1060 results about "Ultrasonic imaging" patented technology

The invention provides a full-focusing ultrasonic imaging method for multi-modal damage of a composite material, and the method comprises the steps: calculating the correlation of the reflection intensity of a sound wave signal at different moments and spatial positions through employing an established quantitative corresponding relation, recognizing a close contact region and a loose separation region between a bonding layer and a substrate, and carrying out the recognition of the close contact region and the loose separation region. Judging the continuity distribution condition of the interface contact state; according to the continuous distribution condition of the interface contact state, key feature points of dynamic damage evolution are extracted, a time sequence analysis method is adopted to track the feature points to adapt to damage features of dynamic changes, and prediction data of the damage expansion trend are obtained; and according to the dynamic representation result of the interface state, fusing the obtained multi-period signal characteristic data, carrying out quantitative calculation on the area change of the debonding region, judging the residual distribution state of the bonding strength, and obtaining a comprehensive evaluation report of the damage degree of the bonding interface.

The invention discloses a deep learning-based multimodal image fusion method for soft tissue photoacoustic / ultrasound imaging. Steps: an ultrasound-photoacoustic imaging device acquires photoacoustic and ultrasound images of human soft tissue and performs size normalization processing; an input spatial transformation module converts the images to the YCbCr space; an input pre-convolution module modifies the number of data channels; an input multi-scale feature extraction module extracts salient features from the source images; an input filter prediction module derives multi-scale filters; and an input filter fusion and adaptive enhancement module combines the input source images to obtain the final fused result. The invention has superior fusion performance compared to several traditional fusion methods and deep learning-based fusion methods, and more importantly, it exhibits excellent real-time performance. Furthermore, various modes of photoacoustic / ultrasound fusion extension experiments have verified the effectiveness of the method proposed in the invention.

The invention discloses lithotripsy equipment and a control method thereof. The lithotripsy equipment comprises a lithotripsy device, an optical tracking device, a display and control device and an ultrasonic imaging device, the lithotripsy device comprises a mechanical arm module, a shock wave module and a control module; the mechanical arm module and the shock wave module are both electrically connected with the control module, and the control module and the optical tracking device are both electrically connected with the display and control device. The ultrasonic imaging device comprises a handheld ultrasonic probe; the handheld ultrasonic probe is in communication connection with the display and control device; the mechanical arm module comprises a mechanical arm, the shock wave module comprises a shock wave generator, and the shock wave generator is arranged at the front end of the mechanical arm; and a plurality of optical reflection markers are arranged on the backs of the handheld ultrasonic probe and the shock wave generator. According to the lithotripsy equipment provided by the embodiment of the invention, the intelligent degree of the extracorporeal shock wave lithotripsy machine is improved, the extracorporeal shock wave lithotripsy treatment process is simplified, and the treatment positioning precision is improved.

The invention belongs to the technical field of geological engineering monitoring and multi-physics field intelligent sensing, and discloses a separation grouting slurry migration monitoring method and system, and the method comprises the steps: constructing an acoustics-optics-electricity-electromagnetism multi-physics field coupling monitoring system; a grouting hole and a monitoring drilling hole array are arranged in a target stratum, a distributed optical fiber sensor, a drilling hole ultrasonic imager, a resistivity measuring device and a transient electromagnetic detection device are installed, and a three-dimensional monitoring network is formed; synchronously acquiring sound field, light field, electric field and magnetic field data; four-field monitoring data and overlying strata multi-parameter observation data are fused, a coal seam mining three-dimensional overlying strata separation model is constructed, and a slurry diffusion three-dimensional visualization model is generated through numerical simulation; and based on the four-field monitoring response difference of the separation space before and after grouting, in combination with a monitoring frequency domain correction model of multiple indexes of grout diffusion, the diffusion range, compactness and filling effect of the grouting grout are evaluated, and abnormal early warning is triggered.

