Abstract: An apparatus and method for sensing body information is provided. The apparatus includes: a light-emitting device configured to emit a light signal toward an object that is to be sensed; a light-receiving device configured to detect a reflected light signal reflected from the object; an image sensor configured to detect the reflected light signal reflected from the object; and a controller configured to selectively drive at least one of the light-receiving device and the image sensor according to a distance between the object and the light-emitting device and to sense volume information or blood flow information of the object by using the reflected light signal.

Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for pre-stent planning, stent planning and post-stent planning using one or more computing devices. In one embodiment, a method generates one or more stent profiles, such as a target stent profile, that are user configurable during a pre-stent planning stage by selecting one or more frames. The method performs a comparative analysis of the previously set target stent profile relative to a vessel lumen region post stent deployment. The method and related user interfaces can alert a user to move, remove, reposition, or inflate a stent. The location of jailed side branches can also be identified and displayed based upon the comparative analysis. Parameters that change based on the outcome of the stent deployment can be displayed in terms of the predicted parameter value and the value that is measured or determined after stent deployment.

Abstract: A system for fluorescence-based imaging of a target includes at least one excitation light source configured to emit a homogeneous field of excitation light and positioned to uniformly illuminate a target surface with the homogeneous field of excitation light during fluorescent imaging, a power source, and a portable housing configured to be held in a user's hand during imaging. The housing contains a lens, a filter, an image sensor, and a processor. The filter is configured to permit optical signals responsive to illumination of the target surface and having a wavelength corresponding to at least one of bacterial autofluorescence and tissue autofluorescence to pass through the filter to the image sensor. The at least one excitation light is adjacent to the housing so as to be positioned between the target surface and the image sensor during fluorescent imaging.

Abstract: An ultrasound signal processing device that generates, for each detection wave, a first complex Doppler signal sequence through quadrature detection of a reception signal sequence; generates tissue velocity data by calculating velocity values for each set of coordinates of observation points in a region of interest from the first complex Doppler signal sequence; generates a second complex Doppler signal sequence by performing clutter removal filter processing on the first complex Doppler signal sequence; generates first velocity data by calculating velocity values for each set of coordinates of the observation points from the second complex Doppler signal sequence; and generates, for each set of coordinates of the observation points, second velocity data based on the first velocity data and the tissue velocity data, and third velocity data by applying a correction to velocity values of the second velocity data that have an absolute value equal to or less than a threshold.

Abstract: A technique relates to an imaging apparatus. Extensions are coupled to a support structure, the extensions being spaced a predefined distance from one another, the extensions having a length that protrudes from the support structure. Light sources are coupled to the extensions such that the light sources are positioned to irradiate a scalp. Sensors are coupled to the extensions, the sensors being positioned at an angle to capture images of the scalp having been irradiated by the light sources.

Abstract: A method and system for using ultrasound for evaluating pressure of a vessel of a user, the method including: providing an ultrasound system configured to be placed at a body region proximal the vessel of the user, generating a correlation between a set of push pulse parameters and a set of push pulse-dependent values associated with the vessel, wherein generating the correlation includes providing a push pulse and determining a push pulse-dependent value based on the push pulse, generating a pressure value from the vessel based on the correlation, and generating a pressure waveform from the pressure value and a set of supplemental pressure values.

Abstract: A system and method are provided for tracking magnetically-labeled substances, such as transplanted cells, in subjects using magnetic resonance imaging (MRI).

Abstract: An ultrasound diagnostic apparatus includes: a collation pattern memory that stores a plurality of collation patterns corresponding to a plurality of examination parts of a subject in advance; an information input unit that is used by a user to input examination type information; a determination order decision unit that decides a determination order of the plurality of examination parts to be continuously examined, on the basis of the examination type information input to the information input unit; and a part determination unit that reads the collation patterns corresponding to the examination parts to be continuously examined from the collation pattern memory according to the determination order decided by the determination order decision unit and sequentially collates the ultrasound image in the determination order using the read collation patterns to determine an imaging part of the subject.

Abstract: A hyperspectral facial analysis system and method for personalized health scoring to assess the risk that a person has a disease. Embodiments capture images in multiple spectral bands, such as visible, infrared, and ultraviolet, and analyze these images to generate multiple health metrics, such as pallor, temperature, sweat, and chromophores. These metrics may be combined into an overall health score that may be used for screening. Image analysis may focus on the area under the eyes, where skin is thinnest. Images may be compared to a reference population to identify anomalous values, so that health scoring automatically adjusts for local conditions. Pallor may be calculated based on hue and saturation of visible light images. Temperature may be calculated based on infrared image intensity. Sweat may be calculated using cross-polarized images to identify specular highlights. Chromophores may be calculated by comparing frequency domain ultraviolet images to those of the reference population.

Abstract: An active marker device (100) is introducible into a human tissue and for tracking a region of interest of a human body. The active marker device includes a light source (101) for emitting light such that the emitted light can be detected by an optical sensor. In this way, the active marker device and/or the region of interest can be tracked by a tracking system including the optical sensor. The active marker device (100) also includes a switch (102) for turning the light source on and off and for operating the light source in a pulsed mode.

