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公开(公告)号：WO2023086351A1
公开(公告)日：2023-05-19
申请号：PCT/US2022/049351
申请日：2022-11-09
Applicant: CARESTREAM HEALTH, INC.
Inventor： BOGONI, Luca , WANG, Xiaohui , JONES, Robert S.
Abstract: An apparatus and method for generating a high-resolution radiographic image of an object by capturing a first radiographic image of the object using an x-ray source and a digital radiographic detector, then displacing at least one of the x-ray source and the detector. A second radiographic image of the object is captured, using the displaced x-ray source or digital radiographic detector, and the two captured images of the object are combined.
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公开(公告)号：WO2023085531A2
公开(公告)日：2023-05-19
申请号：PCT/KR2022/005177
申请日：2022-04-11
Applicant: 주식회사 에이투테크
IPC: A61B6/00
Abstract: 본 발명은 엑스선을 이용하여 컬러 영상을 촬영하기 위한 장치에 관한 것으로, 엑스선을 발생하여 대상물에 조사하는 엑스선 발생부; 상기 대상물을 투과한 엑스선의 서로 다른 에너지 대역을 검출하여 가시광선으로 변환하는 제1 신틸레이터 내지 제3 신틸레이터를 포함하는 엑스선 검출부; 상기 엑스선 검출부에서 변환된 각각의 가시광선에 대응하는 포토다이오드를 포함하여 컬러 영상을 생성하는 영상 생성부를 포함하는 것을 특징으로 한다.
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公开(公告)号：WO2023083700A1
公开(公告)日：2023-05-19
申请号：PCT/EP2022/080747
申请日：2022-11-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： SALEHI, Leili , SINHA, Ayushi , ERKAMP, Ramon, Quido , TOPOREK, Grzegorz, Andrzej , PANSE, Ashish, Sattyavrat
Abstract: A computer-implemented method of providing a temporal sequence of 3D angiographic images (110) representing a flow of a contrast agent through a region of interest (120),is provided. The method includes: inputting (S130) volumetric image data (130a, 130b), and atemporal sequence of 2D angiographic images (140) into a neural network (NN1); and generating (S140) the predicted temporal sequence of 3D angiographic images (110) representing the flow of the contrast agent through the region of interest (120) in response to the inputting.
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公开(公告)号：WO2023076504A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/048072
申请日：2022-10-27
Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION
Inventor： CHEN, Guang-Hong , LI, Ke
Abstract: A system and method for creating computed tomography (CT) images includes acquiring or accessing sinogram data and determining a photon count for the sinogram data. The method includes generating unbiased sinogram data from the sinogram data using an unbiased estimator and the photon count and reconstructing a CT image from the unbiased sinogram data.
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公开(公告)号：WO2023075783A1
公开(公告)日：2023-05-04
申请号：PCT/US2021/057251
申请日：2021-10-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In an example, a method includes defining, for an interior portion of an object to be generated in additive manufacturing, an imaging characteristic in a radiation environment. In some examples the method further includes deriving object model data for generating the interior portion of the object by determining an amount of a first contrast agent and an amount of a second contrast agent to deposit such that the object generated according to the object model data comprises the defined imaging characteristic apparent in an image of at least a part of the object comprising the interior portion captured in the radiation environment. The first contrast agent and the second contrast agent may have different imaging characteristics in the radiation environment.
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Patent Agency Ranking
公开(公告)号：WO2023058858A1
公开(公告)日：2023-04-13
申请号：PCT/KR2022/010685
申请日：2022-07-21
Applicant: 엘지전자 주식회사
IPC: A61B6/00
Abstract: 영상 처리 방법 및 장치가 개시된다. 본 개시의 실시 예에 따른 영상 처리 방법은, 엑스레이 영상을 획득하는 단계; 획득된 엑스레이 영상을 주파수 도메인으로 변환하는 단계; 변환된 주파수 도메인의 엑스레이 영상에서 피크 형태 정보를 검출하는 단계; 상기 피크 형태 정보에 기초하여 피크 후보 영역을 선정하는 단계; 상기 선정된 각 피크 후보 영역에 대해 그리드 피크 여부를 판단하고 피크 맵을 생성하는 단계; 상기 생성된 피크 맵에 기초하여 필터링하는 단계; 상기 필터링 된 주파수 도메인의 엑스레이 영상을 공간 도메인으로 변환하는 단계; 및 상기 공간 도메인으로 변환된 엑스레이 영상을 제공하는 단계를 포함하여 이루어진다.
