Abstract: A tool for facilitating medical diagnosis is disclosed herein, including an ultrasound device configured to collect ultrasound data from a patient, a display device, and a processing circuit configured to generate a cerebral blood flow velocity (CBFV) waveform based on the ultrasound data, determine morphology indicators identifying attributes of the CBFV waveform, and configure the display device to display the CBFV waveform and the morphology indicators.

Abstract: An ultrasound imaging system produces images with enhanced resolution or contrast by extrapolation of two ultrasound images of different imaging characteristics, such as aperture size, imaging frequency, or degree of image compounding. In order to prevent the display of image artifacts, extrapolation is accompanied by artifact removal and image smoothing.

Abstract: Systems, devices, and methods for automated, fast lung pulse detection are provided. In an embodiment, a system for detecting pneumothorax (PTX) includes an ultrasound probe in communication with a processor. The processor is configured to generate, using the ultrasound imaging data received from the ultrasound probe, an M-mode image including a pleural line of the lung. Using the M-mode image, the processor generates a difference image comprising a plurality of difference lines generated by subtracting adjacent samples of the M-mode image. The processor analyzes the difference image to determine whether the difference image includes a periodic signal corresponding to the heartbeat of the patient and outputs a graphical representation of detecting the lung pulse based on determining that the difference image includes the periodic signal corresponding to the heartbeat.

Abstract: An ultrasonic blood flow imaging display method and an ultrasonic imaging system. The system comprises: a probe (1); a transmitting circuit (2), configured to excite the probe (1) to transmit an ultrasonic beam to a scanning target; a receiving circuit (4) and a beam forming module (5), configured to receive an echo of the ultrasonic beam to obtain an ultrasonic echo signal; a data processing module (9), configured to obtain, according to the ultrasonic echo signal, blood flow velocity vector information and Doppler blood flow velocity information about a target point in the scanning target and at least part of ultrasonic images of the scanning target, and superposing the ultrasonic images and the Doppler blood flow velocity information to form a Doppler color blood flow graph; and a display (8), configured to contrastively display the blood flow velocity vector information and the Doppler color blood flow graph.

Abstract: The exemplified methods and systems provide a phase space volumetric object in which the dynamics of a complex, quasi-periodic system, such as the electrical conduction patterns of the heart, or other biophysical-acquired signals of other organs, are represented as an image of a three dimensional volume having both a volumetric structure (e.g., a three dimensional structure) and a color map to which features can be extracted that are indicative the presence and/or absence of pathologies, e.g., ischemia relating to significant coronary arterial disease (CAD). In some embodiments, the phase space volumetric object can be assessed to extract topographic and geometric parameters that are used in models that determine indications of presence or non-presence of significant coronary artery disease.

Abstract: Intravascular imaging catheters are provided that include a distal sheath portion having a lumen that is configured to optionally receive a guidewire or an imaging assembly. The distal sheath portion may be configured to have dimensions such that when a guidewire is inserted through the lumen and extends through a distal exit port, the distal sheath portion may be employed as a microcatheter. External tissue may be imaged at a location at or near the distal end of the catheter, enabling, for example, the controlled imaging of a total occlusion, and the positioning of the distal end (and guidewire) within a true lumen associated with a total occlusion. A structural stop may be provided at or near the distal end of the distal sheath portion to prohibit extension of the imaging assembly out of the distal exit port, while permitting the extension of the guidewire through the distal exit port.

Abstract: An ultrasound diagnostic apparatus including a hardware processor that: calculates a plurality of eigenvectors by performing principal component analysis on a time-series reflection wave data group; calculates a principal frequency component of a time direction represented by the plurality of eigenvectors; determines a reduction rate of each of the plurality of eigenvectors on a basis of the principal frequency component of each of the plurality of eigenvectors and a clutter component reduction condition that defines a reference frequency for reduction of a clutter component; calculates a filter coefficient for reduction of the clutter component on a basis of the plurality of eigenvectors, and the reduction rate corresponding to each of the plurality of eigenvectors; and generates blood flow image data by applying the filter coefficient to the time-series reflection wave data group.

Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes processing circuitry. The processing circuitry forms a first transmission beam in a plurality of directions belonging to a first group, forms at least one first reception beam, forms a second transmission beam in a plurality of directions belonging to a second group, after an elapse of a time from performing a scan for the first group, forms at least one second reception beam, applies a wall filter to reception signals obtained by the first and the second reception beams, calculates bloodstream information based on the filtered reception signals, and generates image data based on the calculated bloodstream information.