The invention discloses an array type optical fiber ultrasonic imaging system based on multi-path delay parallel detection, and belongs to the technical field of ultrasonic detection and imaging. The main working process of the system is as follows: continuous laser output by a laser is modulated into pulse laser to be transmitted to an optical fiber ultrasonic detector array, and ultrasonic waves emitted by an ultrasonic wave generating device act on each detection array element to cause the property change of a detection optical signal; through multi-path time delay with the optical fiber as the medium, the detection optical signal forms different transmission time in each channel, is distinguished in a time division mode and is combined into a single path to be output. After photoelectric conversion, electric signals containing multi-channel detection information are collected in parallel, the signals are analyzed at a terminal processor by means of an imaging algorithm with an array parallel architecture, information of a to-be-detected target is obtained, and image reconstruction is completed. The array type optical fiber ultrasonic imaging system has the advantages of being accurate and rapid in scanning detection, simple and compact in system structure and efficient and high-quality in image reconstruction, and large-scale and low-cost array type optical fiber ultrasonic imaging is achieved.

An ultrasound-imaging system includes an ultrasound probe coupled with a console. Operations of the system can include detecting one or more blood vessels within the ultrasound image and identifying each blood vessel as a vein, an artery or other anatomic element using doppler ultrasound functionality of the ultrasound probe. Operations can also include determining a confidence for the blood vessel identification and defining a window for doppler ultrasound operation. Operations can further include assessing a blood flow rate within blood vessels, and superimposing notifications atop the ultrasound image pertaining to the identity of the blood vessel including a confidence for the identity.

The invention discloses an ultrasonic image analysis method and an ultrasonic imaging system. The method comprises the following steps: acquiring multiple frames of ultrasonic images of the heart of a target object; automatically determining a myocardial contour of the multi-frame ultrasonic image; at least determining the image quality of the myocardial contour of the multi-frame ultrasonic image; determining a modification priority level of a myocardial contour region of each multi-frame ultrasonic image based on the image quality; and displaying at least one frame of ultrasonic image in the multiple frames of ultrasonic images and the corresponding identification information for identifying the modification priority. According to the ultrasonic image analysis method and the ultrasonic imaging system provided by the invention, the modification priority level of the ultrasonic image is determined, and the ultrasonic image and the corresponding identification information for identifying the modification priority level are displayed, so that the visual prompt for recommending the preferential modification frame is realized, and the operation and use efficiency of a doctor is optimized.

A method of diagnosing a condition of bodily tissue using a computer, the method comprising comparing, using a computer, a 3D tissue model derived from an ultrasound scan of the bodily tissue with at least one 3D tissue model having common tissue with the bodily tissue, and diagnosing a condition of the bodily tissue responsive to comparing the 3D tissue models.

The invention discloses an ultrasonic blood flow quantitative analysis method based on a skeletonized image, which comprises the following steps of: firstly, selecting a target analysis area containing a micro blood flow image in a grey-scale map formed by ultrasonic imaging; the method comprises the following steps of: firstly, carrying out normalization processing, nonlinear gray mapping, Gaussian filtering, minimum filtering and high-pass filtering in sequence to realize enhancement, noise suppression and edge enhancement on a target image, and finally, carrying out binaryzation on the image, and carrying out skeleton extraction based on an iterative refinement principle to obtain a final blood flow skeleton. According to the method, preprocessing such as noise suppression and edge enhancement is performed on the ultrasonic micro blood flow image before binarization and skeleton extraction, so that the accuracy and robustness of skeleton extraction are remarkably improved, and a reliable basis is provided for subsequent quantitative analysis and quantitative evaluation of a vascular network structure.

The invention relates to a high-signal-to-noise-ratio ultrasonic imaging method and device for internal defects of a curved surface component, a medium and a product, and belongs to the technical field of ultrasonic imaging. According to the method, a linear array ultrasonic probe is adopted to carry out single-time ultrasonic excitation on a curved surface component, a full-matrix echo signal is obtained, first arrival time extraction is carried out on the collected signal, an ultrasonic incident angle is estimated, and discrete coordinates of the surface of the component are obtained; the method comprises the following steps of: fitting a curved surface model, constructing an equivalent virtual array model, calculating transmitting and receiving delay time of each pixel point, realizing initial full-focusing beam forming of signals, estimating an expected signal variance and a noise variance based on maximum likelihood estimation, constructing an initial coherent beam forming machine and performing iterative updating, and finally forming a beam. And taking the coherent beam synthesizer obtained by iteration as a weighting factor, acting on an initial beam synthesis signal for weighting, and completing image reconstruction. The method has the advantages of being high in calculation efficiency, low in system overhead, high in imaging signal-to-noise ratio and the like, and accurate imaging can be achieved in a curved surface structure scene.

