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    Magnetic resonance imaging apparatus
    2.
    发明授权
    Magnetic resonance imaging apparatus 有权

    公开(公告)号：US12232859B2

    公开(公告)日：2025-02-25

    申请号：US18189517

    申请日：2023-03-24

    Applicant: CANON MEDICAL SYSTEMS CORPORATION

    Inventor： Sojuro Kato

    IPC: G01R33/36 ,  A61B5/00 ,  A61B5/055

    Abstract: A magnetic resonance imaging apparatus of an embodiment includes a transmission coil, a reception coil, and first processing circuitry. The transmission coil radiates RF pulses to a subject. The reception coil receives magnetic resonance signals from the subject. The first processing circuitry controls the transmission coil and the reception coil. The reception coil includes a clock receptor, a phase synchronizer, and second processing circuitry. The clock receptor receives a clock signal wirelessly transmitted by the first processing circuitry. The phase synchronizer performs phase synchronization with the clock signal. The second processing circuitry controls the phase synchronizer. The second processing circuitry switches operating states of the phase synchronizer in accordance with a radiation timing of the RF pulses.

    Method for early prediction of neurodegenerative decline
    3.
    发明授权
    Method for early prediction of neurodegenerative decline 有权

    公开(公告)号：US12232843B2

    公开(公告)日：2025-02-25

    申请号：US16977980

    申请日：2019-03-06

    Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) ,  UNIVERSITE DE LILLE ,  CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE LILLE

    Inventor： Nacim Betrouni ,  Régis Bordet

    IPC: A61B5/00 ,  A61B5/055 ,  G06T7/00 ,  G06T7/10 ,  G06T7/40 ,  G16H30/40 ,  G16H50/20 ,  G16H50/30

    Abstract: The present invention relates to a method for predicting neurodegenerative decline and/or its severity for a patient, especially of cognitive impairment (CI). Strokes and Parkinson's disease are frequently associated with occurrence of long-term cognitive impairment or dementia with still incompletely resolved mechanisms. The discovery of diagnostic and predictive biomarkers thus remains a major challenge. The method of the invention uses radiomics corresponding to texture features extracted from a plurality of previously-acquired medical brain images and correlated with previously-acquired clinical and/or biological data. A classifier is trained beforehand for learning these radiomics, and then operated on radiomics computed from at least one brain image of a patient to generate a score representative of its risks of neurodegenerative decline. By applying this method on a cohort of 160 MCI and non-MCI patients, the inventors show that MCI patients could be early predicted with a mean accuracy of 88%. In the same way, the method was able to discriminate very early stages of cognitive decline in a Parkinson's disease population of 100 patients.

    MRI SYSTEM
    4.
    发明申请
    MRI SYSTEM 有权

    公开(公告)号：US20250060439A1

    公开(公告)日：2025-02-20

    申请号：US18800203

    申请日：2024-08-12

    Applicant: CANON MEDICAL SYSTEMS CORPORATION

    Inventor： Takehiro SHIBUYA ,  Sadanori TOMIHA ,  Yoshitomo SAKAKURA ,  Hiromi KAWAMOTO ,  Yuuzo KAMIGUCHI ,  Michiru KAJIWARA

    IPC: G01R33/421 ,  A61B5/055 ,  G01R33/34 ,  G01R33/3875

    Abstract: An MRI system includes a static magnetic field magnet configured to determine an MR frequency for imaging and generate a first static magnetic field be applied to an object during imaging; a pre-polarizing magnet configured to polarize nuclear spin of the object prior to imaging of the object and generate a second static magnetic field, application of which is stopped during imaging of the object; at least one first shield configured to block a leakage magnetic field of the first static magnetic field, the first shield being provided in a region opposite to an imaging region of the object with respect to the static magnetic field magnet; and at least one second shield configured to block a leakage magnetic field of the second static magnetic field, the second shield being provided in a region opposite to the imaging region with respect to the pre-polarizing magnet.

    Positioning of a patient carrier
    6.
    发明授权
    Positioning of a patient carrier 有权

    公开(公告)号：US12229984B2

    公开(公告)日：2025-02-18

    申请号：US17289926

    申请日：2019-10-15

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Sascha Krueger ,  Julien Senegas

    IPC: G06K9/00 ,  A61B5/00 ,  A61B5/055 ,  G06T7/73 ,  A61B6/04

    Abstract: A positioning control system for a patient carrier comprises a camera system to acquire image information from a detection range. An analysis module configured to access the acquired image information from the detection range and compute operator-activity within the detection range from the acquired image information. The operator-activity representing a spatio-temporal pattern of activities of an operator in the detection range. From the operator activity compute a location of a target anatomy that is selected to be imaged. The location of the target anatomy that is to be imaged can be derived from the spatio-temporal activity pattern of the operator during the preparation of the patient to be examined.

    AUTOMATIC SLICE SELECTION IN MEDICAL IMAGING
    7.
    发明申请
    AUTOMATIC SLICE SELECTION IN MEDICAL IMAGING 有权

    公开(公告)号：US20250054145A1

    公开(公告)日：2025-02-13

    申请号：US18928286

    申请日：2024-10-28

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Ravindra Balasaheb PATIL ,  Rithesh SREENIVASAN ,  Krishnamoorthy PALANISAMY ,  Nagaraju BUSSA

    IPC: G06T7/00 ,  A61B1/00 ,  A61B5/055 ,  A61B6/00 ,  A61B6/03 ,  A61B8/08 ,  G06F18/2431 ,  G06N3/08 ,  G16H30/20 ,  G16H30/40 ,  G16H40/20 ,  G16H40/67 ,  G16H50/20

    Abstract: A medical imaging system (100, 300, 400, 700) includes a processor and memory with instructions executable by the processor to receive (200) three-dimensional medical image data (122) comprising multiple slices, receive (202) an imaging modality (124) of the three-dimensional medical image data, receive (204) an anatomical view classification (126) of the three-dimensional medical image data, select (206) a chosen abnormality detection module (130) from a set of abnormality detection modules (128) using the imaging modality and the anatomical view classification, wherein at least a portion of the abnormality detection modules is a convolution neural network trained for identifying if the at least a portion of the multiple slices as either normal or abnormal, classify (208) the at least a portion of the multiple slices as normal or abnormal using the abnormality detection module, and choose (210) a set of selected slices (136) from the multiple slices according to a predetermined selection criteria (134) if a predetermined number of the multiple slices are classified as abnormal.

    AI-POWERED HISTOLOGICAL FINGERPRINTING
    9.
    发明申请
    AI-POWERED HISTOLOGICAL FINGERPRINTING 有权

    公开(公告)号：US20250044390A1

    公开(公告)日：2025-02-06

    申请号：US18364498

    申请日：2023-08-03

    Applicant: Siemens Healthineers AG

    Inventor： Mahmoud Mostapha ,  Dorin Comaniciu ,  Mariappan S. Nadar

    IPC: G01R33/56 ,  A61B5/055

    Abstract: Systems and methods for AI-powered histological fingerprinting in magnetic resonance imaging. MR signal data of an object is acquired using a high sensitivity scanner. Ground truth tissue microstructure data is acquired for the object. A forward model is learned using machine learning. The forward model is used to generate a dictionary or to train a model to map the signals to the histological parameters including the tissue microstructure of a scanner object. A signal-to-signal translation model is also provided to provide signals with improved sensitivity.

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