Abstract: Systems and methods are provided for Doppler processing for frequency-modulated continuous wave (FMCW) radar systems. Range-gate data representing the position of an object within a region of interest is generated at a radar sensor. A first Doppler Fast Fourier Transform (Doppler-FFT) is performed on the range-gate data to provide a first set of Doppler-FFT data. A velocity associated with a signal amplitude that exceeds a noise floor is identified in the first set of Doppler-FFT data. A correction value for the range-gate data is determined from the identified velocity. The range-gate data is modified using the determined correction value to provide modified range-gate data. A second Doppler-FFT is performed on the modified range-gate data to provide a second set of Doppler-FFT data.

Abstract: An ultrasonic blood flow parameter displaying method, comprises: acquiring, by means of a probe, an ultrasonic signal from an object to be scanned; acquiring, according to the ultrasonic signal, a plurality of velocities and directions of blood flow within the object to be scanned; extracting the plurality of velocities and directions of blood flow; quantifying the dispersion of the plurality of velocities and directions of the blood flow extracted; and displaying the quantization result of the dispersion. The present invention provides a method for quantifying and evaluating the direction of the motion of blood flow, and provides a better perspective of observation for a user.

Abstract: Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Abstract: Ultrasound imaging methods and ultrasound imaging devices are provided, in which an inter-frame processing may be performed on elasticity echo data or the elasticity images to obtain new elasticity images, thereby improving the display frame rate of the elasticity images. The elasticity echo data comprises an ultrasound echo of an ultrasound wave returned from an object, and the elasticity images comprises at least two frames and obtained according to the elasticity echo data.

Abstract: A medical system according to embodiments of the present invention includes at least one sensor configured to monitor physiological status of a patient and to generate sensor data based on the physiological status, a user interface device, a processor communicably coupled to the user interface device, the processor configured to: present via the user interface device an array of two or more possible input elements, the input elements each comprising a class of patients or a diagnosis and treatment pathway, receive a selected input element based on a user selection among the two or more possible input elements, acquire the sensor data and process the sensor data to generate physiological data, and present via the user interface screen the physiological data according to a template that is customized for the selected input element.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to sequentially obtain eigenvalues of a correlation matrix of a scan range, the correlation matrix being obtained from a data sequence of reflected-wave data in mutually the same position acquired by performing an ultrasound scan on the scan range formed with a plurality of scanning lines. The processing circuitry is configured to determine a filter coefficient to be applied to a Moving Target Indicator (MTI) filter, on a basis of the plurality of eigenvalues obtained at mutually-different points in time.

Abstract: A two-dimensional array ultrasound probe, which is enabled for ultrasonic reception operation of a continuous wave Doppler mode (C mode) and an imaging mode (B mode). The probe includes a reception circuit provided for each transducer and a first multiplexer; a plurality of first wires connected to the first multiplexer; a second wire connected to a plurality of first wires outside the array; switches that are provided to the second wire and that can be turned off to adapt to phasing addition units; a plurality of second multiplexers connected to the second wire and a plurality of first output ports for the first mode; and a plurality of second output ports that are connected to each region between the switches on the second wire and that are used in the second mode.

Abstract: The invention is a device, system, and method for providing an initial assessment of potential heart valve disease and recommending and/or providing follow-up assessments for heart valve disease. The invention includes a simple ECHO device which uses ultrasonic signals to detect and determine maximum blood flow velocities, and compares the maximum blood flow velocities to set thresholds to determine if it is appropriate for the patient to be subjected to additional and more detailed assessments for heart valve disease.

Abstract: Ultrasound beamformer-based channel data compression allows for software-based image formation. To increase the amount of data transferred, ultrasound beamformer-based channel data compression is provided. A beamformer is used to compress instead of or in addition to traditional beamformation. The compression reduces the data bandwidth while allowing reconstruction of the original channel data.

Abstract: A system and method for deriving information on disease in vascular segments for example mean pressure, drop in mean pressure and/or hydraulic resistance, from such measured waveforms is described. The waveforms can, for example, be measured non-invasively using Doppler ultrasound or magnetic resonance techniques. Form Factors (Vff, Pff) for the velocity waveform and the central arterial pressure are determined. Lesions may be detected and located using the estimated non-invasive hemodynamic information.

