3-D MEASUREMENTS GRID TOOL FOR X-RAY IMAGES
    2.
    发明公开

    公开(公告)号:US20230147764A1

    公开(公告)日:2023-05-11

    申请号:US17912836

    申请日:2021-03-15

    CPC classification number: A61B6/4441 A61B6/461 A61B6/52

    Abstract: Method of calculating a scaled virtual grid for x-ray projection images, comprising providing at least a first and a second co-registered x-ray projection image Ij—j=1, 2, . . . of a desired anatomy of a patient (step S1), defining two points P1 and P2 of the desired anatomy in 3-D space and determining 3-D coordinates of the two points P1 and P2 thereby using the x-ray projection images (step S2), calculating the scaled virtual grid based on the determined 3-D coordinates of the two points P1 and P2 (step S3), and projecting and displaying the calculated grid to a user on at least one of the first and the second co-registered x-ray projection image (step S4).

    PASSIVE-ULTRASOUND-SENSOR-BASED INITIALIZATION FOR IMAGE-BASED DEVICE SEGMENTATION

    公开(公告)号:US20220218302A1

    公开(公告)日:2022-07-14

    申请号:US17614697

    申请日:2020-05-19

    Abstract: A controller (220) for determining a shape of an interventional medical device in an interventional medical procedure based on a location of the interventional medical device includes a memory (221) that stores instructions and a processor (222) that executes the instructions. The instructions cause a system (200) that includes the controller (220) to implement a process that includes obtaining (S320) the location of the interventional medical device (201) and obtaining (S330) imagery of a volume that includes the interventional medical device. The process also includes applying (S340), based on the location of the interventional medical device (201), image processing to the imagery to identify the interventional medical device (201) including the shape of the interventional medical device (201). The process further includes (S350) segmenting the interventional medical device (201) to obtain a segmented representation of the interventional medical device (201). The segmented representation of the interventional medical device (201) is overlaid (S360) on the imagery.

    ULTRASOUND-BASED DEVICE LOCALIZATION

    公开(公告)号:US20220273263A1

    公开(公告)日:2022-09-01

    申请号:US17634752

    申请日:2020-08-12

    Abstract: A system for localizing a three-dimensional field of view of a beamforming ultrasound imaging probe based on a position indicator disposed within said field of view. The beamforming ultrasound imaging probe transmits and receives ultrasound signals within a three-dimensional field of view comprising a plurality of predetermined sub-volumes, each sub-volume being defined by a two dimensional array of beams. A controller causes the beamforming ultrasound imaging probe to scan the sub-volumes sequentially by transmitting and receiving ultrasound signals corresponding to each beam. A tracking system determines a position of the position indicator within the three-dimensional field of view; and determines a sub-volume in which the position indicator is located. The controller causes the beamforming ultrasound imaging probe to provide a localized field of view including the position of the position indicator by constraining the transmitting and receiving of ultrasound signals to a portion of the sub-volume in which the position indicator is located.

    REGISTERING OPTICAL SHAPE SENSING DEVICE WITH THREE-DIMENSIONAL REPRESENTATION OF REGION OF INTEREST

    公开(公告)号:US20220079683A1

    公开(公告)日:2022-03-17

    申请号:US15734023

    申请日:2019-06-24

    Abstract: Systems and methods are provided for registering a shape sensing device, such as an optical shape sensing (OSS) device, with a previously obtained three-dimensional (3D) representation of a region of interest, the shape sensing device including an outer body for maneuvering through a passage in the region of interest and a force sensing region integrated with the outer body. The method determines multiple points at which an end of the outer body contacts a surface of an object in the region of interest, based on forces exerted on the end when contacting the surface and detected by the force sensing region; and registering the determined points with points in the 3D representation of the region of interest so that the registered points are in a common space.

    MARKER REGISTRATION CORRECTION BY VIRTUAL MODEL MANIPULATION

    公开(公告)号:US20220015735A1

    公开(公告)日:2022-01-20

    申请号:US17407014

    申请日:2021-08-19

    Abstract: Various embodiments for X-ray imaging system employs a C-arm registration controller (830) for controlling a registration of a C-arm (60) to an X-ray marker (800) based on a generation by the C-arm (60) of an X-ray image (820) illustrative of the X-ray marker (800). The system further employs a registration confirmation controller (840) for controlling an interactive overlay display of a virtual confirmation marker (801) onto a display of the X-ray image (820) based on the registration of the C-arm (60) to the X-ray marker (800), and for controlling a misalignment correction of the interactive overlay display of the virtual confirmation marker (801) relative to the X-ray marker (800) as illustrated in the X-ray image (820) responsive to an operator interface with the interactive overlay display of the virtual confirmation marker (801). The C-arm registration controller (830) adjusts the registration of the C-arm (60) to the X-ray marker (800) based on the misalignment correction.