Abstract: A pulse measuring device includes: an image acquisition unit that acquires plural pieces of time-series photographed image data obtained by photographing a living body; an image processor that generates plural pieces of transformed image data corresponding to the plural pieces of photographed image data by performing a multiple resolution analysis on each of the plural pieces of photographed image data a plurality of times, each of the plural pieces of photographed image data being decomposed into a high-resolution component and a low-resolution component on the multiple resolution analysis; and a pulse measuring unit that calculates a feature quantity indicating luminance of a predetermined area in each of the plural pieces of transformed image data, calculates a variation period of the feature quantity by analyzing time-series data of the feature quantity, and calculates a pulse of the living body based on the variation period of the feature quantity.

Abstract: A device and a system, based upon Deep Optical Scanning (DEOS), for the detection of certain cancers such as breast cancer and the determination of their response to therapy. DEOS is based upon the nonlinear optical interaction of incident laser generated light with tissue. The cancers may either be subsurface or on the surface. The system includes hardware and software components that form subsystems including: an Optical Electronic Subsystem, a Digitization Subsystem, a Parameter Computation Subsystem, an Archive, an Artificial Intelligence Subsystem, and a Presentation Subsystem. The device can be made portable and is non-invasive in its application to a patient. The system can be integrated into a hybrid architecture with other imaging techniques used for the detection of cancers.

Abstract: The invention provides for a medical instrument (200) comprising a magnetic resonance imaging system (202) and a high-intensity focused ultrasound system (204) with an electronically controllable and a mechanically controllable focus.

Abstract: An ultrasound diagnostic apparatus includes the following. A deflection controller generates delay time information to make phases of reception signals input to channels uniform according to a deflection angle. A channel selector selects a channel in which the reception signal is turned on or off so that the phases of the reception signals input to channels are different and which generates channel selection information. A reception delay interrupter provides the delay amount to the reception signal and which turns on or off the reception signal. An adder adds the plurality of reception signals which are provided with the delay amount and turned on.

Abstract: Rapid quantitative evaluations of heart function are carried out with strain measurements from Magnetic Resonance Imaging (MRI) images using a circuit at least partially onboard or in communication with an MRI Scanner and in communication with the at least one display, the circuit including at least one processor that: obtains a plurality of series of MRI images of long and short axis planes of a heart of a patient, with each series of the MRI images is taken over a different single beat of the heart of the patient during an image session that is five minutes or less of active scan time and with the patient in a bore of the MRI Scanner; measures strain of myocardial heart tissue of the heart of the patient based on the plurality of series of MRI images of the heart of the patient; and generates longitudinal and circumferential heart models with a plurality of adjacent compartments, wherein the compartments are color-coded based on the measured strain.

Abstract: In one embodiment, an ultrasonic diagnostic apparatus includes a probe configured to be equipped with plural transducers arranged in a first direction and a second direction perpendicular to the first direction and be able to perform a two-dimensional scan in the first and second directions; a moving device configured to support the probe and mechanically move the probe in the second direction; a receiving circuit configured to generate first reception signals for respective moving positions of the probe in the second direction by performing receiving phase-compensation and summation processing on respective reflected signals received by the plurality of transducers at each of the moving positions; and processing circuitry configured to generate a second reception signal by performing moving aperture synthesis on the first reception signals generated for the respective moving positions of the probe based on positional information of the probe and generate image data from the second reception signal.

Abstract: The present invention relates to a redundant reciprocal tracking system composed of at least two trackers 10. A first tracker is able to sense partial or full pose data (orientation and position) of a second tracker in a first reference frame and the second tracker is able to sense partial or full pose data of the first tracker in a second reference frame. Pose data of first and second trackers are further transferred to a central processor 30, which is able to compute the transformation between first and second reference frame. Data generated by the trackers are such designed that they define an over-determined mathematical system (e.g. more than 6 degrees of freedom in a 3D setup). The over-determined information can be used to qualify and/or improve the transformation of the reference frame. In an embodiment of the invention, the tracking system is an optical one and the over-determined information defines an error metric used to check the validity of the transformation.

Abstract: A flexible device having a layered structure for delivering electrical stimulation and one or both of light and ultrasound to a skin surface is provided. The device is flexible so as to form a non-planar contact surface against the skin surface, and includes one or both of (a) a flexible light emitter layer positioned between two flexible conductive layers that emits light when driven by a power source and (b) a flexible ultrasound emitter layer positioned between two flexible conductive layers that produces ultrasound when driven by a power source. The device also includes a flexible electrical stimulation layer that functions as an electrode and is configured to provide electrical stimulation when driven by a power source.

Abstract: A method for computing fractional flow reserve (FFR), including receiving geometrical parameters of a blood vessel segment including a proximal end and a distal end, the geometrical parameters including a first geometrical parameter, a second geometrical parameter and a third geometrical parameter; and with the proximal end as a reference point, deriving a reference lumen diameter function and a geometrical parameter difference function based on the geometrical parameters and the distance from the position along the segment of blood vessel to the reference point. Derivatives of the geometrical parameter difference function are calculated in multiple scales. FFR is computed as a ratio of a second blood flow pressure at the first location of the blood vessel to a first blood flow pressure at the proximal end of the segment based on the multiple scales of derivative difference functions and the maximum mean blood flow velocity.

Abstract: A method for a medical procedure is provided and includes obtaining data from sensors disposed in a medical instrument. The sensors include at least one first sensor configured to measure acceleration, at least one second sensor configured to measure rotation, and at least one third sensor configured to measure direction of movement. The method further includes correlating the data from the sensors with time and storing the correlated data and time. A medical system, a method for imaging a medical procedure, and a method of processing sensor measurements are also disclosed.