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公开(公告)号：US20240202993A1
公开(公告)日：2024-06-20
申请号：US18595471
申请日：2024-03-05
发明人： Qing YE , Yizhang ZHAO , Hui LIU , Runxia MA , Zijun JI , Yinghan QU , Jinhua LI
CPC分类号： G06T11/003 , G06T7/11 , G06V10/25 , G16H30/40 , G06T2207/10104 , G06T2207/20081
摘要： Provide a method, system, and medium for processing an image. The method comprises: obtaining a plurality of dynamic frame images, each of the plurality of dynamic frame images at least including dynamic image information of a target region; and determining the time-activity curve by processing the plurality of dynamic frame images.
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公开(公告)号：US20200302619A1
公开(公告)日：2020-09-24
申请号：US16510254
申请日：2019-07-12
发明人： Jie LU , Guoguang ZHAO , Hui LIU , Yuhang SHI , Qiang HE , Jun'an ZHENG
摘要： The present disclosure relates to systems and methods for determining a motion of an object during imaging. The systems and methods may cause a light emission device to project a structured light onto the object, and cause a light reception device to detect light resulting from the structured light as projected onto the object and generate a plurality of measured images of the structured light based on the detected light. The systems and methods may further determine the motion of the object based on the plurality of measured images of the structured light and a reference image of the structured light.
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公开(公告)号：US20230172557A1
公开(公告)日：2023-06-08
申请号：US18161861
申请日：2023-01-30
发明人： Shuangyue ZHANG , Tuoyu CAO , Hui LIU
CPC分类号： A61B5/721 , A61B5/0035 , A61B5/055 , A61B6/037 , A61B6/5247 , A61B6/527 , G01R33/481 , G06T7/0012 , G06T11/008 , G06T2207/10088 , G06T2207/10104 , G06T2207/30048 , G06T2207/30168 , G06T2210/41
摘要： The present disclosure provides a system and method for motion field generation and image correction. The method may include obtaining a plurality of first sets of magnetic resonance (MR) image data of an object generated based on a plurality of first sets of imaging sequences. The method may include obtaining a motion curve of the object. The method may include obtaining position emission tomography (PET) image data of the object generated in a scanning time period. The method may include generating one or more target motion fields corresponding to the scanning time period based on the plurality of first sets of MR image data and the motion curve. The method may include generating one or more corrected PET images by correcting, based on the one or more target motion fields, the PET image data.
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公开(公告)号：US20200303049A1
公开(公告)日：2020-09-24
申请号：US16679446
申请日：2019-11-11
发明人： Zheng ZHANG , Hui LIU
摘要： The present disclosure provides a system and a method for generating an imaging report. The method may include obtaining first imaging information and second imaging information. The first and second imaging information may be acquired from an examination region of a subject using a first imaging device or a second imaging device, respectively. The method may include identifying at least one first target ROI based on the first imaging information, and determining first reporting information corresponding to the at least one first target ROI. The method may include identifying at least one second target ROI with respect to the second imaging information based on the at least one first target ROI, and determining second reporting information corresponding to the at least one second target ROI. The method may further include generating a report based on at least a part of the first reporting information or the second reporting information.
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公开(公告)号：US20240264257A1
公开(公告)日：2024-08-08
申请号：US18638636
申请日：2024-04-17
IPC分类号： G01R33/485 , G01R33/24 , G01R33/48 , G01R33/561
CPC分类号： G01R33/485 , G01R33/243 , G01R33/4828 , G01R33/5616
摘要： The present disclosure provides a system for MRI. The system may obtain a plurality of echo signals relating to a subject that are excited by an MRI pulse sequence applied to the subject. The system may perform a quantitative measurement on the subject based on the plurality of echo signals. The MRI pulse sequence may include a CEST module configured to selectively excite exchangeable protons or exchangeable molecules in the subject, an RF excitation pulse applied after the CEST module configured to excite a plurality of gradient echoes, and one or more refocusing pulses applied after the RF excitation pulse. Each of the refocusing pulses may be configured to excite one or more spin echoes. The one or more spin echoes excited by at least one of the one or more refocusing pulses may include a symmetric spin echo and one or more asymmetric spin echoes.
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公开(公告)号：US20230363722A1
公开(公告)日：2023-11-16
申请号：US18358000
申请日：2023-07-24
发明人： Lingzhi HU , Xinyuan XIA , Jiaxu ZHENG , Yuhang SHI , Tuoyu CAO , Hui LIU
CPC分类号： A61B5/7292 , G01R33/56509 , G01S13/50 , G01S13/867 , G06T11/008 , G01R33/543 , G06T7/20 , G06T2211/404 , G06T2207/10088 , G06T2207/10132 , G06T2210/41 , G06T2207/20201 , G06T2207/10081 , G06T2207/30048 , G06T2207/10104
摘要： A method for controlling a medical device may be provided. The method may include obtaining, via one or more cameras, first data regarding a first motion of a subject in an examination space of the medical device. The method may include obtaining, via one or more radars, second data regarding a second motion of the subject. The method may further include generating, based on the first data and the second data, a control signal for controlling the medical device to scan at least a part of the subject.
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公开(公告)号：US20210059609A1
公开(公告)日：2021-03-04
申请号：US16870948
申请日：2020-05-09
发明人： Shuangyue ZHANG , Tuoyu CAO , Hui LIU
摘要： The present disclosure provides a system and method for motion field generation and image correction. The method may include obtaining a plurality of first sets of magnetic resonance (MR) image data of an object generated based on a plurality of first sets of imaging sequences. The method may include obtaining a motion curve of the object. The method may include obtaining position emission tomography (PET) image data of the object generated in a scanning time period. The method may include generating one or more target motion fields corresponding to the scanning time period based on the plurality of first sets of MR image data and the motion curve. The method may include generating one or more corrected PET images by correcting, based on the one or more target motion fields, the PET image data.
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公开(公告)号：US20220326326A1
公开(公告)日：2022-10-13
申请号：US17807855
申请日：2022-06-20
IPC分类号： G01R33/485 , G01R33/561 , G01R33/24 , G01R33/48
摘要： The present disclosure provides a system for MRI. The system may obtain a plurality of echo signals relating to a subject that are excited by an MRI pulse sequence applied to the subject. The system may perform a quantitative measurement on the subject based on the plurality of echo signals. The MRI pulse sequence may include a CEST module configured to selectively excite exchangeable protons or exchangeable molecules in the subject, an RF excitation pulse applied after the CEST module configured to excite a plurality of gradient echoes, and one or more refocusing pulses applied after the RF excitation pulse. Each of the refocusing pulses may be configured to excite one or more spin echoes. The one or more spin echoes excited by at least one of the one or more refocusing pulses may include a symmetric spin echo and one or more asymmetric spin echoes.
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公开(公告)号：US20200327662A1
公开(公告)日：2020-10-15
申请号：US16568513
申请日：2019-09-12
发明人： Hui LIU , Tuoyu CAO , Yuhang SHI
摘要： The present disclosure provides a system and method for image generation. The method may include obtaining a first image of a first modality including a complete representation of a subject, obtaining a second image of a second modality including a partial representation of the subject, obtaining a trained machine learning model, generating an synthesized second image including a complete representation of the subject using the trained machine learning model based on the first image and the second image.
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