GROUP INFORMATION GUIDED SMOOTH INDEPENDENT COMPONENT ANALYSIS METHOD FOR BRAIN FUNCTIONAL NETWORK ANALYSIS

    公开(公告)号:US20240159849A1

    公开(公告)日:2024-05-16

    申请号:US18387862

    申请日:2023-11-08

    Inventor: Yuhui DU

    CPC classification number: G01R33/5608 G06V10/32 G06V10/7715 G06V2201/031

    Abstract: A group information guided smooth independent component analysis method for brain functional network analysis is provided. The method includes: performing independent component analysis on multi-subject fMRI data to obtain independent components at the group level; constructing multi-objective function that reflects independence of component of individual subject, correspondence of component across different subjects, and spatial smoothness of component based on iterative reference component that are initialized using group-level independent component, iterative voxel-level features that are computed based on reference component, and individual subject's fMRI data; iteratively optimizing multi-objective function to estimate independent components; and obtaining brain functional networks and calculating time courses of brain functional networks for individual subject.

    Systems and methods for automatic detection of anatomical sites from tomographic images

    公开(公告)号:US11948389B2

    公开(公告)日:2024-04-02

    申请号:US17693272

    申请日:2022-03-11

    Abstract: The present disclosure relates to a method and apparatus for automatic detection of anatomical sites from tomographic images. The method includes: receiving 3D images obtained by a CT or an MRI system, transforming the images to the DICOM standard patient-based coordinate system, pre-processing the images to have normalized intensity values based on their modality, performing body segmentation, cropping the images to remove excess areas outside the body, and detecting different anatomical sites including head and neck, thorax, abdomen, male pelvis and female pelvis, wherein the step of detecting different anatomical sites comprises: performing slice-level analyses on 2D axial slices to detect the head and neck region using dimensional measurement thresholds based on human anatomy, calculating lung ratios on axial slices to find if lungs are present, determining whether 3D images with lungs present span over the thoracic region, abdomen region, or both, conducting 2D connectivity analyses on axial slices to detect the pelvis region if two separate leg regions are found and differentiating detected pelvis regions as either male pelvis or female pelvis regions based on human anatomy.

    Cranial CT-based grading method and system

    公开(公告)号:US11935283B2

    公开(公告)日:2024-03-19

    申请号:US17299685

    申请日:2019-11-14

    Abstract: Disclosed are a cranial CT-based grading method and a corresponding system, which relate to the field of medical imaging. The cranial CT-based grading method as disclosed solves the problems of relatively great subjective disparities and poor operability in eye-balling ASPECTS assessment. The grading method includes: determining frames where target image slices are located from to-be-processed multi-frame cranial CT data; extracting target areas; performing infarct judgment on each target area included in the target areas to output an infarct judgment outcome regarding the target area; and outputting a grading outcome based on infarct judgment outcomes regarding all target areas. The grading method and system as disclosed may eliminate or mitigate the diagnosis disparities caused by human factors and imaging deviations due to different imaging devices, and shorten the time taken by human observation, consideration, and bared-eye grading, thereby serving as a computer-aided method to provide reference for medical studies on stoke.

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