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57 results about "Reviewing Radiologist" patented technology

A radiologist that formally inspects and verifies diagnoses, clinical data, treatment plans, and grant or scientific proposals.

Medical imaging-quality assessment and improvement system (QAISys)

The business method known as QAISys (Quality Assessment and Improvement System) is a process that rates comprehensively and continually the quality of medical images as determined by the interpreting radiologist. The output of this system conveys feedback from the radiologist to the performing technologist and his / her supervisor. This feedback enables medical radiologists, technologists, and managers to bridge any communication gaps between themselves in respect to the quality and effectiveness of medical images. It permits management to assess and track image quality for an entire medical imaging department by modality, location, and / or shift, and for each individual technologist. The QAISys method reveals the nature of recurrent quality failures and highlights which exam types need to be improved. QAISys then indicates practical, cost-effective means of assessing and improving the overall medical images for future patients.
Owner:DALE RICHARD B

Deep residual network-based semantic mammary gland molybdenum target image lump segmentation method

The invention discloses a deep residual network-based semantic mammary gland molybdenum target image lump segmentation method. The method comprises the following steps of: labelling pixel categories of lumps and normal tissues corresponding to a collected mammary gland molybdenum target image so as to generate label images, and dividing the mammary gland molybdenum target image and the corresponding label images into training samples and test samples; preprocessing the training samples to form a training data set; constructing a deep residual network, and training the network by utilizing thetraining data set, so as to obtain a deep residual network training model; after a to-be-segmented mammary gland molybdenum target image lump is preprocessed, carrying out binary classification and post-processing on a pixel of the to-be-segmented mammary gland molybdenum target image by utilizing the deep residual network training model, and outputting lump segmentation image to realize semanticsegmentation of the mammary gland molybdenum target image lump. The method is capable of effectively improving the automatic and intelligent levels of mammary gland molybdenum target image lump segmentation, and can be applied to the technical field of assisting radiologists to carry out medical diagnosis.
Owner:ZHEJIANG CHINESE MEDICAL UNIVERSITY

Breast lump image feature extraction method based on edge neighborhood weighing

InactiveCN103425986AImprove classification accuracyOvercome the disadvantage of not including the local features of the tumor edgeCharacter and pattern recognitionScale-invariant feature transformImaging Feature
The invention discloses a breast lump image feature extraction method based on edge neighborhood weighing. The breast lump image feature extraction method mainly solves the problem that in the prior art, extracted features do not contain the edge neighborhood local features of a breast lump. The breast lump image feature extraction method comprises the steps of (1) inputting an image, (2) adjusting the size of the breast lump image which is input, (3) extracting a lump edge, (4) determining the number of inner indentation pixel points and the number of outer extension pixel points, (5) determining the inner region of a lump which undergoes inner indentation, (6) determining the inner region of the lump which undergoes outer extension, (7) obtaining an edge neighborhood image of the breast lump, (8) obtaining weighing values, (9) extracting scale invariant features, (10) extracting word bag features and (11) obtaining features of the breast lump image which undergoes edge neighborhood weighing. By means of the breast lump image feature extraction method, expression of the features of the breast lump image are more robust, the image features are expressed more effectively, the benign and malignant classification accuracy of lumps is improved, and therefore doctors in the radiology department can be assisted in conducting medical diagnosis.
Owner:XIDIAN UNIV

Mammary gland molybdenum target X-ray image block feature extraction method based on tower-shaped principal component analysis (PCA)

ActiveCN104182755AA lot of grayscale informationReasonable grayscale informationImage analysisCharacter and pattern recognitionPrincipal component analysisX-ray
The invention discloses a mammary gland molybdenum target X-ray image block feature extraction method based on tower-shaped principal component analysis (PCA). The mammary gland molybdenum target X-ray image block feature extraction method based on tower-shaped PCA mainly overcomes the defect that features extracted in the prior art do not contain the feature that the density of the middle of a lump is large while the density of the edge of the lump is small. The method comprises the following steps of (1) carrying out pretreatment, (2) constituting a tower-shaped structure, (3) obtaining a gray feature vector of each image layer, (4) training a feature space of the gray feature of each image layer, (5) obtaining principal component features of each image layer, and (6) obtaining mammary gland molybdenum target X-ray image block features based on tower-shaped PCA. According to the method, the mammary gland molybdenum target X-ray image block features can be represented more robustly, image features can be represented more effectively, the accurate rate of detection of a lump region in a mammary gland molybdenum target X-ray photography image is increased, and therefore radiologists are assisted to carry out clinical diagnosis.
Owner:XIDIAN UNIV