The invention relates to the technical field of image reconstruction, and provides an ultrasonic sound velocity image reconstruction method based on deep learning, which comprises the following steps: fixing an array probe and coupling the array probe with a detected workpiece, intercepting and collecting samples and forming a snapshot set, constructing estimation of a covariance matrix, and calculating a channel weighting coefficient. Weighting to generate a preliminary imaging graph and a pixel-level confidence graph; splicing the preliminary imaging image, the pixel-level confidence map and the corresponding multi-channel features to form an input feature map, and processing and outputting a reconstructed ultrasonic imaging image and a corresponding confidence correction image by using a deep neural network; generating candidate reconstructed images in a plurality of spatial scales, and weighting and fusing components of the candidate images according to pixels on each scale according to scale reliability and pixel-level confidence to obtain a fused reconstructed image; candidate extraction, feature quantization, probabilistic discrimination and severity grading are implemented, and a detection report is generated in a standardized format and recorded for subsequent backflow training.

The invention is suitable for the technical field of ultrasonic imaging, and provides a three-dimensional ultrasonic imaging method and system, computer equipment and a computer program product, and the method comprises the steps: transmitting a multi-angle composite plane wave sequence to a target region through a one-dimensional ultrasonic array with the frequency gradual change characteristic in the elevation direction, and receiving a reflected echo signal sequence, generating a target gray-scale image sequence corresponding to the echo signal sequence, acquiring coordinates of each ultrasonic contrast agent microbubble in each frame of gray-scale image, generating a two-dimensional coordinate set, calculating the axial half-peak full width of a point spread function region of each ultrasonic contrast agent microbubble, and calculating the axial half-peak full width of the point spread function region of each ultrasonic contrast agent microbubble; determining the coordinate of each ultrasonic contrast agent microbubble in the elevation angle direction based on the axial half-peak full width, generating an elevation angle coordinate set, and generating a three-dimensional contrast image of the target area based on the two-dimensional coordinate set and the elevation angle coordinate set. According to the method provided by the invention, the problem that three-dimensional ultrasonic imaging is limited by the surface ultrasonic array can be solved, and low-cost, simple and efficient three-dimensional ultrasonic imaging based on the one-dimensional ultrasonic array is realized.

The invention provides an intraoperative real-time navigation system based on digital twinning, and relates to the technical field of digital twinning, and the system comprises a data collection module which is used for obtaining the three-dimensional form data of a liver and a biliary tract through an intraoperative ultrasonic imaging device, and collecting the elastic modulus distribution parameters of liver parenchyma and a bile duct wall; the construction registration module is used for constructing a real-time digital twin in the liver and gall area based on the three-dimensional form data and the elastic modulus distribution parameters, and carrying out multi-mode non-rigid registration on the digital twin and the liver surface topography and the vascular structure which are subjected to optical coherence tomography in the operation; therefore, a dynamic space mapping relation between the organ structure and the image data is established. According to the method, real-time navigation in the operation is realized through digital twinning, the obstacle avoidance path is updated, and the safety and efficiency in the operation are improved.

The invention discloses a three-dimensional ultrasonic imaging method, a related device, equipment and a storage medium, and the method comprises the steps: obtaining first echo data and second echo data of a target object detected by an ultrasonic array in a row excitation column receiving mode and a column excitation row receiving mode, and building a three-dimensional coordinate system based on the ultrasonic array; based on the echo signal of the array element, the flight time of the ultrasonic signal between the array element and the target point is extracted; analyzing the flight time based on the echo signal of the array element, and calculating to obtain a space coordinate of a target point pointed by the array element; obtaining a first three-dimensional image based on the spatial coordinates of the target point respectively analyzed by each echo signal in the first echo data, and obtaining a second three-dimensional image based on the spatial coordinates of the target point respectively analyzed by each echo signal in the second echo data; and based on the first three-dimensional image and the second three-dimensional image, fusing to obtain a target three-dimensional image. According to the scheme, the speed, efficiency and precision of three-dimensional ultrasonic imaging can be improved.

