16 results about "Palpable mass" patented technology

The invention belongs to the technical field of medical image intelligent diagnosis, and provides a breast cancer focus benign and malignant discrimination method based on a gated multi-expert mechanism. The method comprises the following steps: firstly, carrying out standardization and semantic preprocessing on a mammary gland X-ray image, a BI-RADS imaging report and structured clinical data, embedding age, mammary gland density and focus position information into a text template in a natural language form, and realizing unified expression of multi-modal input; secondly, extracting image features by utilizing a ResNet network and a simplified CLIP model, obtaining a text semantic vector by adopting a Bio-ClinicalBERT model, and establishing two sub-paths of a lump expert and a calcification expert in a Transform structure; further, an expert weight is dynamically generated through a gating routing mechanism, and soft routing fusion is executed; and finally, outputting benign and malignant results of the breast cancer focus by the binary classification module. According to the method, deep fusion and dynamic collaboration of the mammary gland X-ray image, the BI-RADS text and the clinical information are realized, and the accuracy and interpretability of breast cancer discrimination can be remarkably improved.

The invention provides a breast lump segmentation method based on channel-guided double-pooling multi-scale space attention, and aims to solve the problems of small area, low contrast, fuzzy boundary and the like of breast lumps in an X-ray image, the network extracts full-view image features and compresses space dimensions through a deep residual encoder; and realizing fusion of low-level details and high-level semantic features in the decoder by means of jump connection. A double-pooling gating mechanism is built in the decoder, channel guide weights are generated in parallel through global average pooling and maximum pooling, lesion significant features are screened in a self-adaptive mode, and redundant backgrounds are restrained; the multi-scale space attention module captures multi-scale space information through multi-branch large-kernel separable convolution, generates a space attention graph, combines the space attention graph with channel weights element by element, and accurately focuses a lesion area and a boundary. Experiments show that the Dice coefficients of the method on INbreast, CBIS-DDSM and private In-home data sets respectively reach 90.94%, 80.60% and 84.50%, the method is superior to a mainstream method, the segmentation precision and generalization ability are improved, and reliable support is provided for early screening and computer-aided diagnosis of breast cancer.

The invention relates to the technical field of breast ultrasonic image recognition, in particular to an ultrasonic puncture part anomaly detection method and system based on image processing. Acquiring all similar pixel points of the reference pixel points in the breast ultrasound image of the patient; and calculating a spatial coherence coefficient according to the distance distribution between the reference point and each similar point, the number of the similar points and the regional distribution characteristics. And identifying a high-echo region in combination with gray level distribution of the pixel points. For each high echo region, detecting a mark inflection point and a non-mark inflection point; calculating an abnormal extension coefficient according to the position distribution of the mark points and the non-mark points; and obtaining an abnormal factor, and screening abnormal inflection points. The clustering abnormal inflection point forms an abnormal clustering cluster based on an abnormal extension coefficient and an abnormal factor; and performing contour fitting on the abnormal inflection points in each cluster to obtain a suspected lump area. According to the method, the suspected lump area can be accurately identified, so that the detection efficiency and accuracy of related personnel are improved.

This invention discloses a lightweight automatic MRI segmentation method for breast masses based on MobileSAM. The method inputs the breast MRI image to be detected into a breast mass MRI image segmentation model, outputting the localization and prediction results of the breast mass. The model uses the MobileSAM lightweight image coding network as its backbone, and introduces an adapter to achieve adaptation and efficient fine-tuning of the breast image domain. A separable hollow pyramid fusion module is designed in the decoding branch, employing multi-branch deep separable hollow convolution to aggregate multi-scale context, enhancing the feature discrimination of small masses and blurred boundaries. Furthermore, a coordinate-channel-space joint attention gating module is introduced, using decoded semantics as a guide to filter skip features, strengthening the spatial location and detail reconstruction of the mass boundary. This invention achieves end-to-end automatic segmentation without interactive prompts, significantly improving the accuracy and robustness of breast MRI mass segmentation while maintaining lightweight design and low training costs.

