, while ensuring exceptional performance.

Abstract: A catheter insertable into a cavity of a patient for monitoring pressure including a first lumen for drainage from the cavity and an expandable balloon. The balloon has a liquid containing chamber to monitor pressure within the cavity of the patient as pressure on the outer wall of the balloon deforms the balloon and compresses the liquid within the balloon. An exit port provides passage of air from an interior of the balloon to outside the catheter. A membrane has plurality of pores dimensioned to enable passage of air but prevent passage of the liquid therethrough. A pressure sensor communicates with the liquid containing chamber for measuring pressure based on compression of liquid caused by deformation of the expanded balloon.

Abstract: A method for detecting heart beats is disclosed. A plurality of sensors are configured to receive a cardiac signal and another cardiac signal or a signal correlated with a noise source. A processor is configured to detect candidate peaks in a cardiac signal and select a subset of the candidate peaks for temporal correlation with features, such as peaks, in another cardiac signal or noise correlated signal. This relationship is quantified by a correlation measure. The correlation measure, in turn, influences the likelihood that a particular peak or sequence corresponds to a heartbeat. Candidate peaks that were not part of the correlation process may then be added to a sequence or sequences associated with the peaks subject to the correlation analysis. Sequences are scored according to quality and a final sequence is selected as possible heartbeats.

Abstract: Methods, systems, and devices for controlling external devices are described. A method may include receiving physiological data associated with a user from a wearable device, and identifying one or more physiological states, physical activities, or both, associated with the user based on the physiological data. Physiological states may include physiological states associated with waking up, falling asleep, anxiety, relaxation, and the like. The method may further include transmitting an instruction to one or more external devices based on the one or more physiological states, physical activities, or both, where the instruction is configured to selectively modify one or more operational parameters associated with the one or more external devices.

Abstract: Systems and methods for quantifying the duration of S1 and/or S2 heart sounds, in order to identify markers of heart failure and/or lung failure, are provided. Cardiac cycles containing S1 and S2 sound can be identified in a phonocardiogram and normalized. In order to quantify S1 and S2 sound length, the envelope of the absolute value of the signal can be obtained for each cycle. The sound waves of two components can be separated using the identified single sound wave. These features can be correlated to measures of heart failure and/or lung failure.

Abstract: A method for processing measurements, acquired by a measurement sensor at different measurement times, involves the measurement sensor being integrated into a connected device that is worn/borne by a user and configured to connect to a wireless communication network. The measurement sensor is configured to acquire, at each measurement time, a measurement representative of a movements of, or a physiological characteristic of, the user. The measurement sensor is parameterized by various parameters, the value of each parameter being encoded in a register. Measurements are acquired by the measurement sensor at various measurement times to form a sequence of measurements. Data, established from the sequence of measurements, is transmitted to an interpreting application programmed to estimate, from the transmitted data, a user state selected from a plurality of predetermined states. The method also includes, before or during the measurements acquisition, a verification of the parameters of the measurement sensor.

Abstract: The present disclosure relates to an apparatus for predicting a hemodynamics parameter being conventionally obtained from an implanted sensor or catheter (invasive sensor), e.g., pulmonary artery pressure, based on noninvasive biosignals, such as electrocardiographic (ECG), impedance cardio graphic (ICG), phonocardiogram (PCG), pulse oximetry plethysmograph (PPG). The present disclosure also relates to a method of feeding multiple noninvasive biosignals and/or general inputs into an AI model or AI models to predict a hemodynamics parameter, such as pulmonary artery pressure, which is conventionally obtained from an implanted sensor or catheter.

Abstract: Wearable detection system for detecting vulnerability or risk for infection and/or inflammation and by using this prediction of infection and/or inflammation to realise an early and accurate detection of infection and/or inflammation of a homeothermic living organism. The system measures and monitors heart rate and physical activity and generates an alert of vulnerability or an alert of infection and/or inflammation. The detection is based on decomposition of the heart rate in physical, mental and circadian basal heart rate components, calculation of resilience based on evaluating energy expenditure versus recovery and evaluation of change of the circadian basal heart rate component.

Abstract: A patient information system is described. A virtual representation of a patient is generated using a captured image of the patient. A graphical user interface is displayed on the display, the graphical user interface including a first screen portion configured to display the virtual representation of the patient and a second screen portion configured to display information. A selection of an area of interest is received on the virtual representation of the patient. Clinical and diagnostic information associated with the selected area of interest is received and displayed in the second screen portion of the graphical user interface. The graphical user interface also includes a timeline that displays events of interest. A selection of an event of interest causes the second screen portion of the graphical user interface to display clinical and diagnostic information associated with the selected event of interest.