The invention discloses a bimodal real-time three-dimensional imaging method based on an LED light source, which is applied to a bimodal real-time three-dimensional imaging system based on the LED light source, and comprises the following steps: step 1, calibrating a calibration plate on an ultrasonic transducer, and obtaining a transformation matrix from a two-dimensional image coordinate system to a calibration plate coordinate system; step 2, moving an ultrasonic transducer to scan an imaging target, synchronously acquiring and reconstructing a two-dimensional ultrasonic image and a two-dimensional photoacoustic image, and tracking and recording pose information of the calibration plate in real time in an optical positioning mode, namely a transformation matrix from a calibration plate coordinate system to a camera coordinate system; step 3, based on the transformation matrix, mapping a two-dimensional ultrasonic imaging result and a two-dimensional photoacoustic imaging result obtained in real time to the same three-dimensional space through coordinate transformation; and 4, respectively adjusting the color and transparency parameters of the ultrasonic and opto-acoustic two modal images, fusing and rendering in real time, and displaying the bimodal three-dimensional image.

The invention relates to the technical field of crustal stress measurement, in particular to a hydraulic fracturing multi-parameter in-situ crustal stress detection device, which comprises an upper packer, a measurement section and a lower packer which are connected in sequence, and further comprises a data acquisition unit, a fracturing section multi-parameter acquisition device and a fracturing crack ultrasonic imaging synchronous detection device, the fracturing section multi-parameter acquisition device and the fracturing crack ultrasonic imaging synchronous detection device are both mounted in the measurement section and can synchronously observe the fracturing section to realize a parallel observation mode; the fracturing section multi-parameter acquisition device comprises a flow sensor and a pressure sensor; the fracturing crack ultrasonic imaging synchronous detection device is used for synchronously observing the dynamic change process of the fracturing crack; and the data acquisition unit is used for collecting flow data and pressure data, establishing a pressure-flow curve to obtain crustal stress data, and collecting dynamic change process data of fracturing cracks to determine the magnitude and direction of crustal stress.

The invention provides a three-dimensional winding imaging de-noising method and system based on a physical constraint optimization algorithm, and belongs to the field of ultrasonic imaging de-noising, and the method comprises the steps: collecting and preprocessing an ultrasonic echo signal of a transformer winding, and generating a joint coordinate matrix; recombining the joint coordinate matrix into a three-dimensional winding data parameter matrix, constructing a physical constraint term based on an amplitude and energy coupling relationship of ultrasonic waves in a winding medium, and constructing a fitness function for evaluating coordinate data quality in combination with the physical constraint term; initializing an iteration parameter and a solution space boundary parameter of a physical constraint optimization algorithm, and executing multiple rounds of iteration optimization by taking the three-dimensional winding data parameter matrix as initial data until a convergence condition is met; and generating a de-noised three-dimensional winding image through coordinate system mutual verification and three-dimensional point cloud reconstruction by using the optimized coordinate parameters. According to the invention, the interference of electromagnetic pulse noise of a specific frequency band is effectively suppressed, and the precision and definition of three-dimensional winding imaging are improved.

The invention provides a nonlinear ultrasonic detection method for micro-damage of concrete, and particularly relates to the technical field of material detection. The method specifically comprises the following steps: S1, defining a scanning area and planning a scanning path; s2, exciting fundamental frequency ultrasonic waves to the signal excitation points in the signal excitation area in sequence through a transmitting probe by using a pulse reversal technology; s3, receiving the fundamental frequency ultrasonic waves and the generated second harmonics at the signal excitation points at the corresponding positions of the signal receiving area at the same time in sequence by using a receiving probe; s4, scanning all signal excitation points on the whole surface of the to-be-detected concrete scanning area according to a set scanning path; s5, nonlinear ultrasonic parameters on all sound paths are calculated; and S6, constructing a nonlinear ultrasonic imaging spectrum and judging the spatial distribution and damage degree of the micro-damage of the to-be-detected concrete. According to the method, the concrete micro-damage is represented by directly utilizing nonlinear ultrasonic parameters, and the detection limit of ultrasonic waves and the resolution of low-frequency ultrasonic waves are effectively improved on the premise that the penetrating power of the low-frequency ultrasonic waves is reserved.

