5 results about "Ultrasound elastography" patented technology

The application relates to the technical field of medical ultrasonic imaging and digital image processing, in particular to an ultrasonic elasticity image denoising and enhancing method, which comprises the following steps: acquiring original ultrasonic elasticity imaging data to be processed, and constructing a structure tensor matrix reflecting local texture directions; solving the anisotropic coherence degree of each pixel point, obtaining a structure attribute discrimination result, and constructing a structure confidence atlas; collecting the point spread function characteristics of an ultrasonic imaging system, establishing a speckle noise statistical model; obtaining a local smoothing coefficient of the first iteration, and performing anisotropic diffusion correction on an initial elasticity distribution matrix to obtain a first modified elasticity image matrix, and updating the structure confidence atlas to obtain a final denoised and enhanced target elasticity image; the application effectively suppresses multiplicative granular speckles, eliminates the ladder effect or artifacts easily generated by conventional methods, and significantly improves the image signal-to-noise ratio.

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.

This application relates to the field of image enhancement, specifically to an intelligent image enhancement method for liver ultrasound elastography. The method includes: acquiring multiple frames of images of the patient's liver during each respiratory cycle; for each frame, determining the similarity between the frame and other frames based on the relative difference and deviation of the contour gradient of the liver region between the frame and adjacent respiratory cycles; clustering the liver region of each frame to obtain multiple clusters, and obtaining a sharpness weight for each cluster based on the gradient amplitude and motion velocity parameters; obtaining a respiratory influence coefficient based on the difference in hardening coefficient between each cluster and the corresponding cluster in similar images, the similarity between the frame and the corresponding similar images, and the mean of the sharpness weights; and enhancing the frame based on the respiratory influence coefficients of the multiple clusters in each frame to obtain the enhanced image. This application can improve the image sharpness of lesion areas.

The present application relates to the technical field of digital twinning, and particularly provides a kind of based on digital twinning's intestinal microorganism dynamic detection method and system, method contains making different hydrophobicity microorganism in turn separate from magnetic control capture area and collect according to the order of separation, obtain the sequence of microbial components arranged according to the hydrophobicity gradient of microbial cell membrane;After temperature threshold sequencing, the phase transition characteristic vector corresponding to each component is generated, and the liquid crystal phase transition map of microbial community is formed by combining the phase transition characteristic vectors of all components;The liquid crystal phase transition map is input into the intestinal wall multilayer mechanical parameter program reconstructed in advance by ultrasonic elastography, and each microbial component is distributed to the matching intestinal axial region, and the functional zone separation twinning mapping of microbial community along the length direction of intestine is generated from the distribution relationship.The present application realizes the continuous analysis process from the physical and chemical separation of microorganism to the thermodynamic characterization of group, and then to the dynamic matching of intestinal mechanical environment.

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.