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公开(公告)号：US10182776B2
公开(公告)日：2019-01-22
申请号：US15024463
申请日：2014-07-15
Applicant: SIEMENS HEALTHCARE GMBH
Inventor： Karl Barth , Adrian Egli , Rainer Graumann , Adrian John , Gerhard Kleinszig , Wei Wei
Abstract: A system for displaying an image includes at least one x-ray source for emitting radiation, a detector for acquiring the radiation emitted by the radiation source for generating an x-ray image, the detector being disposed opposite the radiation source in relation to an object to be examined, a computer unit for performing computational operations, a display device for displaying x-ray images acquired by the detector and at least one data acquisition unit for acquiring surface information of the object to be examined. The data acquisition unit is disposed on the detector side and the computer unit is configured to correlate the data acquired by the detector-side data acquisition unit with the x-ray image.
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公开(公告)号：US11481936B2
公开(公告)日：2022-10-25
申请号：US16839364
申请日：2020-04-03
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Gerhard Kleinszig , Björn Kreher , Holger Kunze , Jessica Magaraggia , Markus Weiten
Abstract: A method for establishing a three-dimensional tomosynthesis data record of a target volume from two-dimensional projection images recorded with a recording arrangement including an X-ray source and an X-ray detector in different recording geometries is provided. During or after a reconstruction step, a deconvolution technique is used for reducing image artifacts of the tomosynthesis data record occurring due to lacking information. The projection images are recorded along a linear recording trajectory of the X-ray source. The reconstruction and the use of the deconvolution technique take place in a plurality of different two-dimensional reconstruction planes that are spanned by the recording trajectory and, in each case, a definition point in the target volume.
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公开(公告)号：US11382592B2
公开(公告)日：2022-07-12
申请号：US16833412
申请日：2020-03-27
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Gerhard Kleinszig , Bjoern Kreher , Holger Kunze , Jessica Magaraggia , Markus Weiten
Abstract: A method for increasing accuracy of positioning an X-ray device relative to an examination subject using a camera system includes recording a first data set, acquiring original positioning information pertaining to the X-ray device and specifying a target position of the X-ray device relative to the original position. The X-ray device is positioned out of the original position into a first approach position using the original positioning information, and a second data set is recorded. A deviation between the target position and the first approach position is determined by a reconciliation between the first data set and the second data set. The X-ray device is positioned out of the first approach position into a second approach position using the determined deviation.
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公开(公告)号：US20200320755A1
公开(公告)日：2020-10-08
申请号：US16839364
申请日：2020-04-03
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Gerhard Kleinszig , Björn Kreher , Holger Kunze , Jessica Magaraggia , Markus Weiten
Abstract: A method for establishing a three-dimensional tomosynthesis data record of a target volume from two-dimensional projection images recorded with a recording arrangement including an X-ray source and an X-ray detector in different recording geometries is provided. During or after a reconstruction step, a deconvolution technique is used for reducing image artifacts of the tomosynthesis data record occurring due to lacking information. The projection images are recorded along a linear recording trajectory of the X-ray source. The reconstruction and the use of the deconvolution technique take place in a plurality of different two-dimensional reconstruction planes that are spanned by the recording trajectory and, in each case, a definition point in the target volume.
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公开(公告)号：US20190117180A1
公开(公告)日：2019-04-25
申请号：US16163357
申请日：2018-10-17
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Gerhard Kleinszig , Björn Kreher , Benedict Swartman , Wei Wei , Markus Weiten , Qiao Yang
IPC: A61B6/00
Abstract: A method for determining an alignment between at least two bone parts of an elongated bone system of a patient includes recording a plurality of partially spatially overlapping projection images by a recording system of an x-ray device during a translational movement of the x-ray device or the recording system in a direction of or parallel to a longitudinal axis of the bone system. Tomosynthesis image data of the bone parts is reconstructed from the recorded projection images, and an alignment angle between the at least two bone parts is determined or estimated at least partially based on the reconstructed tomosynthesis image data and/or the plurality of projection images.