A system for generating a report from ultrasound imaging includes an ultrasound imaging system configured to provide ultrasound image data from examination of a subject, and a server configured to execute a trained, AI driven large language model. The ultrasound imaging system includes a processor configured to receive the ultrasound image data, generate an ultrasound image, and generate a data set indicative of measurements in the ultrasound image. Also included is a display and a GUI including a report button selectable by a user to request a report. A prompt string generator is configured to receive the user input, extract a type of examination and the data set from the processor, translate them into a natural language prompt string, and output the prompt string to an API readable by the AI driven large language model. The AI driven large language model automatically generates the report for display.

Provided are a medical hydrogel containing ultrasonically-imageable bubble microspheres and a preparation method thereof. The medical hydrogel containing the ultrasonically-imageable bubble microspheres is formed by in-situ crosslinking of a polyethylene glycol precursor solution and a poly-amino crosslinker solution containing bubble microspheres, the polyethylene glycol precursor solution consisting of a multi-arm polyethylene glycol derivative and a buffer solution A.

The invention discloses a method for monitoring VOC (Volatile Organic Compounds) unorganized emission by utilizing an ultrasonic imaging technology, and belongs to the technical field of environment monitoring. The method comprises the following steps: acquiring ultrasonic data of a chemical industry park production device through an ultrasonic imaging module; 20-100 kHz leakage ultrasonic signals are separated, and sound pressure is read; positioning a leakage source in combination with coordinate mapping and a digital twinborn model, and marking sound pressure with a color code; a fitting coefficient is obtained through laboratory calibration, the leakage rate is calculated, the total leakage volume is calculated according to the duration, and gas density can be combined to be converted into the total mass. The method has the advantages of wide-area coverage, real-time response, accurate positioning, small monitoring deviation and the like, solves the problems of multiple blind areas and difficulty in quantification of a traditional method, and provides data support for safety and environment management of chemical industrial parks.

An ultrasonic imaging system has a bias-switchable, ultrasonic transducer array and a bipolar voltage source. The array has a dielectric layer having a top surface and a bottom surface; top and bottom electrode strips in electrical contact with the top and bottom surface of the dielectric layer, the bottom electrode strips being oriented at a non-zero angle relative to the top electrode strips. There is an acoustic matching layer or multiplicity of matching layers on the front-side of the array and a leakage-current mitigation layer. The bipolar voltage source is connected to each of the top and bottom electrode strips to induce a polarization in the dielectric layer, the bipolar voltage source being capable of switching between a high voltage state and a low voltage state. A controller controls the bipolar voltage source, and pulsing to and receiving signals from the top and bottom electrode strips.

The invention relates to the technical field of medical instruments, in particular to an intelligent cleaning monitoring system and method for an ultrasonic image probe, and aims to solve the problems that existing cleaning is lack of quantitative monitoring, subjective in effect, difficult in data tracing and the like. A probe identifier is obtained before cleaning, and a reference map is generated through multispectral pre-scanning; cavitation energy indexes and cleaning fluid parameters are monitored in real time in the cleaning process; performing multispectral scanning after cleaning, and quantifying a residual pollutant index; calculating a cleaning mass fraction by fusing the indexes; and generating a digital cleaning certificate according to the score, and encrypting, storing and tracing. According to the scheme, objective quantification of the effect, real-time process monitoring and whole-process data tracing are realized, and the problems of opaque cleaning, unreliable result, difficulty in responsibility tracing and the like are solved.

The present disclosure proposes a method for monitoring simultaneously vascular activity in at least one region of a brain, of a human or animal, and the temporal evolution of physiological parameters, the method including generating a sequence of Doppler or Ultrasound Localization Microscopy "ULM" images of said brain with an ultrasound probe and simultaneously computing physiological information based on a temporal series of brain tissue motion data in a selected region of interest of the brain.

Disclosed is an ultrasonic imaging system including a probe configured to transmit an ultrasonic signal to an object including a liver and receive an ultrasonic echo signal reflected from the object, a display configured to display an ultrasonic image, an input interface configured to obtain user input, memory configured to store an artificial intelligence model, and at least one processor. The at least one processor is configured to obtain ultrasonic raw data by processing the ultrasonic echo signal, generate a plurality of raw image frames including different characteristic information by processing the ultrasonic raw data, obtain quantitative data about a liver disease from the artificial intelligence model by inputting the plurality of raw image frames into the artificial intelligence model, and display the ultrasonic image and the quantitative data about the liver disease together on the display.