Multi-parameter MRI prostate cancer CAD method and system based on two kinds of classifiers

The invention discloses to a multi-parameter MRI prostate cancer CAD method and system based on two kinds of classifiers, relating to the medical image processing field. The multi-parameter MRI prostate cancer CAD method comprises candidate focus automatic detection and candidate focus computer aided diagnosis. The candidate focus automatic detection comprises steps of respectively performing pre-processing on three MRI sequences of each case: T2WI, DWI, ADC to make resolution ratios and sizes of the T2WI, the DWI, the ADC identical, wherein pixels of a same position basically correspond to a same part of a human body, and respectively extracting point characteristics on three kinds of MRI sequences of each case, and inputting the point characteristics into a focus detection classifier to obtain a candidate focus. The candidate focus computer aided diagnosis comprises steps of calculating regional characteristics of the candidate focus in three kinds MRI sequences of each case and inputting the regional characteristics into a focus diagnosis classifier to obtain a corresponding diagnosis result. The multi-parameter MRI prostate cancer CAD method and system based on two kinds of classifiers can provide a series of quantized indexes and a malignant probability value.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Cloud storage and medical image seamless joint system

The invention discloses a cloud storage and medical image seamless joint system. The system comprises a medical image information acquisition device, a radiology department server, an imaging center server, a front server, a storage gateway, a cloud storage, a radiologist workstation, a clinician workstation, and a tape backup device, wherein the medical image information acquisition device is used for sending acquired information to the radiology department server and the information is copied through the tape backup device, the radiology department server is connected with the imaging center server and used for sending data to an imaging center, the imaging center server is connected with the front server and used for sending the data to the front server; the front server is used for sending the data to the storage gateway, and then the data is stored in the cloud storage through the storage gateway.
Owner:JIAXING NO 1 HOSPITAL

Breast nodules auxiliary diagnosis method based on DSSD and system

The invention relates to the field of medical image technology, and particularly to a breast nodules auxiliary diagnosis method based on DSSD and a system. The system comprises a breast image workstation, a breast cloud diagnosis system and a breast diagnosis mobile terminal. The breast image workstation performs breast image acquisition. The breast cloud diagnosis system comprise training set anda testing set preprocessing, marking and neural network discriminating, wherein the training set and the testing set preprocessing comprises multi-scale image de-noising and enhancing. The method comprises the steps of acquiring a breast graph by the breast image workstation, performing discriminating through mainly using a DSSD neural network, and finally transmitting a result which is obtainedthrough processing of the breast cloud diagnosis system to the breast diagnosis mobile terminal. According to the method and the system, a computer-aided diagnosis (CAD) system based on deep learningis developed for aiming at the field of the medical image (unnatural image), thereby supplying a second opinion for diagnosis to a radiology department doctor, and more effectively assisting the doctor in performing diagnosis.
Owner:安徽磐众信息科技有限公司

Medical image efficient classification management method based on big data

The invention relates to a medical image efficient classification management method based on big data, and the method comprises the steps: carrying out the image standardization of a T2 weighted magnetic resonance image, and obtaining a standardized image; performing gaussian filtering on the standardized image; performing contrast stretching on the denoised image; extracting brightness features of the stretched image; carrying out histogram equalization on the stretched image to obtain an image with enhanced contrast; extracting texture features of the contrast-enhanced image through a gray level co-occurrence matrix; training and verifying the classification model through a support vector machine by adopting a one-leaving method; establishing a graphical user interface for human-computerinteraction. According to the invention, the classification precision of the classifier is improved and the time complexity of the algorithm is reduced through background removal; through two times of image enhancement, the texture of the image is more obvious, so that the classification precision is improved; the working efficiency of radiologists can be improved; different features are extracted for different stages, and image features of different stages are met.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