Abstract: A first region of interest and a second region of interest are set respectively including a first end and a second end of a blood vessel of interest running in an umbilical cord. A template representing a fluctuation of a pulse at the first end is produced from a change of brightness information in the first region of interest. A graph representing a fluctuation of a pulse at the second end is produced from a change of brightness information in the second region of interest. A propagation time of blood is calculated by identifying a portion, in the graph, which matches the template. A length of the umbilical cord is estimated based on the propagation time.

Abstract: A system for determining peripheral artery disease and method of use for determining the presence or absence of peripheral vascular disease and the severity of the disease in particular vascular segments. The System for determining peripheral artery disease and method of use includes a continuous wave Doppler transceiver which generates a digitized version of quadrature detected stereo audio and is coupleable to a waveform converter and processor. The waveform converter and processor provides filtering, time domain to frequency domain conversion, gain control, and statistical processing of the converted Doppler Stereo audio and is operationally coupled to a display for presenting results to a technician.

Abstract: A method that includes transmitting coded waveforms simultaneously on multiple elements for several frames, constructing a first multi-input, single output (MISO) system from the codes to model transmit-receive paths, solving system and RF data observation by linear model theory, giving an IR set for the medium, and applying the estimates to a secondary MISO system, constructed by analogy to the first, but with pulses convenient for beamforming in the form of a focused set of single-cycle pulses for ideal focused reconstruction.

Abstract: An ultrasound diagnostic apparatus includes: a transmitter; a receiver; a Doppler processor that detects a Doppler shift frequency resulting from a blood flow in a subject, based on a reception signal corresponding to a reflected wave from a sample gate position in the subject; and a velocity scale adjuster that adjusts a velocity scale determining a pulse repetition frequency, based on a Doppler waveform corresponding to the Doppler shift frequency during an observation target period. In a case where a recommendation value of the velocity scale calculated based on the Doppler waveform is larger than a critical value of the velocity scale at which a measurement state calculated based on the sample gate position transitions from a non-high-pulse-repetition-frequency state to a high-pulse-repetition-frequency state, the velocity scale adjuster sets the critical value as the velocity scale to be used in measurement.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to speculate saturation of reflected-wave signals observed before a phased addition process performed by using the reflected-wave signals, in accordance with an intensity of reflected-wave data generated through the phased addition process, the reflected-wave signals being generated by transmitting an ultrasound wave with respect to mutually the same scanning line, and the processing circuitry is configured to output a result of the speculation. The processing circuitry is configured to cause a display to display data based on the result of the speculation.

Abstract: A blood-vessel recognizing method for recognizing blood vessels present in biological tissue, the method including: obtaining real-time Doppler spectra on the basis of time waveforms data of intensities of scattered light generated in the biological tissue due to irradiation with laser light; calculating average frequencies of the real-time Doppler spectra; correcting the calculated average frequencies on the basis of peak intensities of the real-time Doppler spectra; and determining whether or not blood vessels are present in regions of the biological tissue irradiated with the laser light on the basis of the corrected average frequencies.

Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.

Abstract: Methods and systems are provided for color flow ultrasound imaging. In one embodiment, a method comprises acquiring color flow data, detecting, with a neural network, a flash artifact in the color flow data, adjusting an adaptive filter cutoff of a clutter filter based on a classification result of the neural network, filtering, with the clutter filter, the flash artifact from the color flow data, and displaying a color flow image generated from the filtered color flow data. In this way, strong flash artifacts caused by strong tissue movement or probe movement may be dynamically suppressed during color flow ultrasound imaging.

Abstract: A method of processing cardiac ultrasound data for determining information about a mechanical wave in the heart. The method comprises receiving data representative of a time series of three-dimensional data frames, generated from ultrasound signals from a human or animal heart, each frame comprising a set of voxels, each voxel value representing an acceleration component of a respective location in the heart at a common time. The method also comprises identifying, for each voxel, a frame of the series in which the voxel value is at a maximum. A three-dimensional time-propagation data set is generated by assigning each voxel a value representative of the time of the respective frame in the time series for which the corresponding voxel is at a maximum. The method then comprises generating data representative of a three-dimensional velocity vector field by calculating time derivatives from the three-dimensional time-propagation data set.

