Abstract: For spectral Doppler imaging, the search range for tracing the spectral envelope is set dynamically. The limit for searching for the envelope is established by spectrum-by-spectrum placement between bands. This search may be aided by plotting the spectra from 0 to 2?. The limit varies over time to better separate bands so that subsequent tracing avoids aliasing.

Abstract: An ultrasound diagnostic apparatus includes an ultrasound probe including a transducer array and a diagnostic apparatus main body including a monitor that are wirelessly connected; and a color flow mode, the ultrasound probe includes a transmission and reception circuit that causes the transducer array to transmit an ultrasonic pulse toward a subject, and performs reception focusing processing on a reception signal output from the transducer array that has received an ultrasound echo from the subject to generate a sound ray signal, a flow image information generation unit that generates flow image information consisting of velocity data and at least one of dispersion data or power data on the basis of the sound ray signal, and a probe-side wireless communication circuit that wirelessly transmits the flow image information, and the diagnostic apparatus main body includes a main body-side wireless communication circuit that receives the flow image information wirelessly transmitted from the probe-side wireless

Abstract: The present application discloses a PPG circuit, a biological characteristics detection device and a biological characteristics detection method. The PPG circuit is configured to control a light source and N photoelectric converters to sense biological characteristics of an object under test; the PPG circuit includes: a transmitting channel, K receiving channels, wherein the N photoelectric converters are divided into K sets of photoelectric converter sets, and the K receiving channels respectively correspond to K sets of photoelectric converter sets; and a controller, configured to control the PPG circuit to operate in a partial sampling phase or an full sampling phase, so as to generates J or K biological characteristics sampling results during each of the pulse repetition cycles.

Abstract: Surgical robot systems, anatomical structure tracker apparatuses, and US transducer apparatuses are disclosed. A surgical robot system includes a robot, a US transducer, and at least one processor. The robot includes a robot base, a robot arm coupled to the robot base, and an end-effector coupled to the robot arm. The end-effector is configured to guide movement of a surgical instrument. The US transducer is coupled to the end-effector and operative to output US imaging data of anatomical structure proximately located to the end-effector. The least one processor is operative to obtain an image volume for the patient and to track pose of the end-effector relative to anatomical structure captured in the image volume based on the US imaging data.

Abstract: Systems, methods, and instruments for tracking localized movement of an anatomic structure at a surgical site are provided that can, for example, detect and identify movement of the anatomic structure not otherwise tracked by a global navigation system. One embodiment can include a cannula with a localized navigation sensor coupled to a distal end thereof. The cannula can be coupled to a robot arm and the localized navigation sensor can detect movement of an anatomic structure relative to the cannula. The localized navigation sensor can include one or more tines that selectively extend from the cannula to contact the anatomic structure. A controller can receive data from the localized navigation sensor and a global navigation system, and determine if movement detected by the localized navigation sensor is tracked by the global navigation system. Systems, methods, and instruments of the present disclosure can be used independently of a global navigation system.

Abstract: A display frame data array is transferred from an ultrasound diagnostic apparatus to a diagnosis assisting server. The display frame data array is analyzed in the diagnosis assisting server, and a diagnosis assisting data array is generated. The diagnosis assisting data array is transferred from the diagnosis assisting server to the ultrasound diagnostic apparatus. A display processing unit combines the display frame data array and the diagnosis assisting data array while synchronizing the data arrays.

Abstract: User feedback on acquisition of ultrasound data may be provided to a user. The feedback may indicate a quality of the acquisition and/or the reliability of the measurements calculated from the ultrasound data, for example, the volume flow measurements calculated from Doppler data. Various quality factors such as a signal-to-noise ratio (SNR), motion, Doppler angle, vessel size, vessel depth, and/or variance in velocity values may be determined to provide an indication of quality of the acquisition. The quality factors may be provided individually or in combination. In some examples, one or more quantitative values of the quality factors may be provided. In some examples, one or more qualitative indications of the quality of the acquisition may be provided.

