Automated extraction of structured labels from medical text using deep convolutional networks and use thereof to train a computer vision model

    公开(公告)号:US11984206B2

    公开(公告)日:2024-05-14

    申请号:US16958544

    申请日:2018-02-16

    Applicant: GOOGLE LLC

    CPC classification number: G16H15/00 G06N3/08 G16H30/40

    Abstract: A method is provided for processing medical text and associated medical images. A natural language processor configured as a deep conventional neural network is trained on a first corpus of curated free-text, medical reports each of which having one or more structured labels assigned by an medical expert. The network is trained to learn to read additional free-text medical reports and produce predicted structured labels. The natural language processor is applied to a second corpus of free-text medical reports that are associated with medical images. The natural language processor generates structured labels for the associated medical images. A computer vision model is trained using the medical images and the structured labels generated. The computer vision model can thereafter assign a structured label to a further input medical image. In one example, the medical images are chest X-rays.

    Similar image search for radiology

    公开(公告)号:US11126649B2

    公开(公告)日:2021-09-21

    申请号:US16032276

    申请日:2018-07-11

    Applicant: Google LLC

    Abstract: A computer-implemented system is described for identifying and retrieving similar radiology images to a query image. The system includes one or more fetchers receiving the query image and retrieving a set of candidate similar radiology images from a data store. One or more scorers receive the query image and the set of candidate similar radiology images and generate a similarity score between the query image and each candidate image. A pooler receives the similarity scores from the one or more scorers, ranks the candidate images, and returns a list of the candidate images reflecting the ranking. The scorers implement a modelling technique to generate the similarity score capturing a plurality of similarity attributes of the query image and the set of candidate similar radiology images and annotations associated therewith. For example, the similarity attributes could be patient, diagnostic and/or visual similarity, and the modelling techniques could be triplet loss, classification loss, regression loss and object detection loss.

    Similar Image Search for Radiology
    3.
    发明申请

    公开(公告)号:US20200019617A1

    公开(公告)日:2020-01-16

    申请号:US16032276

    申请日:2018-07-11

    Applicant: Google LLC

    Abstract: A computer-implemented system is described for identifying and retrieving similar radiology images to a query image. The system includes one or more fetchers receiving the query image and retrieving a set of candidate similar radiology images from a data store. One or more scorers receive the query image and the set of candidate similar radiology images and generate a similarity score between the query image and each candidate image. A pooler receives the similarity scores from the one or more scorers, ranks the candidate images, and returns a list of the candidate images reflecting the ranking. The scorers implement a modelling technique to generate the similarity score capturing a plurality of similarity attributes of the query image and the set of candidate similar radiology images and annotations associated therewith. For example, the similarity attributes could be patient, diagnostic and/or visual similarity, and the modelling techniques could be triplet loss, classification loss, regression loss and object detection loss.

    Automated Maternal and Prenatal Health Diagnostics from Ultrasound Blind Sweep Video Sequences

    公开(公告)号:US20220354466A1

    公开(公告)日:2022-11-10

    申请号:US17763120

    申请日:2020-07-08

    Applicant: Google LLC

    Abstract: A system is described for generating diagnostic information from a video sequence of ultrasound images acquired in “blind sweeps”, i.e., without operator seeing ultrasound images as they are acquired. We disclose two different types of machine learning systems for predicting diagnostic information: a “Temporal Accumulation” system and a “3-D Modeling Component” system. These machine learning systems could be implemented in several possible ways: using just one or the other of them in any given implementation, or using both of them in combination. We also disclose a computing system which implements (a) an image selection system including at least one machine learning model trained to identify clinically suitable images from the sequence of ultrasound images and (b) an image diagnosis/measurement system including of one or more machine learning models, configured to obtain the clinically suitable images identified by the image selection system and further process such images to predict health states.

    Instrumented Ultrasound Probes For Machine-Learning Generated Real-Time Sonographer Feedback

    公开(公告)号:US20220000448A1

    公开(公告)日:2022-01-06

    申请号:US17291951

    申请日:2019-10-15

    Applicant: Google LLC

    Abstract: A system is described for conducting an ultrasound scan on a human subject. The system includes an ultrasound probe generating ultrasound image data and provisioned with one or more position sensors generating real time position and orientation data as to the position of the ultrasound probe and orientation in three-dimensional space during use of the probe; one or more machine learning models trained to correlate ultrasound images with probe position and orientation, wherein the one or more machine learning models receive images generated from the ultrasound probe; a feedback generator generating feedback data based on the current probe position determined by the position sensors; and a feedback display receiving the feedback data providing real-time suggestions to the user of the ultrasound probe for adjusting the probe position, orientation, pressure and/or other parameters of the ultrasound probe to improve the quality of the images generated from the ultrasound probe.

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