Abstract: A medical imaging device connector assembly for connecting a medical imaging device to a terminal of a medical imaging system is provided. The medical imaging device connector assembly includes a top housing having a first base cutout; a bottom housing configured to couple to the top housing, the bottom housing including a second base cutout; a base housing positioned within the first and second base cutouts; a plurality of printed circuit boards (PCBs) disposed between the top housing and the bottom housing; an electrical connector positioned within the base housing; and an elastic seal member surrounding a circumference of the base housing. When the top housing is coupled to the bottom housing, the elastic seal member is compressed by the plurality of PCBs in a first direction and by the top and bottom housings in a second direction perpendicular to the first direction to prevent fluid ingress.

Abstract: A method includes receiving ultrasound echo signals produced in response to a pulsed ultrasound field interacting with anatomical tissue and flow of structure therein. The method further includes generating electrical signals indicative thereof. The method further includes beamforming the electrical signals producing beamformed data. The method further includes constructing a real-time image of the anatomical tissue with the beamformed data. The method further includes constructing a de-aliased color images of the flow with the beamformed data. The method further includes visually presenting the real-time image of the anatomical tissue with the de-aliased color images of the flow superimposed thereover.

Abstract: An ultrasound apparatus of a body cavity insertable type includes: a handpiece; a supporting rod which is elongated from the handpiece; an ultrasound probe which is connected to the supporting rod and is configured to be able to be inserted in the body cavity; and a sealing cover which is separably coupled to the ultrasound probe to at least partially surround the ultrasound probe in a longitudinal direction from a distal end thereof. The ultrasound probe includes: a piezoelectric element; and a housing to which the piezoelectric element is mounted. An end of the housing is connected to the supporting, and the housing is provided with an ultrasound passing hole which is disposed outside the supporting rod. The sealing cover has an ultrasound passing window which is formed at a position corresponding to the ultrasound passing hole.

Abstract: Described herein are technologies for facilitating reconstruction of flow data. In accordance with one aspect, the framework receives a four-dimensional projection image dataset and registers one or more pairs of temporally adjacent projection images in the image dataset. Two-dimensional flow maps may be determined based on the registered pairs. The framework may then sort the two-dimensional flow maps according to heart phases, and reconstruct a three-dimensional flow map based on the sorted two-dimensional flow maps.

Abstract: Disclosed herein is a sensor processing system including an acquisition unit, a time series analysis unit, and a decision unit. The acquisition unit acquires measurement data from a measuring unit. The measuring unit measures a physical quantity, of which a value varies depending on whether a human is present in, or absent from, an object space. The time series analysis unit obtains an analysis model for a time series analysis in which the measurement data acquired at a predetermined timing is represented by multiple items, acquired before the predetermined timing, of the measurement data. The decision unit decides, depending on a decision condition including a condition concerning a coefficient of the analysis model, whether the human is present or absent at the predetermined timing.

Abstract: Provided are a medical imaging apparatus and a method of generating a medical image that are capable of generating a Doppler image by using a Doppler effect as well as an ultrasound image. The method of generating a medical image includes: acquiring received signals; acquiring an ultrasound image and displaying the acquired ultrasound image; acquiring a Doppler signal corresponding to a sample volume set on the ultrasound image; generating a Doppler image based on the Doppler signal and displaying the generated Doppler image; calculating at least one selected from an average magnitude, a maximum value, and a minimum value of the Doppler signal; and changing image displaying mode by suspending the displaying of the Doppler image and updating the ultrasound image, in response to the at least one selected from the average magnitude, the maximum value, and the minimum value is less than or equal to a threshold value thereof.

Abstract: Systems and methods for cavitation-guided opening of a targeted region of tissue within a primate skull are provided. In one example, a method includes delivering one or more microbubbles to proximate the targeted region, applying an ultrasound beam, using a transducer, through the skull of the primate to the targeted region to open the tissue, transcranially acquiring acoustic emissions produced from an interaction between the one or more microbubbles and the tissue, and determining a cavitation spectrum from the acquired acoustic emissions.

Abstract: A system for monitoring blood flow in a patient comprises a first unit having an ultrasound transducer and a fastener for fastening the unit to the patient. A controller subsystem comprises the first unit and a separate second unit. The controller subsystem is configured to: control the ultrasound transducer to transmit plane-wave pulses into the patient in a propagation direction; sample reflections of the plane-wave pulses, received at the ultrasound transducer, from a region within the patient, to generate pulse-Doppler response signals; and process the pulse-Doppler response signals to estimate a series of values, over time, of a measure proportional, but not equal, to the total blood volume flow passing through the region. A monitoring subsystem is configured to monitor the series of values over time and to generate a signal if a set of one or more of the values satisfies a predetermined criterion.