Abstract: Systems and methods for providing sensitive and specific alarms indicative of glycemic condition are provided herein. In an embodiment, a method of processing sensor data by a continuous analyte sensor includes: evaluating sensor data using a first function to determine whether a real time glucose value meets a first threshold; evaluating sensor data using a second function to determine whether a predicted glucose value meets a second threshold; activating a hypoglycemic indicator if either the first threshold is met or if the second threshold is predicted to be met; and providing an output based on the activated hypoglycemic indicator.

Abstract: A medical monitoring system for use in residential facilities, nursing homes, or home environments is disclosed. The system utilizes a variety of modules and wearable medical devices that convey vital patient information to a series of smart hubs which are connected to the cloud. In the event a change in medical status of a patient occurs, the health care workers receive an Alert notifying them of which specific patient needs attention. The system is monitored using a specialized dashboard.

Abstract: A method includes providing a proton computed tomography (CT) scanner, and measuring sigma with a scintillator screen at an exit beam for each pencil beam scanned across an object for each gantry angle necessary to determine a total energy loss as the beam traverses an object of unknown thickness or material.

Abstract: A method and system for determining a PET image of the scan volume based on one or more PET sub-images is provided. The method may include determining a scan volume of a subject supported by a scan table; dividing the scan volume into one or more scan regions; for each scan region of the one or more scan regions, determining whether there is a physiological motion in the scan region; generating, based on a result of the determination, a PET sub-image of the scan region based on first PET data of the scan region acquired in a first mode or based, at least in part, on second PET data of the scan region acquired in a second mode; and generating a PET image of the scan volume based on one or more PET sub-images.

Abstract: The present invention relates to a computer-implemented method of determining a rotational position of an object in a coordinate system of an x-ray imaging device. An x-ray image is generated of an object to which a Moiré marker for x-ray imaging is attached. Subsequently, the Moiré pattern generated by the Moiré marker is analysed and the rotational position of the marker and hence of the object is determined in a calculative manner. The Moiré marker for x-ray imaging includes a pattern which results in a significantly different appearance when being observed from slightly different perspectives. One embodiment example of the Moiré marker for x-ray imaging consists of two layers with patterns produced by a material that shields x-ray as good as possible like for example lead, surrounded and spaced apart by material that is highly transparent in x-ray like for example air or light plastics.

Abstract: A radiation protection apparatus of a medical X-ray imaging system for absorbing scattered X-rays emerging from an examination region, wherein the radiation protection apparatus comprises: a plurality of lead glass elements, wherein each of the plurality of lead glass elements is configured to move between a rest position and a shield position, and also relative to one another. In the shield position, the plurality of lead glass elements form a radiation shield arranged between the examination region and a region occupiable by medical staff.

Abstract: A target position determination of a single-slot collimating plate and a collimator assembly are disclosed. A first measurement signal is acquired based upon of the first instance of air scanning, when the single-slot collimating plate moves a predetermined distance from a starting position to a first position in a first direction of the Z axis. A second measurement signal is acquired based upon the second instance of air scanning, when the single-slot collimating plate moves a predetermined distance from the starting position to a second position in the direction opposite to the first direction. A composite measurement signal and a composite air calibration signal are determined based upon the first measurement signal and the second measurement signal. The composite measurement signal is calibrated using the composite air calibration signal. The target position of the single-slot collimating plate is determined based upon the calibrated composite measurement signal.

Abstract: Provided is a system for detecting an internal load by using an X-ray image of a container. The system includes an X-ray imaging unit and configured to image a target with X-rays, a database that stores an X-ray reference image obtained by imaging a target having an empty interior according to X-ray imaging information including an X-ray imaging condition, a condition detection unit that acquires X-ray imaging information when the target is imaged, a comparison image selection unit that selects an X-ray reference image from the database, a matching unit that matches a difference between the X-ray image of the target and the selected X-ray reference image, and an internal load detection unit that obtains a difference image from the X-ray image and the X-ray reference image, and detects an internal loading image having no background of the X-ray image of the target through the obtained difference image.

Abstract: The present disclosure provides medical devices and methods thereof. The medical device may include a housing, a positron emission tomography (PET) detector module, and a radio frequency (RF) coil. The housing may form a scanning tunnel for accommodating a subject. The PET detector module may be arranged along a circumference of the scanning tunnel. The RF coil may be arranged along the circumference of the scanning tunnel. The RF coil may include a first RF coil and a second RF coil. The first RF coil and the second RF coil may be disposed coaxially around an axial direction of the scanning tunnel. A projection of the second RF coil along a radial direction of the scanning tunnel may cover at least a portion of a gap of the first RF coil.

