17 results about "Sonoelastography" patented technology

The embodiment of the invention discloses an ultrasonic elastography method and ultrasonic imaging equipment. In the embodiment of the invention, ultrasonic imaging equipment can respectively obtain a first shear wave elasticity result and a first strain elasticity result of an external area of a focus in target tissue of a testee and obtain a second strain elasticity result of an internal area of the focus in the target tissue; a quantitative elasticity result for the internal region of the lesion is determined based on the first shear wave elasticity result, the first strain elasticity result, and the second strain elasticity result. The shear wave elasticity result and the strain elasticity result of the external region of the focus and the strain elasticity result of the internal region of the focus are accurate, so that the quantitative elasticity result of the internal region of the focus is calculated according to the results; compared with the method of directly measuring the shear wave elasticity of the internal area of the focus, the method has the advantages that the obtained result is more accurate, and the form and boundary of the focus can be presented more accurately.

The invention relates to the technical field of ultrasonic imaging, in particular to an ultrasonic elastography optimization method and application of the ultrasonic elastography optimization method in diffuse lesion ultrasonic elastography classification and grading, and the optimization method comprises the following steps: obtaining multiple groups of shear wave elastography data to construct a three-dimensional space data set, and then, local curve fitting and abnormal peak detection are adopted to eliminate operation errors, spherical space weighted mean filtering is adopted to suppress motion artifacts, and finally, an optimized two-dimensional elastic distribution diagram is generated. And the image classification and grading system associates the optimized data with pathological grading, and constructs a classification and grading model by utilizing machine learning. According to the method, the problem of measurement deviation caused by factors such as operator manipulation difference, patient body position change and tissue motion artifacts in an existing ultrasonic elastography technology is effectively solved, and the accuracy and reliability of elastography data are remarkably improved.

The embodiment of the present application discloses an ultrasonic elastography method and an ultrasonic imaging device. In the embodiment of the present application, the ultrasonic imaging device can acquire a first shear wave elasticity result and a first strain elasticity result of an external region of a lesion in a target tissue of a subject, acquire a second strain elasticity result of an internal region of the lesion in the target tissue, and determine a quantitative elasticity result of the internal region of the lesion based on the first shear wave elasticity result, the first strain elasticity result and the second strain elasticity result. Since the shear wave elasticity result and the strain elasticity result of the external region of the lesion and the strain elasticity result of the internal region of the lesion are all accurate, the quantitative elasticity result of the internal region of the lesion calculated according to the above results is more accurate than the result obtained by directly performing shear wave elasticity measurement on the internal region of the lesion, and the morphology and boundary of the lesion can also be more accurately presented.

The embodiment of the invention provides an ultrasonic elastography method and device, equipment and a storage medium. The ultrasonic elastography method comprises the following steps: determining an energy compensation expression of a transducer for ultrasonic elastography; obtaining an initial signal for performing ultrasonic elastography on the target tissue by using a transducer; compensating the initial signal according to the energy compensation expression to obtain a correction signal; and determining elasticity information of the target tissue according to the correction signal. According to the scheme, the detected initial signal is compensated, and the elasticity analysis of the target tissue is realized, so that the sensitivity and the resolution of ultrasonic elastography are improved, and more accurate elasticity information is obtained.

The percutaneous intervention ultrasonic elastography catheter needle comprises an outer catheter, a puncture tip is arranged at the front end of the outer catheter, an ultrasonic assembly containing cavity is formed in the position, close to the puncture tip, of the outer catheter, an ultrasonic window is formed in the side face of the ultrasonic assembly containing cavity, and the outer catheter is provided with a first channel formed in the axial direction; the front end of the first channel is connected with the ultrasonic component accommodating cavity; the ultrasonic assembly is arranged in the ultrasonic accommodating cavity, and a scanning sound beam surface of the ultrasonic assembly corresponds to the position of the ultrasonic window; and the negative pressure passage is arranged to be connected with a negative pressure providing device so as to form / release negative pressure between the ultrasonic assembly and the in-vivo tissue. According to the percutaneous intervention ultrasonic elastography catheter needle, by controlling starting / stopping of negative pressure in the first channel, instant negative suction / release of tissue near the ultrasonic assembly can be achieved, and the ultrasonic elastography function can be achieved.