Abstract: Systems, methods, and apparatuses for confidence mapping of shear wave measurements are disclosed. Confidence maps of shear wave image measurements may be generated from one or more confidence factors. Masking of graphical overlays of tissue stiffness values, based at least in part on the confidence map is disclosed. The confidence map and/or masked graphical overlays of tissue stiffness values may be superimposed on ultrasound images and provided on a display.

Abstract: Methods and systems are provided for generating ultrasound probe motion recommendations. In one example, a method includes obtaining an ultrasound image of a source scan plane, the ultrasound image acquired with an ultrasound probe at a first location relative to a patient, entering the ultrasound image as input to a probe recommendation model trained to output a set of recommendations to move the ultrasound probe from the first location to a plurality of additional locations at which a plurality of target scan planes can be imaged, and displaying the set of recommendations on a display device.

Abstract: A method for fast high-resolution multi-parametric quantitative magnetic resonance imaging comprises: designing a fast high-resolution multiple overlapping-echo imaging pulse sequence; determining sampling parameters of the pulse sequence; constructing a deep neural network for reconstructing high-resolution multi-parametric quantitative magnetic resonance images; generating training samples of the deep neural network; using the training samples to train the deep neural network to obtain trained deep neural networks; scanning a real imaging object using the pulse sequence under the sampling parameters to obtain k-space data of the real imaging object; pre-processing the k-space data of the real imaging object to obtain image domain data of the real imaging object; and inputting the image domain data of the real imaging object into the trained deep neural networks for the reconstructing to obtain the high-resolution multi-parametric quantitative magnetic resonance images of the real imaging object.

Abstract: A method of determining a measure of wave speed or intensity in a fluid conduit uses ultrasound measurements to determine the conduit diameter and fluid velocity in a volume element, each as a function of time, and each at a same longitudinal position of the conduit. The ultrasound measurement to determine fluid velocity is effected by tracking objects within the fluid flow in successive frames sampling the volume element, and obtaining displacement vectors for the objects. A wave speed may be determined from a ratio of the change in fluid velocity at the longitudinal position as a function of time and the change in a logarithmic function of the conduit diameter as a function of time. A measure of wave intensity may be determined as a function of change in determined conduit diameter and corresponding change in fluid velocity.

Abstract: A method for detecting estrus in sows where insemination is carried out when a determination has been made. In a first method images of a rear profile of each sow are analyzed to make a determination from features relating to a shape, size, and/or color of the vulva whether the sow is in estrus. The analysis can use a program where a large number of images showing the vulva area of a plurality of sows known to be in estrus and known not to be in estrus have been previously analyzed to generate data on the previous images to create a program which generates a signal using the data to make the determination. In a second method a boar is confined and brought into close contact with the sows where images and/or sounds of each sow are analyzed to make a determination whether the sow is in estrus.

Abstract: The invention in its various embodiments relates to a method of providing surgical guidance and targeting in robotic surgery systems. The method utilizes data from a navigation system in tandem with 2-dimensional (2D) intra-operative imaging data. 2D intra-operative image data is superimposed with a pre-operative 3-dimensional (3D) image and surgery plans made in the pre-operative image coordinate system. The superimposition augments real-time intraoperative navigation for achieving image guided surgery in robotic surgery systems. Also, a robotic surgery system that incorporates the method of providing surgical guidance and targeting is disclosed. The advantages include minimizing radiation exposure to a patient by avoiding intra-operative volumetric imaging, mobility of tools, imager and robot in and out of the operating space without the need for re-calibration, and relaxing the need for repeating precise imaging positions.

