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    PARTIALLY-GATED PET IMAGING
    1.
    发明申请
    PARTIALLY-GATED PET IMAGING 有权

    公开(公告)号：US20250012935A1

    公开(公告)日：2025-01-09

    申请号：US18886012

    申请日：2024-09-16

    Applicant: Siemens Medical Solutions USA, Inc.

    Inventor： Jicun Hu ,  Matthew Restivo ,  Inki Hong ,  Vladimir Panin ,  Frank Kehren ,  Michael E. Casey

    IPC: G01T1/29 ,  A61B6/00 ,  A61B6/03 ,  G06T11/00

    Abstract: Systems and methods to partially-gate PET data include acquisition of first data describing a plurality of coincidences detected during a scan of an object, each of the plurality of coincidences associated with a coincidence time and a line of response, determination of lines of response which pass through a region of the object, determination of time periods of motion of the region, modification of the first data to remove coincidences which are associated with the determined lines of response and which are associated with coincidence time during the determined time periods of motion of the region, reconstruction of an image of the object based on the modified first data, and display of the image.

    Patient display system for a medical imaging or radiotherapy apparatus
    2.
    发明授权
    Patient display system for a medical imaging or radiotherapy apparatus 有权

    公开(公告)号：US11375966B2

    公开(公告)日：2022-07-05

    申请号：US16949296

    申请日：2020-10-23

    Applicant: Siemens Medical Solutions USA, Inc. ,  The Trustees of the University of Pennsylvania

    Inventor： Ziad Burbar ,  Inki Hong ,  Stefan B. Siegel ,  Joel Karp

    IPC: A61B6/00 ,  A61B6/04

    Abstract: A medical imaging and/or radiotherapy apparatus incorporates a display for projecting a visible image to a patient lying on a patient table. A projector that projects the visible image moves in tandem with the patient table, so that it appears relatively motionless to the patient. In exemplary embodiments, the projector projects the visible image within a patient tunnel of the medical apparatus, including in some embodiments, an extended field of view medical imaging apparatus. In other exemplary embodiments, the projector projects the visible image on a screen above the patient table of a tunnel-less medical apparatus. The projector remains outside the imaging line of response of detectors within the imaging field or outside of the radiotherapy beam zone, to avoid potential degradation of the captured diagnostic image or degradation of the radiotherapy beam.

    PATIENT DISPLAY SYSTEM FOR A MEDICAL IMAGING OR RADIOTHERAPY APPARATUS
    4.
    发明申请
    PATIENT DISPLAY SYSTEM FOR A MEDICAL IMAGING OR RADIOTHERAPY APPARATUS 有权

    公开(公告)号：US20220125395A1

    公开(公告)日：2022-04-28

    申请号：US16949296

    申请日：2020-10-23

    Applicant: Siemens Medical Solutions USA, Inc. ,  The Trustees of the University of Pennsylvania

    Inventor： Ziad Burbar ,  Inki Hong ,  Stefan B. Siegel ,  Joel Karp

    IPC: A61B6/00 ,  A61B6/04

    Abstract: A medical imaging and/or radiotherapy apparatus incorporates a display for projecting a visible image to a patient lying on a patient table. A projector that projects the visible image moves in tandem with the patient table, so that it appears relatively motionless to the patient. In exemplary embodiments, the projector projects the visible image within a patient tunnel of the medical apparatus, including in some embodiments, an extended field of view medical imaging apparatus. In other exemplary embodiments, the projector projects the visible image on a screen above the patient table of a tunnel-less medical apparatus. The projector remains outside the imaging line of response of detectors within the imaging field or outside of the radiotherapy beam zone, to avoid potential degradation of the captured diagnostic image or degradation of the radiotherapy beam.

    Determination of confidence score for motion correction
    5.
    发明授权
    Determination of confidence score for motion correction 有权

    公开(公告)号：US11250575B2

    公开(公告)日：2022-02-15

    申请号：US16947543

    申请日：2020-08-06

    Applicant: Siemens Medical Solutions USA, Inc.