Abstract: An X-ray imaging apparatus reduces waiting time and smoothly performs position alignment with a target region. The X-ray imaging apparatus has a C-arm that supports an X-ray tube and an X-ray detector; a turning mechanism that turns the C-arm around the vertical axis AX2; a table on which a subject M is loaded; a console; and a control element, wherein the control element runs the turning mechanism to turn the C-arm in the direction toward the preset target angle when the console provides the input power to perform the relative move of the table relative to the C-arm.

Abstract: A modular x-ray imaging system includes an application specific module, a base unit in communication with the application specific module, and a mechanical support configured to support the x-ray application specific module. The base unit and application specific module are configured to communicate by wired and/or wireless communication.

Abstract: Disclosed is a portable three-dimensional DR system. The portable three-dimensional DR system includes a support mechanism, an X-ray generator, a stand and a flat panel detector. The support mechanism includes a support tube, a transmission component, a drive component and a support pole slidingly provided in the support tube. The X-ray generator is detachably provided on the support pole, the transmission component is used for driving the X-ray generator to move in the direction of closing to or far from the support tube, the drive component is used for driving the X-ray generator to rotate, the flat panel detector is provided on the stand, and the stand is placed on a horizontal plane.

Abstract: A gantry cooling system of a diagnostic medical imaging apparatus transfers apparatus-generated heat, such as gantry heat, to a solid material heatsink, via a circulating-fluid coolant conduit. In some embodiments, the heatsink is incorporated in the ground or within the building structure housing the apparatus.

Abstract: One or more example embodiments of the present invention relates to a method for providing vessel wall-related data. The method includes receiving spectral computed tomography data of an examination region, the examination region having a vessel; calculating a representation of a vessel wall of the vessel and at least one parameter map of the examination region based on the spectral computed tomography data; calculating the vessel wall-related data based on the representation of the vessel wall and the at least one parameter map of the examination region; and providing the vessel wall-related data.

Abstract: A tissue mapping system includes: an imaging stylet, a stylet-deploying mechanism, and a system console with data-processing capability. This tissue mapping system calculates, in-real time, a position of the stylet during tissue imaging and sensing. This position is then used to combine and re-map image and sensor data acquired by the stylet from different regions of the mapped tissue. The stylet is configured to acquire image data within its vicinity when inserted in a tissue, and also has a sensing region along a flexible distal portion of its length. The stylet-deploying mechanism inserts the stylet in different regions of the mapped tissue iteratively. The stylet-deploying mechanism also incorporates features for registering the position of the stylet by using strain sensing or image data. The system console communicates with the stylet to calculate the position of the stylet by using intra-operative tissue image data and distributed strain data within the sensing region of the stylet.

Abstract: The invention relates to an auscultation device (1) for capturing and evaluating body sounds, having an auscultation element (2) having a housing (4, 4a) and arranged therein: an audio system (5), a power supply (6), a computing unit (7), means for data transmission (7a) and a control interface (8), and having a data processing system having a user interface (10), means for data transmission (14a), a memory (13) and a computing unit (14), wherein the audio system (5) comprises at least one microphone unit (5a, 5b) for capturing the body's own sounds and this at least one microphone unit (5a, 5b) comprises a microphone (i) and a connection element (ii) between microphone (i) and housing (4, 4a).

Abstract: The present disclosure provides an ultrafast Doppler ultrasound method for estimating a blood flow velocity through repetitive compounding of multi-angle plane waves. The method includes: controlling an ultrasonic transducer to cyclically transmit plane waves (101) according to a sequence of deflection angles of {0, ??, ?, ??}; receiving echo signals (102) of the plane waves reflected by an area to be scanned; searching for three consecutive frames of signals with deflection angles in a sequence of {0, ??, ?} and {?, ??, 0} in the echo signals to obtain multiple frame groups (103); compounding the three consecutive frames of signals of each frame group to obtain a compounded radio frequency (RF) signal (105); calculating a blood flow velocity (106) according to the compounded RF signal; and performing color coding on the blood flow velocity to generate a two-dimensional (2D) blood flow velocity image (107).

Abstract: A method and system for deriving one or more hemodynamic parameters based on blood-velocity and arterial diameter measures, or parameters proportional thereto, each sampled recurrently or continuously over a time period to obtain for each a data series spanning a time window (i.e. a waveform). This is used, preferably in combination with at least one further physiological parameter, for example heart rate, to derive one or more hemodynamic parameters. A transfer function or machine learning model is used to process the inputs to obtain the estimated hemodynamic parameters.