The invention relates to a multi-modal fusion imaging system and method for medical ultrasonic imaging. The system comprises a calculation module used for calculating the time phase similarity according to the similarity between a first ECG curve and a second ECG curve and the difference between the positions of a CT image and an ultrasonic image in the ECG wave bands to which the CT image and the ultrasonic image belong; the first generation module is used for determining a reference ultrasonic image according to the time phase similarity and generating a virtual ultrasonic image according to shooting parameters of the CT image and the reference ultrasonic image; the determining module is used for determining the deformation degree of the region according to the offset of the plurality of feature points in the next frame of ultrasonic image; the second generation module is used for calculating a deformation field between adjacent ultrasonic images frame by frame according to the displacement of a plurality of control points of the previous frame of ultrasonic image so as to generate a virtual ultrasonic image of the next frame of ultrasonic image; and the output module is used for fusing the virtual ultrasonic image sequence and the ultrasonic image sequence and outputting an enhanced ultrasonic image sequence. The detail display precision of the ultrasonic image can be improved and enhanced.

A system and method are provided for controlling an ultrasound probe having a transducer array of transducer elements. The method includes receiving echo signals at the transducer elements reflected in near and / or far fields of a medium, and outputting electrical echo signals; digitizing the electrical echo signals; multiplexing the digitized echo signals to output a first set of the digitized echo signals corresponding to a first set of transducer elements of the plurality of transducer elements defining a small aperture for receiving the echo signals reflected in the near field; grouping transducer elements of a second set of transducer elements into sub-arrays providing a second set of digitized echo signals; summing together the digitized echo signals from the second set of the transducer elements within each sub-array for receiving echo signals reflected in the far field, wherein the second set of transducer elements contains more transducer elements than the first set of the transducer elements; and outputting an echo data stream including the first and / or second sets of the digitized echo signals to a host system via a communication interface having a fixed maximum bandwidth.

The invention discloses an ultrasonic detection method for a composite material structure, and the method is a layered detection imaging method based on transmission ultrasound time reversal adaptive focusing, and comprises the steps: arranging phased arrays at two sides of a standard component and a to-be-detected large-thickness variable cross-section composite material structure; a direct contact method is adopted, prior material properties of a tested piece do not need to be input, and deflection of an ultrasonic beam is regulated and controlled by time delay excitation, so that ultrasonic imaging distortion caused by a complex fiber trend can be effectively avoided, and detection imaging of layering defects of a large-thickness variable-cross-section composite material structure is realized.

The invention belongs to the technical field of biological medicine, and particularly discloses nano composite particles based on a metal organic framework and a preparation method and application of the nano composite particles. The nano-composite particles are constructed through electron adsorption and coordination based on a nano-scale metal organic framework, and under the acidic microenvironment and ultrasonic irradiation of tumors, the nano-composite particles can be decomposed and released in a responsive manner, play a role of a sound-sensitive agent, generate a large amount of active oxygen and induce tumor cells to generate immunogenic death, so that the tumor cell immunogenicity is improved, and the tumor cell immunogenicity is improved. Further, more cytotoxic T lymphocytes are promoted to infiltrate a tumor microenvironment, T cell mediated anti-tumor immune response is recovered, and tumor metastasis is effectively prevented. The carrier metal organic framework ZIF8 of the nano-composite particles can serve as a sound-sensitive agent to generate active oxygen, the function of ultrasonic imaging of tumor tissue can be achieved, the effect of diagnosis is achieved while treatment is conducted, tumor diagnosis and treatment monitoring can be achieved at the same time through one-time drug administration, and a new strategy is provided for precise medical treatment.

The invention discloses a preparation method of a silicon dioxide-epoxy resin composite material, the acoustic impedance of the composite material is controlled by adjusting the volume fraction of the silicon dioxide-epoxy resin composite material, an ultrasonic transducer prepared by utilizing the composite material and a preparation process thereof, and an imaging system designed by utilizing the ultrasonic transducer. By designing the matching layer and the backing layer with specific acoustic impedance, seamless fusion of ultrasonic imaging and photoacoustic imaging is realized, the transducer has ultrahigh sensitivity, broadband characteristic and high optical transparency, shows bimodal imaging capability of high contrast and high resolution, and solves the problem that a traditional transparent ultrasonic transducer is insufficient in acoustic performance.