Interventional tool stepper for electromagnetic tracking

    公开(公告)号:US11576728B2

    公开(公告)日:2023-02-14

    申请号:US14914748

    申请日:2014-09-18

    Abstract: An interventional tool stepper (30) employing a frame (31), a carriage (33), an optional gear assembly (32), and an optional grid template(34). The frame (31) is structurally configured to be positioned relative to an anatomical region for holding an interventional tool (40) relative to the anatomical region. The carriage (33) is structurally configured to hold the interventional tool (40) relative to the anatomical region. The gear assembly (32) is structurally configured to translate and/or rotate the carriage (33) relative to the frame (31). The grid template (34) is structurally configured to guide one or more additional interventional tools (41) relative to the anatomical region. The frame (31), the carriage (33), the optional gear assembly (32) and the optional grid template (34) have an electromagnetic-compatible material composition for minimizing any distortion by the interventional tool stepper (30) of an electromagnetic field.

    RECONSTRUCTION-FREE AUTOMATIC MULTI-MODALITY ULTRASOUND REGISTRATION

    公开(公告)号:US20220346757A1

    公开(公告)日:2022-11-03

    申请号:US17865654

    申请日:2022-07-15

    Abstract: Image co-registration entails: emitting energy, and responsively and dynamically acquiring images, the acquired images having a given dimensionality; selecting, repeatedly, and dynamically with the acquiring, from among the acquired images and, as a result of the selecting, changing, repeatedly, and dynamically, membership in a set of images of the given dimensionality; and, synchronously with the change, dynamically and iteratively registering the set to an image having a dimensionality higher than the given dimensionality. The co-registration is realizable with an imaging probe for the acquiring, and a tracking system for tracking a location, and orientation, of the probe, the registering being specialized for the acquiring with the probe being dynamically, during the acquiring, any one or more of angulated, rotated and translated. The registering is initialized by individual transformations of members of the set, but without need for reconstruction, of the set into an image of dimensionality higher than the given dimensionality, that derives, from the set, additional pixels external to the members.

    Workflow, system and method for motion compensation in ultrasound procedures

    公开(公告)号:US11484288B2

    公开(公告)日:2022-11-01

    申请号:US16612386

    申请日:2018-05-07

    Inventor: Jochen Kruecker

    Abstract: An ultrasound imaging device (10) with an ultrasound probe (12) acquires a live ultrasound image which is displayed with a contour (62) or reference image (60) registered with the live ultrasound image using a composite transform (42). To update the composite transform, the ultrasound imaging device acquires a baseline three-dimensional ultrasound (3D-US) image (66) tagged with a corresponding baseline orientation of the ultrasound probe measured by a probe tracker, and one or more reference 3D-US images (70) each tagged with a corresponding reference orientation. Transforms (54) are computed to spatially register each reference 3D-US image with the baseline 3D-US image. A closest reference 3D-US image is determined whose corresponding orientation is closest to a current orientation of the ultrasound probe as measured by the probe tracker. The composite transform is updated to include the transform to spatially register the closest reference 3D-US image to the baseline 3D-US image.

    SYSTEM AND METHOD FOR REAL-TIME FUSION OF ACOUSTIC IMAGE WITH REFERENCE IMAGE

    公开(公告)号:US20220287686A1

    公开(公告)日:2022-09-15

    申请号:US17630262

    申请日:2020-07-24

    Abstract: A system (200) and method (900): access (910) a 3D reference image of a region of interest (ROI) (10) in a subject which was obtained using a first 3D imaging modality; segment (920) the ROI in the 3D reference image to define (930) a reference 3D coordinate system; acquire (940) 2D acoustic images of the ROI without absolute spatial tracking; generate (950) a standardized predicted pose for the 2D acoustic images with respect to a standardized 3D coordinate system (400) which was defined for a plurality of previously-obtained 3D images of corresponding ROIs in a plurality of other subjects which were obtained using the first 3D imaging modality; convert (960) the standardized predicted poses for the 2D acoustic images from the standardized 3D coordinate system to reference predicted poses in the reference 3D coordinate system; and use (970) the reference predicted poses for the 2D acoustic images to register the 2D acoustic images to the 3D reference image.