This invention discloses a method for constructing a lung weight index based on chest CT images and its application. The method includes: Step 1, low-dose CT image acquisition and preprocessing; Step 2, automatic segmentation of the lung and lung lobes; Step 3, calculation of the average density of lung lobes and conversion to physical density; Step 4, calculation of lung lobe volume; Step 5, calculation of lung lobe weight and whole lung weight; Step 6, construction of the lung weight index; Step 7, risk assessment based on the lung weight index. This method can be applied to practical scenarios such as lung cancer screening, health checkups, and image-assisted diagnosis. This invention comprehensively reflects the state of lung tissue, blood vessels, and interstitium through the lung weight index, providing a more holistic quantitative description. Furthermore, it does not require nodule detection as a necessary prerequisite, making it suitable for individuals with few nodules, small volume, or those who have not yet formed a definite mass, thus better meeting the practical needs of early lung cancer screening.

A method to form images of internal parts of objects that are of such a nature that images are smeared out due to scattering. The method consists in using isolated beams of radiation along specific, chosen directions, then separating radiation that have not suffered scattering events, from the radiation that have suffered scattering events. The directions may be fixed either by having a multiplicity of radiation emitters along several directions or by moving one or more radiation emitter, or a combination of these. Collimators may also be used to select the direction of radiation propagation. The invention also discloses transparent windows pressed against the object, which serves to keep the incident radiation along a known direction. The radiation that suffered scattering may be also used to make a separate images of the internal parts of the object.

The invention discloses a method and a system for distinguishing benign and malignant ovarian lumps based on RegNet of a vaginal ultrasound image in combination with triple ROI constraints. According to the method, RegNetY-032 is adopted as a backbone network, an intelligent group level processing strategy and a four-level enhancement mechanism are combined, and it is ensured that a model focuses on ROI through triple constraints of input level ROI mask, feature level ROI constraint and ROI outer weight penalty loss. The device domain self-adaption technology based on the gradient inversion layer is further achieved, and the problem of imaging difference between different ultrasonic devices is effectively solved. According to the system, multi-angle image fusion is carried out by adopting a self-attention mechanism, the area of a subject under a working characteristic curve ROC in external verification reaches 0.992, the accuracy reaches 95.9%, and the system has good cross-equipment generalization ability and clinical application value.

It would be advantageous with the close quarters in breast procedure rooms to create a Gamma Probe system incorporating multi modalities, sensitivities, and multiple ranges for utilization in breast intervention procedures for the diagnosis and verification for breast cancer. Systems for specimen radiography assist radiologists and surgeons in the detection and classification of abnormal lesions in medical images gleaned from breast biopsies / lumpectomies and a Gamma Probe system with a sensor to detect radioactive, metallic / magnet, or RFID waves to help locate a lump or abnormality which were placed by an Interventional Radiologist. Radio guided surgery (RGS) uses gamma probes to localize radioactive targets. The three common RGS radioisotopes: technetium-99m (99mTc), indium-111 (111In), and iodine-125 (125I). The aspects of the disclosed embodiments pertain to a gamma probe that is able to simultaneously detect 2-3 isotopes automatically without actuating a physical switch.

The application discloses a breast lump detection system based on multi-view images, comprising: a data import module for loading multi-view images of a breast and pre-processing data; a feature extraction module for extracting image features of a main view and an auxiliary view; a region extraction module for obtaining a candidate region of a lump in the main view and ROI features, a Patch position and Patch features in the auxiliary view; an information fusion module for fusing the ROI and the Patch by weighted fusion to obtain enhanced ROI visual features; and a lump detection module for classifying and position regression according to the enhanced ROI visual features to obtain a lump detection result of the main view. The application simulates the thinking of a doctor analyzing multi-view images, constructs a lump detection system based on multi-view images, effectively fuses the information of multiple views, and improves the detection rate of breast lumps and reduces the false positive rate.

The invention discloses a sampling device for breast tumor screening, which is applied to the field of sampling instruments, and adopts double ultrasonic probes which are vertically distributed to detect a lump, a horizontally arranged annular ultrasonic probe to detect the position of the lump, and a vertically arranged rectangular ultrasonic probe to detect the depth of the lump. Compared with the arrangement of a single probe in the prior art, the annular ultrasonic probe and the rectangular ultrasonic probe achieve three-dimensional detection of the lumps, so that accurate positioning of the lumps is achieved, puncture deviation, improper puncture and even penetration of the lumps are avoided, the multi-degree-of-freedom mechanical arm and the Y-shaped support are used for supporting the biopsy needle body, and the biopsy efficiency is improved. Puncture errors caused by handheld operation are avoided, the success rate of one-time puncture is effectively improved, the needle core of the biopsy needle body is magnetized, the needle core is detected through a magnetic detector, it can be ensured that the needle core punctures the middle position of a lump, and sampling failure caused by penetrating through the lump is prevented.