    INTERVENTIONAL MEDICAL DEVICE TRACKING
    7.
    发明公开

    公开(公告)号:US20230329800A1

    公开(公告)日:2023-10-19

    申请号:US18026936

    申请日:2021-09-18

    CPC classification number: A61B34/20 A61B2034/2061 A61B2090/376

    Abstract: A system for tracking location of an interventional medical device (01) includes an interface (193) and a controller (190). The interface (193) interfaces the system to an optical shape sensing device (102) which has a shape that conforms to a shape of the interventional medical device (01). The controller (190) includes a memory (191) that stores instructions and a processor (192) that executes the instructions. The instructions cause the system to identify a shape of the optical shape sensing device (102) using optical shape sensing signals received from the optical shape sensing device (102) via the interface (193), and identify a shape of the interventional medical device (01) in a first coordinate space of a first imaging system that images the interventional medical device (01) in a first imaging mode. The instructions also cause the system to register the interventional medical device (01) to the first coordinate space.

    INTERVENTIONAL MEDICAL DEVICE TRACKING
    8.
    发明公开

    公开(公告)号:US20230255695A1

    公开(公告)日:2023-08-17

    申请号:US18026949

    申请日:2021-09-18

    CPC classification number: A61B34/20 A61B2034/2061 A61B2090/376

    Abstract: A system includes an interface (193) to an optical shape sensing device (102) with a shape conforming to a shape of an interventional medical device (01). The system also includes a controller (190) with a memory (191) that stores instructions and a processor (192) that executes the instructions. The instructions cause the system to identify a shape of the optical shape sensing device (102) using optical shape sensing signals received via the interface (193), identify the interventional medical device (01) in disparate coordinate spaces of imaging systems that image the interventional medical device (01) in disparate imaging modes, and register the coordinate spaces to each other and to the interventional medical device (01). The instructions also cause the system to obtain a segmented representation (401) of the interventional medical device (01), and re-register the interventional medical device (01) to one of the coordinate space based on registering the interventional medical device (01) to another of the coordinate spaces using the segmented representation (401).

    X-RAY RING MARKERS FOR X-RAY CALIBRATION

    公开(公告)号:US20220087633A1

    公开(公告)日:2022-03-24

    申请号:US17423921

    申请日:2020-03-25

    Abstract: Various embodiments of the present disclosure include a C-arm registration system employing a controller (70) for registering a C-arm (60) to a X-ray ring marker (20). The X-ray ring marker (20) includes a coaxial construction of a chirp ring (40) and a centric ring (50) on an annular base (30). In operation, the controller (70) acquires a baseline X-ray image illustrative of the X-ray ring marker (20) within a baseline X-ray projection by the C-arm (60) at a baseline imaging pose, derives baseline position parameters of the X-ray ring marker (20) within the baseline X-ray projection as a function of an illustration of the centric ring (50) within the baseline X-ray image, and derives a baseline twist parameter of the X-ray ring marker (20) within the baseline X-ray projection as a function of the baseline position parameters and of an illustration of the chirp ring (40) within the baseline X-ray image.

    X-RAY CALIBRATION FOR DISPLAY OVERLAYS ONTO X-RAY IMAGES

    公开(公告)号:US20210369230A1

    公开(公告)日:2021-12-02

    申请号:US17378975

    申请日:2021-07-19

    Abstract: Various embodiments of an X-ray imaging system employ a C-arm (60) and an X-ray overlay controller (410). In a planning overlay display mode, the controller (410) processes a planning X-ray image (420) and a reference planning X-ray image (421), both illustrative of the planning X-ray calibration device (400) and further processes a base X-ray image (424, 425) (422) illustrative of a base X-ray calibration device to control a display of a planned tool trajectory overlay (412) and a tracked tool position overlay (413) onto the planning X-ray image (420). In a guiding overlay display mode, the controller (410) processes a pair of interventional X-ray images (424, 425) and a guiding X-ray image (426), all illustrative of a guiding X-ray calibration device (402), to control a display of a guidance tool trajectory overlay (414) and a racked tool position overlay (415) onto the guiding X-ray image (426).

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