    Inventor： Inki Hong ,  Ziad Burbar ,  Stefan B. Siegel

    IPC: G06K9/00 ,  G06T7/215 ,  A61B6/00

    Abstract: A system and method include acquisition of a plurality of event data associated with an object, each of the plurality of event data associated with a position and a time, assigning of each event data to one of a plurality of time-based frames based on a time associated with the event data, each of the plurality of time-based frames associated with a respective time period, assigning of each event data to one of a plurality of motion-based frames based on a time associated with the event data, each of the plurality of motion-based frames associated with a respective time period associated with a respective motion state, determination of a confidence score based on the plurality of time-based frames of event data and on the plurality of motion-based frames of event data, and presentation of the confidence score and a control selectable to initiate motion-correction of the event data.

    MOTION SIGNAL DERIVED FROM IMAGING DATA
    6.
    发明申请
    MOTION SIGNAL DERIVED FROM IMAGING DATA 有权

    公开(公告)号：US20210106301A1

    公开(公告)日：2021-04-15

    申请号：US15733498

    申请日：2019-03-27

    Applicant: Siemens Medical Solutions USA, Inc.

    Inventor： Paul Schleyer ,  Inki Hong ,  Judson P. Jones

    IPC: A61B6/00 ,  A61B6/03

    Abstract: Embodiments provide a computer-implemented method of deriving a periodic motion signal from imaging data for continuous bed motion acquisition, including: acquiring a time series of three dimensional image volumes; estimating a first motion signal through a measurement of distribution of each three dimensional image volume; dividing the time-series of three dimensional image volumes into a plurality of axial sections overlapping each other by a predetermined amount; performing a spectral analysis on each axial section to locate a plurality of three dimensional image volumes which are subject to a periodic motion; performing a phase optimization on each axial section to obtain a three dimensional mask; estimating a second motion signal through the three dimensional mask and the time-series of three dimensional image volumes; and estimating a final motion signal based on the first motion signal and the second motion signal.

    Patient Handling System for a Medical Imaging System
    8.
    发明公开
    Patient Handling System for a Medical Imaging System 审中-公开

    公开(公告)号：US20230255573A1

    公开(公告)日：2023-08-17

    申请号：US18004183

    申请日：2020-11-13

    Applicant: Siemens Medical Solutions USA, Inc.

    Inventor： Ziad Burbar ,  Inki Hong ,  James L. Corbeil

    IPC: A61B6/04 ,  A61B6/03 ,  A61B6/00

    CPC classification number: A61B6/0407 ,  A61B6/035 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/0487

    Abstract: A patient handling system (PHS) for a medical imaging system having a tunnel that extends through at least one scanning portion of the system. The PHS includes a first moveable pedestal that supports a detachable first pallet that includes a first patient. The first pedestal moves the first pallet through the tunnel to enable scanning of the first patient. The PHS also includes a second moveable pedestal located at a tunnel exit. The second pedestal attaches to the first pallet as the first pallet moves through the tunnel and the first pedestal subsequently detaches from the first pallet. The second pedestal then moves away from the tunnel exit to remove the first pallet from the tunnel. A second patient to be scanned is simultaneously prepared for scanning on a second pallet as the first pallet is moved through the tunnel in order to increase patient throughput through system.

    A HELICAL PET ARCHITECTURE
    10.
    发明申请
    A HELICAL PET ARCHITECTURE 有权

    公开(公告)号：US20220291402A1

    公开(公告)日：2022-09-15

    申请号：US17632405

    申请日：2020-02-14

    Applicant: Siemens Medical Solutions USA, Inc.

    Inventor： Stefan B. Siegel ,  Ziad Burbar ,  Inki Hong

    IPC: G01T1/29 ,  A61B6/03 ,  A61B6/00

    Abstract: A PET imaging system includes a gantry having a patient tunnel and a first detector unit and a second detector unit housed inside the gantry, each including a plurality of detector elements in a helical arrangement around an axial axis of the imaging system. Each of the detector elements in the second detector unit is spaced apart from a corresponding detector element in the first detector unit by an axial gap. Each detector element has an axial position. Each of the first and second detector units has its detector elements arranged so that a set of the detector elements is positioned such that each detector element in the set is offset from an adjacent detector element in the detector unit such that a maximum difference between axial positions of detector elements in each detector unit is less than or equal to the axial gap.

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