Ultrasonic elastography processing to characterize a medium of interest The disclosure relates to an ultrasonic elastography processing method and a corresponding device (20).The method comprises: obtaining initial data (DT1) representative of an ultrasonic response (16) of a medium of interest (4) to ultrasonic pulses (8) focused in the medium and to sounding waves (14) emitted sequentially according to distinct values ​​(VL) of at least one parameter (PR) of the sounding waves; generating, from the initial data respectively for each said parameter value (VL), second data representative of shear wave propagation in the medium; estimating, from the second data associated with each said parameter value (VL), an individual velocity (VI) representative of the shear wave propagation speed for said value respectively; and estimating at least one velocity (VC), called the compound velocity, of the shear waves by a combination of the individual velocities. Figure for the abstract: Figure 6.

The utility model relates to the technical field of ultrasonic elastography measurement auxiliary scales, in particular to an ultrasonic elastography measurement auxiliary scale which is convenient to use and comprises a positioning measurement slender rod, a sliding positioning groove is formed in the middle of the positioning measurement slender rod, and a plurality of positioning mark blocks are arranged in the middle of the sliding positioning groove. Sliding positioning blocks are arranged on the left portion of the positioning gauge block, each sliding positioning block is matched with the corresponding sliding positioning groove, a threaded hole is formed in the top end of each sliding positioning block, a positioning bolt is arranged at the top end of each threaded hole, each positioning bolt is matched with the corresponding threaded hole, and a positioning suction cup is arranged at the bottom end of the positioning measuring slender rod.

An ultrasonic elastography method (1300), an ultrasonic dispersion measurement method (100, 800, 900, 1200), an apparatus (1000, 1100) and a storage medium, the ultrasonic dispersion measurement method (100, 800, 900, 1200) comprising: controlling an ultrasonic probe (1010) to emit a first ultrasonic wave to a target object, receiving an echo of the first ultrasonic wave, and acquiring a first ultrasonic echo signal (S110); generating a first ultrasound image based on the first ultrasound echo signal and acquiring a region of interest on the first ultrasound image (S120); controlling the ultrasound probe (1010) to emit a second ultrasound wave to the region of interest for producing propagation of shear waves in the region of interest (S130); controlling the ultrasonic probe (1010) to transmit a third ultrasonic wave to the region of interest, receiving an echo of the third ultrasonic wave, and acquiring a third ultrasonic echo signal (S140); acquiring shear wave information of the region of interest based on the third ultrasonic echo signal (S150); and extracting shear wave signals of at least two different frequency components from the shear wave information, and acquiring and displaying a shear wave dispersion result based on respective propagation speeds of the shear wave signals of at least two different frequency components (S160). And information related to shear wave frequency dispersion can be obtained.

An ultrasonic elastography system and method, the system comprising: a transmitting-receiving module (11) for transmitting ultrasonic pulses to a target (2) to be detected and receiving ultrasonic echo signals reflected by the target (2) to be detected; an imaging display module (13) for processing the received ultrasonic echo signals and displaying an image (I) obtained after the processing; an analysis module (15) for detecting a region of interest (R) selected by an operator on the image (I) and a shell region (S), calculating elastic parameters of the reference region and the shell region (S) respectively, and analyzing and outputting an analysis result according to the calculation results of the two. By extracting and processing the elastic parameters of the shell region (S) of the region of interest (R) selected by the operator from the image (I), and comparing the elastic parameters with those of other regions, more information can be provided.