Abstract: An ultrasound system and method for generating an elastic image are disclosed. The ultrasound system includes an ultrasound probe and a processor. The ultrasound probe is configured to transmit ultrasound signals into a target object and receive ultrasound echo signals from the target object while the ultrasound probe applies a variable compression force on the target object.

Abstract: A system and method for tracking an anatomical structure over time based on Pulsed-Wave (PW) Doppler signals of a Multi-Gated Doppler (MGD) signal is provided. The method may include identifying a gate corresponding with a selected anatomical structure. The method may include analyzing an MGD signal to track the selected anatomical structure over an extended period of time by selecting, at a plurality of sample times during the extended period of time, a PW Doppler signal from a plurality of PW Doppler signals of the MGD signal. Each of the selected PW Doppler corresponds with the selected anatomical structure at the particular sample time. The method may include presenting a continuous PW Doppler signal generated from each of the PW Doppler signals selected at each of the sample times during the extended period of time at a display system.

Abstract: A positive pressure therapy device for congestive heart failure includes: a pressure raising unit configured to raise a pressure of an air or a gas mixture of the air and other gases to a positive pressure; an introducing unit configured to introduce the air or the gas mixture that is set to a positive pressure into the airway of a patient; and a blood oxygen level measuring unit configured to measure a value of a blood oxygen level of the patient. A control unit monit is configured to control the pressure raising unit based on the value of the blood oxygen level that is measured by the blood oxygen level measuring unit.

Abstract: Systems, apparatuses, methods, and non-transitory computer-readable media for mapping a section of a vasculature of a subject are described herein, including moving a probe to a first position adjacent the section of the vasculature; transmitting, by the probe, a first ultra-sound beam into a first portion of the section of the vasculature through the body of the subject; receiving first ultra-sound data including at least one imaging parameter; moving the probe to a second position at the body of the subject adjacent the section of the vasculature and different from the first position; transmitting, by the probe, a second ultrasound beam into a second portion of the section of the vasculature through the body of the subject; receiving second ultrasound data including the at least one imaging parameter; and constructing a map of the section of the vasculature based on the first ultrasound data and the second ultrasound data.

Abstract: An ultrasound diagnostic apparatus includes: an ultrasound probe; a transmission and reception unit that transmits an ultrasound beam from the ultrasound probe toward a subject, receives an ultrasound beam reflected from the subject, and processes a received signal output from the ultrasound probe to generate received data; a complex data generation unit that generates first complex data including amplitude information and phase information by orthogonally detecting the received data generated by the transmission and reception unit using a first center frequency and a first cutoff frequency and generates second complex data by orthogonally detecting the same data as the received data using a second cutoff frequency and a second center frequency lower than the first center frequency; a B-mode processing unit that generates a B-mode image using amplitude information of at least one of the first complex data or the second complex data; a phase difference calculation unit that calculates a first phase difference

Abstract: A method for determining a flow acceleration directly from beamformed ultrasound data includes extracting a sub-set of data from the beamformed ultrasound data, wherein the sub-set of data corresponds to predetermined times and predetermined positions of interest, determining the flow acceleration directly from the extracted sub-set of data, and generating a signal indicative of the determined flow acceleration. An apparatus includes a beamformer (112) configured to processes electrical signals indicative of received echoes produced in response to an interaction of a transmitted ultrasound signal with tissue and generate RF data, and an acceleration flow processor (114) configured to directly process the RF data and generate a flow acceleration therefrom.

Abstract: An ultrasonic diagnostic apparatus including an elastic image data generating unit which generates elastic image data having color information corresponding to strain calculated by a physical quantity data generating unit, and a displayer which causes an elastic image having a color corresponding to the strain to be displayed on an ultrasound image of the biological tissue, based on the elastic image data. The elastic image data generating unit generates the elastic image data, based on a color conversion table which is indicative of information of association of strain and the color information with each other and in which the color information changes depending on strain in a predetermined range of strain set in advance. The displayer displays an elasticity index image indicating an elasticity index indicative of a relative relationship of an average value of strain in a region set to the ultrasound image and the predetermined range of strain.