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Patent Agency Ranking
公开(公告)号：US11669984B2
公开(公告)日：2023-06-06
申请号：US17175125
申请日：2021-02-12
Applicant: THE JOHNS HOPKINS UNIVERSITY , Siemens Healthcare GmbH
Inventor： Jeffrey H. Siewerdsen , Runze Han , Gerhard Kleinszig , Sebastian Vogt
CPC classification number: G06T7/344 , A61B34/10 , G06T7/11 , G06T7/337 , G06T17/00 , G06T19/20 , A61B34/20 , A61B2034/102 , A61B2034/105 , A61B2090/367 , A61B2090/3762 , G06T2207/10081 , G06T2207/10124 , G06T2207/30008 , G06T2210/41 , G06T2219/2004
Abstract: A method, computer system, and a computer-readable medium for registering one or more structures to a desired orientation for planning and guidance for surgery is provided. The method includes in a preoperative stage, obtaining one or more 3D models of one or more structures from one or more CT images using an image processing segmentation technique or a manual segmentation technique; in the preoperative stage, registering the one or more structures to a template that is adapted to an alternating registration for a patient-specific shape and pose for a desired reduction and corresponding reduction transformations; in an intraoperative stage, mapping the one or more structures to one or more radiographs via a 3D-2D registration that iteratively optimizes a similarity metric between acquired and simulated radiographs; and in the intraoperative stage, providing an output that is representative of a radiograph or a 3D tomographic representation to provide guidance to a user.
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公开(公告)号：US10925569B2
公开(公告)日：2021-02-23
申请号：US15473919
申请日：2017-03-30
Applicant: SIEMENS HEALTHCARE GMBH
Inventor： Olivier Ecabert , Alexander Gemmel , Gerhard Kleinszig , Birgi Tamersoy
Abstract: During the generation of a panoramic x-ray recording, the use of semi-transparent x-ray screens allows the patient's x-ray exposure to be reduced when partial x-ray images are created, in spite of relatively large overlapping areas between the partial x-ray images.
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公开(公告)号：US10706546B2
公开(公告)日：2020-07-07
申请号：US16442725
申请日：2019-06-17
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Gerhard Kleinszig , Björn Kreher , Holger Kunze , Jessica Magaraggia , Stefan Schneider , Markus Weiten
Abstract: A method is provided for operating a medical imaging device when performing an imaging examination. In order to allow an improved preparation of images in the context of such an imaging examination, the method includes: providing an original image of a body region; recording an updated image of the body region; and generating a three-dimensional subsequent image from the original image and from the updated image using a previously trained artificial neural network.
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公开(公告)号：US20240050045A1
公开(公告)日：2024-02-15
申请号：US18231947
申请日：2023-08-09
Applicant: Siemens Healthcare GmbH
Inventor： Björn Kreher , Benedict Swartman , Gerhard Kleinszig , Alexander Gemmel , Holger Kunze , Markus Weiten , Jessica Magaraggia , Maxim Privalov
CPC classification number: A61B6/025 , A61B6/4441 , A61B6/505 , A61B6/5217 , A61B6/5229
Abstract: Systems and methods for ascertaining an item of torsion information of a bone of a patient, wherein an X-ray facility with adjustable projection geometry of a recording arrangement described by projection parameters is used. A first X-ray image is recorded of an end region of the bone in a first projection geometry in which a torsion direction defined relative to at least one torsion landmark and used for ascertaining a roll angle lies in a first computing plane, which is formed by the focal point of the X-ray source and a reference direction which may be determined in the first X-ray image by at least one reference landmark. A second X-ray image is recorded of the end region of the bone in a second projection geometry with a direction of projection deviating from the direction of projection of the first projection geometry, and forming a second computing plane from the reference direction which may be determined in the second X-ray image likewise by the at least one reference landmark, and the focal point. The three-dimensional course of the reference direction and the torsion direction is determined from the computing planes and the roll angle as the rotation of the torsion direction about the reference direction with respect to a comparison specification. The item of torsion information is ascertained from the roll angle.
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公开(公告)号：US11172902B2
公开(公告)日：2021-11-16
申请号：US16784429
申请日：2020-02-07
Applicant: Siemens Healthcare GmbH
Inventor： Alexander Gemmel , Björn Kreher , Holger Kunze , Markus Weiten , Jessica Magaraggia , Gerhard Kleinszig , Tobias Lenich , Edgar Zaus
Abstract: The disclosure relates to a method for recording a panorama dataset of an examination object by a movable medical x-ray device, to a medical x-ray device, and to a computer program product for carrying out the method. The medical x-ray device has an x-ray source, which emits a bundle of x-rays, wherein a first image segment, which maps at least one part of the examination object, is recorded at a first point in time. Position data is acquired, which maps the spatial position of the x-ray device at this first point in time. At least one further image segment along an imaging path is recorded after there has been a movement of the x-ray device, wherein the imaging path lies in one plane, wherein a central ray of the bundle of x-rays emitted by the x-ray source does not run in parallel to the plane in which the imaging path lies. Additionally, position data is acquired, which maps the spatial position of the x-ray device at the time of the recording of the at least one further image segment. The acquired position data is uniquely assigned to the recorded image segments. The panorama dataset is assembled from at least two image segments with the position data assigned thereto from a set of all recorded image segments with the position data assigned thereto.
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