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公开(公告)号：WO2023057189A1
公开(公告)日：2023-04-13
申请号：PCT/EP2022/075750
申请日：2022-09-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： FLORENT, Raoul , LEVRIER, Claire , ALEXANDRE, This , SCHMITT, Holger , VAN DER HORST, Arjen
Abstract: A system (100) for providing value of a transit velocity of an injected contrast agent bolus in a lumen, is provided. The system comprises one or more processors (120) configured to: receive X-ray angiographic image data comprising a temporal sequence of images representing a flow of the injected contrast agent bolus through a vessel tree comprising the lumen; generate a time-intensity curve for the vessel tree from the temporal sequence of images; calculate a transit time (TT) from the time-intensity curve; determine an estimate of the transit length (dT) of the lumen based on an analysis of an earlier X-ray image and a later X-ray image; and calculate the value of the transit velocity of the injected contrast agent bolus in the lumen based on a ratio of the estimated transit length (dT) to the calculated transit time (TT).
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公开(公告)号：WO2023047355A1
公开(公告)日：2023-03-30
申请号：PCT/IB2022/059030
申请日：2022-09-23
Applicant: AUGMEDICS LTD.
Inventor： ELIMELECH, Nissan , KUHNERT, Monica Marie , BAR-ZOHAR, Gal , MEIDAN, Lilach , WOLF, Stuart
Abstract: A method includes accessing a computerized tomography (CT) scan of a human subject and defining a first two-dimensional (2D) slice (200) of the scan and a second 2D slice (204) of the scan, so that the first and the second slices intersect in an intersection line (224) defining a desired trajectory. The method further includes overlaying on the intersection line an icon (250) representing an object used in a procedure on the human subject, and rendering a three-dimensional (3D) image (650) of the human subject, incorporating the overlayed icon, from the CT scan.
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公开(公告)号：WO2023043151A1
公开(公告)日：2023-03-23
申请号：PCT/KR2022/013639
申请日：2022-09-13
Applicant: 주식회사 잇다헬스케어
Inventor： 이정우
Abstract: 본 발명은 두부계측방사선 분석 영상에서 랜드마크의 위치를 자동으로 추출하는 장치 및 그것의 동작방법에 관한 것입니다. 랜드마크 추출장치의 동작방법에 있어서, 환자의 두개골에 대해 스캔데이터를 로드하는 단계; 스캔데이터에 기초하여 기준면을 생성하는 단계; 기준면에 기초하여 랜드마크를 추출하는 단계; 및 추출된 랜드마크를 분석하는 단계를 포함할 수 있습니다. 본 발명을 통해, 낮은 오차율로 랜드마크의 위치를 추출하여 의료인의 치료과정을 최적화하고, 환자의 진료에 대한 만족도를 극대화할 수 있습니다.
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公开(公告)号：WO2023040918A1
公开(公告)日：2023-03-23
申请号：PCT/CN2022/118843
申请日：2022-09-14
Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Inventor： ZHAO, Xiaofen , LI, Yang , GUO, Huiwen
Abstract: The embodiments provide a method for vascular analysis. The method may include determining a peak phase in a plurality of phases based on perfusion scanning data of the plurality of phases (210); obtaining a reconstruction result of the peak phase by performing, based on the perfusion scanning data of the peak phase, image reconstruction (220); and performing vascular analysis based on the reconstruction result of peak phase (230).
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