The utility model provides an ultrasonic probe fixing device which comprises a clamping seat, a tail stabilizing frame and a probe stabilizing ring, the clamping seat is arched, the tail stabilizing frame is detachably arranged on the side face of the upper end of the clamping seat, and the probe stabilizing ring is fixed with the tail stabilizing frame and points to the arched space of the clamping seat. The inner diameter of the probe stabilizing ring is matched with the size of the holding end of an ultrasonic probe, a wire passing groove allowing an ultrasonic probe signal wire to pass through is formed in the probe stabilizing ring, an inflation soft bag laid along the curve of the clamping seat is fixed to the bottom end of the clamping seat, and an inflation opening of the inflation soft bag is located in the outer side of the clamping seat. The clamping seat is placed on part of the breast, and the probe stabilizing ring is used for limiting the holding end of the ultrasonic probe, so that a medical worker can hold the clamping seat conveniently, the holding end of the ultrasonic probe is effectively prevented from swinging greatly to drive the detection end to swing, the precision of a detection result is improved, and a lump in a local area of the breast can be fixed; and movement and displacement caused by operation of breast tumors are reduced.

The invention provides a breast lump resection auxiliary device, and relates to the technical field of medical auxiliary instruments, the breast lump resection auxiliary device comprises a palm plate, two racks are slidably connected in the palm plate, a gear is engaged between the racks, and guide rods are slidably connected to the ends, away from the gear, of the two racks; one end of the front side of each guide rod is fixedly connected with an opening assembly, the sides, facing each other, of the guide rods are rotationally connected with push-pull rods, the other ends of the push-pull rods are jointly rotationally connected with a connecting plate, the upper end of the connecting plate is fixedly connected with a second finger ring, and the distance between the supporting plate and the palm plate can be adjusted through the two finger rings; the distance between the palm of a doctor and an operation incision is adjusted, so that the doctor can adjust the bending state of the fingers, the opening distance between the two supporting plates can be adjusted only by using the fingers, and the operation is very convenient.

The present application relates to the technical field of medical teaching aids, in particular to a breast cancer pathological demonstration teaching aid, which comprises a base and two models rotating on the base, the two models are symmetrically designed, the two models are folded to form a chest model, and the two models can be installed and adjusted with internal tissue devices when unfolded; a functional inner cavity is formed in the inside of the model, an assembly plate is installed in the functional inner cavity, a capsule is installed on the assembly plate, the capsule is a semi-elliptical shell, the capsule is hollow, and a reaction medium capable of hardening or softening is designed in the capsule; a variable assembly, the reaction medium can be driven to be solid or liquid by the variable assembly to simulate malignant or benign tumors, and the present application can simulate palpation of the activity, adhesion, hardness and size of the lump.

A method applied to an apparatus for multi-view mammography mass identification includes receiving a main image, a first auxiliary image, and a second auxiliary image. The main image and the first auxiliary image are images of one breast of a person, and the second auxiliary image is an image of the other breast of a person. The method further includes detecting nipple location based on the main image and the first auxiliary image; generating a first probability map of the main image based on the main image, the first auxiliary image, and the nipple location; generating a second probability map of the main image based on the main image, the second auxiliary image, and the nipple location; and generating and outputting a fused probability map based on the first and second probability maps.

The utility model provides a nail-shaped lingual cyst positioning device and a nail-shaped lingual cyst positioning assembly. The nail-shaped lingual cyst positioning device comprises a tailorable hose and a developing agent injection part, wherein the developing agent injection part and the tailorable hose are of a detachable structure; two end parts of the developer injection part are provided with limiting bulge structures; the diameter of the limiting protrusion structure is larger than that of the tailorable hose. The developer injection member is also provided with a developer injection part. The device is simple in structure, deformable, convenient to use and capable of being effectively applied to relation identification of lumps and thyroid tissues.