知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

58 records (took 0.013 seconds)

    TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES
    11.
    发明申请
    TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES 有权
    具有移位焦点位置和振荡收缩片的TOMOSYNTHESIS

    公开(公告)号：US20140016737A1

    公开(公告)日：2014-01-16

    申请号：US13966606

    申请日：2013-08-14

    Applicant: Hologic, Inc.

    Inventor： Baorui Ren ,  Andrew P. Smith ,  Thomas Farbizio ,  Zhenxue Jing ,  Jay Stein

    IPC: A61B6/03

    CPC classification number: A61B6/06 ,  A61B6/025 ,  A61B6/03 ,  A61B6/035 ,  A61B6/502 ,  G21K1/02 ,  G21K1/04

    Abstract: In a tomosynthesis system a static focal spot is moved in a direction opposite to and generally synchronized with the directional movement of an x-ray source and X-ray collimator blades are moved during each exposure in synchronization with the shifting of the static focal spot. The synchronized movement of the static focal spot, x-ray tube and collimator blades helps keep the effective focal spot fixed in space relative to the breast, detector or both during the entire duration of the exposure and keeps the x-ray field on the detector and breast static. The shifting collimator blades follow an oscillating pattern over the multiple x-ray exposures of a tomosynthesis scan.

    Abstract translation: 在断层合成系统中，静态焦点沿着与X射线源的定向运动相反并且大体上与X射线源的定向运动相同的方向移动，并且与静态焦点的移动同步地在每次曝光期间移动X射线准直器叶片。 静态焦点，X射线管和准直器刀片的同步运动有助于在曝光的整个持续时间内将有效焦斑保持在相对于乳房，检测器或两者的空间中，并将X射线场保持在检测器 和乳房静电。 移位准直器刀片遵循断层扫描合成扫描的多次X射线曝光的振荡模式。

    X-ray mammography with tomosynthesis
    12.
    发明授权
    X-ray mammography with tomosynthesis 有权

    公开(公告)号：US11096644B2

    公开(公告)日：2021-08-24

    申请号：US16004151

    申请日：2018-06-08

    Applicant: Hologic, Inc.

    Inventor： Kenneth DeFreitas ,  Baorui Ren ,  Ian Shaw ,  Christopher Ruth ,  Andrew P. Smith ,  Jay A. Stein

    IPC: A61B6/00 ,  A61B6/02 ,  A61B6/04

    Abstract: A method and system for producing tomosynthetic images of a patient's breast. An x-ray source that delivers x-rays through a breast immobilized and compressed between a compression paddle and a breast platform and form an image at a digital x-ray receptor panel. Multiple x-ray images are taken as the x-ray source and the receptor move relative to the immobilized breast. In one preferred embodiment, the x-ray source travels from −15° to +15°. The source can travel in an arc around the breast while the receptor travels linearly while remaining parallel and at the same distance from the breast platform. The sets of x-ray image data taken at different angles are combined to form tomosynthetic images that can be viewed in different formats, alone or as an adjunct to conventional mammograms.

    X-ray imaging with x-ray markers that provide adjunct information but preserve image quality
    14.
    发明授权
    X-ray imaging with x-ray markers that provide adjunct information but preserve image quality 有权

    公开(公告)号：US10952692B2

    公开(公告)日：2021-03-23

    申请号：US16515448

    申请日：2019-07-18

    Applicant: Hologic, Inc.

    Inventor： Baorui Ren ,  Andrew P. Smith ,  Zhenxue Jing ,  Jay Stein ,  Kenneth F. Defreitas

    IPC: A61B6/00 ,  A61B6/04 ,  A61B5/107

    Abstract: A method and an apparatus for estimating a geometric thickness of a breast in mammography/tomosynthesis or in other x-ray procedures, by imaging markers that are in the path of x-rays passing through the imaged object. The markings can be selected to be visible or to be invisible when the composite markings/breast image is viewed in clinical settings. If desired, the contribution of the markers to the image can be removed through further processing. The resulting information can be used determining the geometric thickness of the body being x-rayed and thus setting imaging parameters that are thickness-related, and for other purposes. The method and apparatus also have application in other types of x-ray imaging.

Patent Agency Ranking