System and method to determine relevant prior radiology studies using pacs log files

A radiology workstation (10) includes a computer (12) connected to access radiology studies stored in an radiology studies archive (20) with at least one processor (22) programmed to operate the computer to: provide a user interface (24) for performing readings of radiology studies including: displaying images on a display (14) of a current radiology study being read; receiving user inputs via one or more user input devices (16) and operating on the user inputs to manipulate the display of images and to open and view past radiology studies during the reading and to receive a radiology report summarizing the reading and store the radiology report in the radiology studies archive; and recording a activity log of user inputs received via the one or more user input devices during readings of radiology studies. While providing the user interface for performing a reading by a radiologist of a current radiology study of a patient, tire at least one processor is Anther programmed to perform a relevant past radiology study recommendation process including: identifying at least one previously-read radiology study of the patient stored in the radiology studies archive as being relevant to the current radiology study of the patient using a radiologist-specific relevance identification criterion derived from content of the activity log recording the radiologist opening and viewing past radiology studies during readings performed by the radiologist; and displaying an indication of the at least one relevant previously-examined radiology study on the display.
Owner:KONINKLJIJKE PHILIPS NV

Medical Image Pre-Processing at the Scanner for Facilitating Joint Interpretation by Radiologists and Artificial Intelligence Algorithms

A method and system for medical image pre-processing at the medical image scanner that facilitates joint interpretation of the medical images by radiologists and artificial intelligence algorithms is disclosed. Raw medical image data is acquired by performing a medical image scan of a patient using a medical image scanner. Input data associated with the medical image scan of the patient and available downstream automated image analysis algorithms is acquired. A set of pre-processing algorithms to apply to the raw medical image data is selected based on the input data associated with the medical image scan of the patient and the available downstream automated image analysis algorithms using a trained machine learning based model. One or more medical images are generated from the raw medical image data by applying the selected set of pre-processing algorithms to the raw medical image data.
Owner:SIEMENS HEALTHCARE GMBH

Artificial intelligence engine for directed hypothesis generation and ranking

An artificial intelligence engine for directed hypothesis generation and ranking uses multiple heterogeneous knowledge graphs integrating disease-specific multi-omic data specific to a patient or cohort of patients. The engine also uses a knowledge graph representation of ‘what the world knows’ in the relevant bio-medical subspace. The engine applies a hypothesis generation module, a semantic search analysis component to allow fast acquiring and construction of cohorts, as well as aggregating, summarizing, visualizing and returning ranked multi-omic alterations in terms of clinical actionability and degree of surprise for individual samples and cohorts. The engine also applies a moderator module that ranks and filters hypotheses, where the most promising hypothesis can be presented to domain experts (e.g., physicians, oncologists, pathologists, radiologists and researchers) for feedback. The engine also uses a continuous integration module that iteratively refines and updates entities and relationships and their representations to yield higher quality of hypothesis generation over time.
Owner:TEMPUS LABS INC

Feature extraction method of mammography x-ray image block based on tower pca

ActiveCN104182755BA lot of grayscale informationReasonable grayscale informationImage analysisCharacter and pattern recognitionPrincipal component analysisX-ray
The invention discloses a mammary gland molybdenum target X-ray image block feature extraction method based on tower-shaped principal component analysis (PCA). The mammary gland molybdenum target X-ray image block feature extraction method based on tower-shaped PCA mainly overcomes the defect that features extracted in the prior art do not contain the feature that the density of the middle of a lump is large while the density of the edge of the lump is small. The method comprises the following steps of (1) carrying out pretreatment, (2) constituting a tower-shaped structure, (3) obtaining a gray feature vector of each image layer, (4) training a feature space of the gray feature of each image layer, (5) obtaining principal component features of each image layer, and (6) obtaining mammary gland molybdenum target X-ray image block features based on tower-shaped PCA. According to the method, the mammary gland molybdenum target X-ray image block features can be represented more robustly, image features can be represented more effectively, the accurate rate of detection of a lump region in a mammary gland molybdenum target X-ray photography image is increased, and therefore radiologists are assisted to carry out clinical diagnosis.
Owner:XIDIAN UNIV
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