The utility model discloses an auxiliary positioning device for lower limb ultrasonic elastography, belongs to the technical field of auxiliary ultrasonic elastography, and solves the problem that no device is used for assisting the lower limbs of a testee to keep a certain posture during lower limb ultrasonic imaging in the prior art. The device comprises a bottom plate, a thigh supporting telescopic lifting mechanism, a shank telescopic rotating mechanism and a foot sliding lifting mechanism. The thigh supporting telescopic lifting mechanism and the foot sliding lifting mechanism are arranged on the two sides of the upper surface of the bottom plate respectively, and the shank telescopic rotating mechanism is installed between the thigh supporting telescopic lifting mechanism and the foot sliding lifting mechanism. Through the arrangement of the thigh supporting telescopic lifting mechanism, the shank telescopic rotating mechanism and the foot sliding lifting mechanism, the lower limbs of a tested person can be kept in a certain posture under the assistance of the lower limbs, so that ultrasonic elastography of the lower limbs is facilitated.

The application discloses an ultrasonic elasticity imaging pressure calibration device, which comprises a machine body, four pressure calibration components arranged on the machine body, four quadrant areas formed by the four pressure calibration components, a pressure sensor arranged on the machine body, a phantom arranged in each of the four pressure calibration components, a standard human body tissue hardness of the phantom, a working area arranged on the pressure calibration component at the top and used for placing an ultrasonic probe. The application solves the defect that the existing pressure calibration of the ultrasonic elasticity imaging equipment in a hospital needs to send the ultrasonic elasticity imaging equipment to be calibrated back to the manufacturer for calibration, thereby saving time for the hospital.

The invention relates to the technical field of ultrasonic imaging, in particular to an ultrasonic elastography method and device. The ultrasonic elastography method comprises the following steps: acquiring a pre-compression ultrasonic image and a post-compression ultrasonic image of a to-be-detected tissue, performing layer-by-layer downsampling on the basis of the pre-compression ultrasonic image to obtain a plurality of layers of pre-compression ultrasonic images, and performing layer-by-layer downsampling on the basis of the post-compression ultrasonic images to obtain a plurality of layers of post-compression ultrasonic images; determining the current layer displacement of each target area in the current layer pre-compression ultrasonic image based on the current layer pre-compression ultrasonic image and the current layer post-compression ultrasonic image; determining a current-layer displacement field based on the current-layer displacement of all target areas in the ultrasonic image before compression of the current layer; and judging whether the ultrasonic image of the current layer before compression is the ultrasonic image of the lowermost layer before compression, and if so, determining the displacement field of the current layer as a final displacement field. In this way, the calculation complexity of image data processing can be reduced, and the efficiency and accuracy of displacement estimation can be improved.

The application discloses a percutaneous intervention ultrasonic elastic imaging catheter needle, which comprises an outer catheter (1), a puncture tip (101) at the front end of the outer catheter (1), an ultrasonic assembly accommodating cavity (102) at the position of the outer catheter (1) close to the puncture tip (101), an ultrasonic window (103) at the side position of the ultrasonic assembly accommodating cavity (102), the outer catheter (1) being provided with a first channel (104) arranged along the axial direction, the front end of the first channel (104) being connected with the ultrasonic assembly accommodating cavity (102), an ultrasonic assembly (2) arranged in the ultrasonic assembly accommodating cavity (102), the scanning sound beam surface of the ultrasonic assembly (2) corresponding to the position of the ultrasonic window (103), and a negative pressure passage arranged for being connected with a negative pressure providing device (9) to form / release negative pressure between the ultrasonic assembly (2) and in-vivo tissue (7). The percutaneous intervention ultrasonic elastic imaging catheter needle can realize instantaneous negative suction / release of the tissue near the ultrasonic assembly (2) by controlling the start / stop of the negative pressure in the first channel (104), and can realize the ultrasonic elastic imaging function.

