公开(公告)号：US20210298700A1

公开(公告)日：2021-09-30

申请号：US17211660

申请日：2021-03-24

Applicant: Hologic, Inc.

Inventor： Cornell Lee Williams

IPC: A61B6/00

Abstract: Methods and devices for tracking an x-ray tube focal spot position are described. As successive images are captured by an image capturing system that includes the x-ray tube, the focal spot may change position. To track the change, one or more artificial targets may be arranged relative to the image capturing system such that an initial image is received that includes the artificial targets at a first position in the initial image. A gain map may be generated based on the initial image, and applied to a subsequent image received that also includes the artificial targets to generate a normalized subsequent image. A shift of the artificial targets from the first position in the initial image to a second position in the normalized subsequent image may be identified, where the shift corresponds to the focal spot's position change. Mathematical and/or physical adjustments may be made to correct for the change.

公开(公告)号：US10881359B2

公开(公告)日：2021-01-05

申请号：US16106472

申请日：2018-08-21

Applicant: Hologic, Inc.

Inventor： Cornell Lee Williams

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/02 ,  G01N23/046

Abstract: Methods and systems for imaging anatomical portions of a patient. A method includes moving a radiation source and a detector at least partially around a longitudinal axis of the patient, emitting radiation at a first energy level at a first angle around a longitudinal axis of the patient, wherein the first energy level is a predetermined energy level for a first anatomical target, detecting the radiation emitted at the first energy level, emitting radiation at a second energy level at second angle around the longitudinal axis of the patient, wherein the second energy level is a predetermined energy level for a second anatomical target; and detecting the radiation emitted at the second energy level. The method may be performed with a standing CT machine.

公开(公告)号：US11471118B2

公开(公告)日：2022-10-18

申请号：US17211660

申请日：2021-03-24

Applicant: Hologic, Inc.

Inventor： Cornell Lee Williams

IPC: A61B6/00 ,  H05G1/52

Abstract: Methods and devices for tracking an x-ray tube focal spot position are described. As successive images are captured by an image capturing system that includes the x-ray tube, the focal spot may change position. To track the change, one or more artificial targets may be arranged relative to the image capturing system such that an initial image is received that includes the artificial targets at a first position in the initial image. A gain map may be generated based on the initial image, and applied to a subsequent image received that also includes the artificial targets to generate a normalized subsequent image. A shift of the artificial targets from the first position in the initial image to a second position in the normalized subsequent image may be identified, where the shift corresponds to the focal spot's position change. Mathematical and/or physical adjustments may be made to correct for the change.

公开(公告)号：US11426132B2

公开(公告)日：2022-08-30

申请号：US16981934

申请日：2019-05-24

Applicant: HOLOGIC, INC.

Inventor： Kenneth F. Defreitas ,  Alan Rego ,  Richard Gladwin Edwards ,  Christine Janssen ,  Zhenxue Jing ,  Jay A. Stein ,  Diane M. Conlin ,  Timothy N. Wells ,  Cornell Lee Williams

IPC: A61B6/04 ,  A61B6/00 ,  A61B6/02 ,  A61B6/03

Abstract: While performing a tomosynthesis procedure, the breast of a patient is compressed between two compression elements to create an imaging condition. Foam is secured to the rigid substrate of a one of the compression elements. The patient's chest wall is aligned with the leading edge surface of the foam. The inner side of the breast is disposed proximate the lateral edge surface of the foam and the outer side of the breast is disposed proximate the outer lateral edge surface of the foam. A mid-plane is disposed between the inner and outer lateral edge surfaces of the foam. An interface connects a leading edge surface of the foam and compressive surfaces. A portion of the leading edge surface which is aligned with the mid-plane is incompletely compressed.

公开(公告)号：US12059279B2

公开(公告)日：2024-08-13

申请号：US18362434

申请日：2023-07-31

Applicant: Hologic, Inc.

Inventor： Kenneth F. Defreitas ,  Alan Rego ,  Richard Gladwin Edwards ,  Zhenxue Jing ,  Jay A. Stein ,  Timothy N. Wells ,  Cornell Lee Williams

IPC: A61B6/04 ,  A61B6/50 ,  A61B6/02 ,  A61B6/03

CPC classification number: A61B6/0414 ,  A61B6/0435 ,  A61B6/502 ,  A61B6/025 ,  A61B6/032

Abstract: While performing a tomosynthesis procedure, the breast of a patient is compressed between two compression elements to create an imaging condition. Foam is secured to the rigid substrate of a one of the compression elements. The patient's chest wall is aligned with the leading edge surface of the foam. The inner side of the breast is disposed proximate the lateral edge surface of the foam and the outer side of the breast is disposed proximate the outer lateral edge surface of the foam. A mid-plane is disposed between the inner and outer lateral edge surfaces of the foam. An interface connects a leading edge surface of the foam and compressive surfaces. A portion of the leading edge surface which is aligned with the mid-plane is incompletely compressed.

公开(公告)号：US11950948B2

公开(公告)日：2024-04-09

申请号：US17277013

申请日：2019-09-17

Applicant: HOLOGIC, INC.

Inventor： Cornell Lee Williams ,  Brad Polischuk

IPC: A61B6/00 ,  G06T5/50 ,  G06T7/00

CPC classification number: A61B6/5258 ,  A61B6/542 ,  G06T5/50 ,  G06T7/0012 ,  G06T2207/10116

Abstract: Radiographic imaging techniques include the use of an exposure sequence having a plurality of specimen exposure windows. The plurality of specimen exposure windows have a total exposure time period that satisfies a desired exposure time. The plurality of exposure frames resulting from the plurality of specimen exposure windows are summed to form an output frame. The output frame is provided as output.

公开(公告)号：US20190059830A1

公开(公告)日：2019-02-28

申请号：US16106472

申请日：2018-08-21

Applicant: Hologic, Inc.

Inventor： Cornell Lee Williams

IPC: A61B6/03 ,  A61B6/00

Abstract: Methods and systems for imaging anatomical portions of a patient. A method includes moving a radiation source and a detector at least partially around a longitudinal axis of the patient, emitting radiation at a first energy level at a first angle around a longitudinal axis of the patient, wherein the first energy level is a predetermined energy level for a first anatomical target, detecting the radiation emitted at the first energy level, emitting radiation at a second energy level at second angle around the longitudinal axis of the patient, wherein the second energy level is a predetermined energy level for a second anatomical target; and detecting the radiation emitted at the second energy level. The method may be performed with a standing CT machine.