Abstract: An intravascular ultrasound (IVUS) imaging system includes an IVUS imaging device positionable within a blood vessel. The IVUS imaging device includes a circumferential array of acoustic elements. The system includes a processor circuit. The processor circuit controls the circumferential array to emit ultrasound pulses. The ultrasound pulses include a first pulse emitted by a first subset of the circumferential array and a second pulse emitted by a second subset of the circumferential array. The second pulse occurs immediately after the first pulse. The first subset and the second subset are circumferentially spaced from one another around the circumferential array. The second subset is outside of a line of sight of first ultrasound echoes associated with the first ultrasound pulse. The processor circuit generates an IVUS image based on the ultrasound pulses and outputs the IVUS image to a display.

Abstract: The present invention comprises methods, compositions, devices and systems for determining the status of, or treating, a body structure or conduit. An embodiment of the invention comprises a fluid pressure control device for pressure control of fluid introduced into a body structure or conduit.

Abstract: A method for automatically monitoring a robot-assisted movement of a medical object through a hollow organ of a medical object of a patient performed by a robotic system is provided. The method includes tracking movement of the medical object using a medical imaging device such that the medical object and/or the hollow organ is at least partially arranged in a recording region that is mappable by the imaging device. The tracking is effected by a relative movement between the recording system of the imaging device and the patient. An image of the recording region is recorded during the tracking. In each case, a further image is recorded at regular intervals. The current image in each case and/or sensor data from a sensor assigned to the robotic system or the object is evaluated to determine whether a situation relevant to decision-making and/or safety with respect to the robotic system is present.

Abstract: A medical device-placing system including a medical-device tip-location sensor (“TLS”) configured for placement on a chest of a patient, an ultrasound probe, a console, and an alternative-reality headset. The ultrasound probe can be configured to emit ultrasound signals into the patient and receive echoed ultrasound signals from the patient. The console can be configured to transform the echoed ultrasound signals to produce ultrasound-image segments corresponding to anatomical structures of the patient, as well as transform TLS signals from the TLS into location information for a medical device within the patient. The alternative-reality headset can include a display screen through which a wearer of the alternative-reality headset can see the patient. The display screen can be configured to display over the patient a virtual medical per the location information for the medical device within objects of virtual anatomy corresponding to the ultrasound-image segments.

Abstract: An apparatus and method for medical imaging uses a first and second contrast agent, the second agent targeted to a particular tissue type. First images are obtained using the first agent, and second images using the second agent using medical imaging systems. An image processing system is adapted to process the first and second medical images by fitting parameters of a pharmacokinetic model to the first medical images, identifying a nontargeted tissue type, scaling the fitted parameters to best match the nontargeted tissue in the second medical images, executing the pharmacokinetic model to prepare a correction image, and generating corrected medical images by subtracting the correction image from the second medical images.

Abstract: A method of performing an ultrasound-guided procedure may include (a) providing a medical device that has (i) a therapeutic distal tip configured to percutaneously alter internal tissue or bone at a treatment site of a patient; (ii) a source of biocompatible fluid; and (iii) a delivery system configured to selectively deliver a quantity of the biocompatible fluid, with echogenic microbubbles therein, to an area external and adjacent to the therapeutic distal tip. The method may further include subcutaneously advancing the therapeutic distal tip toward the treatment site; delivering a quantity of biocompatible fluid with echogenic microbubbles to the area; observing, via ultrasound, an anatomic structure proximate the treatment site and dispersion of the echogenic microbubbles at the area; and based on a nature and location of the dispersion, steering the therapeutic distal tip relative to the anatomic structure, and continuing to advance the therapeutic distal tip toward the treatment site.

Abstract: Disclosed herein is a medical system (100, 300, 500) comprising: a memory (110) storing machine executable instructions, at least one set of predetermined coordinates (124), and a position identifying algorithm (122). The position identifying algorithm is configured for outputting a set of current coordinates (128) for each of the at least one set of predetermined coordinates in response to receiving a current image descriptive of an object (306, 310). The execution of machine executable instructions (120) causes a computational system (104) to repeatedly receive (200) a current image (126) from a camera system (304).