The embodiment of the present application discloses an ultrasonic elastography method and an ultrasonic imaging device. The ultrasonic imaging device determines a stress result according to a shear wave elasticity reference result and a strain elasticity reference result, determines a first quantitative elasticity result of a target region according to the stress result and a strain elasticity result corresponding to the target region, determines a second quantitative elasticity result of a first region of interest according to a shear wave elasticity result of the first region of interest and the first quantitative elasticity result of the target region, and displays the second quantitative elasticity result. Since the shear wave elasticity reference result, the strain elasticity reference result and the strain elasticity result of the target region are all accurate, the first quantitative elasticity result and the second quantitative elasticity result calculated according to the above results are more accurate than a result obtained by directly performing shear wave elasticity measurement on the target region, and can more accurately describe the hardness condition of the tissue.

An ultrasonic elastography method (1300), an ultrasonic dispersion measurement method (100, 800, 900, 1200), an apparatus (1000, 1100) and a storage medium, the ultrasonic dispersion measurement method (100, 800, 900, 1200) comprising: controlling an ultrasonic probe (1010) to emit a first ultrasonic wave to a target object, receiving an echo of the first ultrasonic wave, and acquiring a first ultrasonic echo signal (S110); generating a first ultrasound image based on the first ultrasound echo signal and acquiring a region of interest on the first ultrasound image (S120); controlling the ultrasound probe (1010) to emit a second ultrasound wave to the region of interest for producing propagation of shear waves in the region of interest (S130); controlling the ultrasonic probe (1010) to transmit a third ultrasonic wave to the region of interest, receiving an echo of the third ultrasonic wave, and acquiring a third ultrasonic echo signal (S140); acquiring shear wave information of the region of interest based on the third ultrasonic echo signal (S150); and extracting shear wave signals of at least two different frequency components from the shear wave information, and acquiring and displaying a shear wave dispersion result based on respective propagation speeds of the shear wave signals of at least two different frequency components (S160). And information related to shear wave frequency dispersion can be obtained.

The invention relates to the technical field of ultrasonic images and image processing, in particular to a three-dimensional elastography method based on automatic full-volume breast ultrasound, which comprises the following steps: acquiring a three-dimensional volume ultrasonic image of a breast of a patient generated by scanning of automatic breast ultrasound equipment; on the basis of an automatic breast ultrasonic imaging principle, the three-dimensional volume ultrasonic image is preprocessed so as to be decomposed into multiple frames of two-dimensional ultrasonic gray-scale images which are recorded as B-US; according to the automatic mammary gland ultrasonic elastography method based on the GAN generative adversarial network framework, the three-dimensional volume ultrasonic image can be processed to obtain the target three-dimensional tissue elastic image corresponding to the three-dimensional volume ultrasonic image, the limitation that automatic mammary gland ultrasonic cannot carry out elastography is solved, and the automatic mammary gland ultrasonic elastography efficiency is improved. The visual three-dimensional elastic image conforming to the clinical use habit of a doctor can be conveniently generated, the acquisition efficiency of the three-dimensional elastic image is improved, and the diagnosis of diseases is facilitated.

The invention relates to the technical field of medical image analysis, in particular to a high-resolution ultrasonic elastography quantitative analysis system, which integrates an ultrasonic unit, an image processing unit and an elasticity analysis unit, and realizes emission, receiving, signal conversion, displacement wave map generation and tissue elasticity value calculation of high-frequency ultrasonic waves. According to the system, through technical innovation, the spatial resolution, the image quality and the quantitative analysis capability are improved, and the limitation of the prior art is overcome; the system comprises a high-frequency probe, a driving assembly, a scanning control unit, a high-speed analog / digital converter, a low-pass filter, an envelope detection processor, a displacement processor, an image processing algorithm module, an image drawing module and a calculation module, and provides a powerful tool for early diagnosis, accurate classification and treatment evaluation of soft tissue lesions. It is predicted that after the method is widely applied to clinical practice, the diagnosis accuracy is improved, invasive examination is reduced, reliable basis is provided for personalized medical treatment, and patients are benefited.