Abstract: Systems and methods are disclosed for performing imaging with a crossed-electrode ultrasound transducer array, where ultrasound transducer array is configured for focusing in one direction via conventional time-delay phased array beamforming, and for focusing in a second direction via a Fresnel aperture formed via the application of bias voltages. The ultrasound transducer array connections are switched between transmit and receive operations, such that the Fresnel aperture is generated in the first direction upon transmit, and in the second direction upon receive. One or both of the transmit Fresnel aperture and the receive Fresnel aperture are configured as a set of delay-corrected Fresnel sub-apertures, where the delay associated with each Fresnel sub-aperture is selected to compensate for variations in path lengths between the Fresnel sub-apertures and the focal point.

Abstract: A device is provided for automatically assessing functional hemodynamic properties of a patient is provided, the device comprising: a housing; an ultrasound unit coupled to the housing and adapted for adducing ultrasonic waves into the patient at a vessel; a detector adapted to sense signals obtained as a result of adducing ultrasonic waves into the patient at the vessel and to record the; and a processor adapted for receiving the recorded signals as data and transforming the data for output at an interface. Other devices, systems, methods, and/or computer-readable media may be provided in relation to assessing functional hemodynamics of a patient.

Abstract: An apparatus includes a body and a dilation catheter operatively coupled with the body and configured to translate between proximal and distal positions. The dilation catheter includes a dilation member configured to dilate an anatomical passageway when the dilation catheter is in the distal position. A guide catheter is coupled to the body and defines a longitudinal axis. The guide catheter is selectively positionable in a plurality of rotational orientations about the longitudinal axis relative to the body, and is configured to guide the dilation catheter therethrough between the proximal and distal positions. The apparatus further includes at least one illuminating indicator feature configured to emit light to facilitate positioning of the guide catheter in one or more of the rotational orientations.

Abstract: Methods of ultrasound imaging, some of which comprise: generating one or more transmit beams, wherein the boresight of each of the transmit beams points to a direction associated with a target region generating one or more receive beams using a probe (26) comprising a transducer array (30); for each receive beam or group of receive beams, sampling the received signal one or more times, wherein each sample is associated with a certain volume within the target region (“volume-gate”), and wherein multiple space-dependent samples are taken over the probe for each volume-gate; and processing the space-dependent samples, said processing comprising: applying beamforming sample alignment such that each space-dependent sample associated with a volume-gate is aligned; for each aligned volume-gate, computing one or more clutter suppression features, wherein a clutter suppression feature is dependent on the signal variability of the space-dependent samples; for each aligned volume-gate, computing a metric value wherein t

Abstract: An improvement to sensor detection performance is described through use of novel least squares based (or other) sensor measurements fitting, which can significantly improve or increase the sensor Probability of Detection (Pd) while simultaneously improving or decreasing the sensor Probability of False Alarm (Pfa). Instead of just thresholding a scalar magnitude as is done in prior art signal detection methods, the new method seeks to classify time (or space, or spatio-temporal) sequenced Signal measurements from time (or space, or spatio-temporal) sequenced Noise measurements through unique features characteristic of each. The proposed method ma be implemented on most modern Radar Signal Data Processors (SDP) and therefore affords a near term, low cost opportunity to both significantly increase detection and tracking performance and/or enable ready adoption of new additional auxiliary missions currently not possible with resource constrained sensors.

Abstract: An apparatus includes a memory device with computer readable instructions and a processor configured to execute the computer readable instructions encoded on the memory device. The processor, in response to executing the computer readable instructions, obtains an ensemble of ultrasound images with diversity in an ensemble dimension, extracts a sub-set of data from each of the images, constructs a data matrix with the extracted data, wherein the data matrix has a dimension of space versus the ensemble dimension, identifies a largest eigenvalue(s) and a corresponding eigenvector(s) in the data matrix, computes a coherent signal projection matrix with the identified corresponding eigenvector(s), filters the data matrix with the coherent signal projection, and generates an ultrasound image with the filtered data matrix.

Abstract: Provided herein are compositions and methods for managing and minimizing chronic pain. In particular, provided herein are systems and methods for managing and minimizing chronic pain with light therapy.

Abstract: In spectral pulsed wave Doppler imaging, spatial variance in signal and/or noise are reduced by combination of multiple spectra with at least partially decorrelated noise. Rather than requiring oversampling in time, the multiple spectra for one Doppler gate are created from different spatial signals. The Doppler gate is divided into sub-gates, the beamformed sample locations in the Doppler gate are grouped into two or more groups using any selection criterion, and/or different receive apertures are used to simultaneously sample the Doppler gate. Spectra for the gate are estimated from the samples with the different spatial content and then combined.