    Reconstruction-free automatic multi-modality ultrasound registration

    公开(公告)号:US11419583B2

    公开(公告)日:2022-08-23

    申请号:US15310925

    申请日:2015-04-01

    Abstract: Image co-registration (S390) entails: emitting energy, and responsively and dynamically acquiring images (216), the acquired images having a given dimensionality; selecting, repeatedly, and dynamically with the acquiring, from among the acquired images and, as a result of the selecting, changing, repeatedly, and dynamically, membership in a set (226) of images of the given dimensionality; and, synchronously with the change (S376), dynamically and iteratively registering the set to an image having a dimensionality higher than the given dimensionality. The co-registration is realizable with an imaging probe (140) for the acquiring, and a tracking system for tracking a location, and orientation, of the probe, the registering being specialized for the acquiring with the probe being dynamically, during the acquiring, any one or more of angulated, rotated and translated. The registering is initialized by individual transformations (220) of members of the set, but without need for reconstruction, of the set into an image of dimensionality higher than the given dimensionality, that derives, from the set, additional pixels (219) external to the members.

    System and method for probe calibration and interventional acoustic imaging

    公开(公告)号:US11331070B2

    公开(公告)日:2022-05-17

    申请号:US16066082

    申请日:2016-12-21

    Abstract: A system includes an acoustic probe and an acoustic imaging machine. The acoustic probe includes a substrate with first and second principal surfaces, a device insertion port with an opening passing through the substrate from the first principal surface to the second principal surface, and an array of acoustic transducer elements supported by the substrate and disposed around the device insertion port. The acoustic imaging machine may systematically vary the size and/or position of the active acoustic aperture of the probe by providing transmit signals to selected acoustic transducer elements to cause the array to transmit an acoustic probe signal to an area of interest and may record a feedback signal of the transmit signals from an acoustic receiver provided at a distal end of an interventional device passed through the device insertion port into the area of interest to find an active acoustic aperture having optimal acoustic performance.

    Brachytherapy treatment planning system

    公开(公告)号:US11247070B2

    公开(公告)日:2022-02-15

    申请号:US16962899

    申请日:2019-03-13

    Abstract: A brachytherapy treatment planning system includes a processor that: receives a planning image corresponding to at least a portion of a prostate; generates a brachytherapy treatment plan comprising, for each of a plurality of brachytherapy seeds or catheters, a corresponding brachytherapy seed or catheter position in the planning image such that the plurality of brachytherapy seed or catheter positions in the planning image together satisfy a desired radioactive dose objective in the prostate; receives a pre-treatment image corresponding to the at least a portion of a prostate; and maps each brachytherapy seed or catheter position in the planning image to a corresponding position in the pre-treatment image by performing a registration between the planning image and the pre-treatment image.

    System and method for motion compensation in medical procedures

    公开(公告)号:US10893851B2

    公开(公告)日:2021-01-19

    申请号:US15567648

    申请日:2016-05-09

    Inventor: Jochen Kruecker

    Abstract: A system for fusing images to account for motion compensation includes an imaging modality configured to obtain a baseline image and current images. A live tracking system is configured to track an imaging instrument for capturing the baseline image and the current images, the live tracking system having a coordinate system registered with the baseline image and the current images. A pose analyzer unit is configured to employ field of view differences between a pose for the baseline image and a pose for a current view image using the live tracking system to generate success parameters. The success parameters are conveyed to the user to provide feedback on image acquisition for motion compensation between the baseline image and the current view image.

    Assisting apparatus for assisting in performing a brachytherapy

    公开(公告)号:US10549123B2

    公开(公告)日:2020-02-04

    申请号:US14646408

    申请日:2013-11-08

    Abstract: The invention relates to an assisting apparatus for assisting in performing brachytherapy. The position of an introduction element (17) like a catheter is tracked particularly by using electromagnetic tracking, while a group of seeds is introduced into a living object (2). This provides a rough knowledge about the position of the seeds within the object. An ultrasound image showing the group is generated depending on the tracked position of the introduction element and, thus, depending on the rough knowledge about the position of the seeds, in order to optimize the ultrasound visualization with respect to showing the introduced seeds. Based on this optimized ultrasound visualization the position of a seed of the group is determined, thereby allowing for an improved determination of seed positions and correspondingly for an improved brachytherapy performed based on the determined positions.

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