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公开(公告)号：US11172903B2
公开(公告)日：2021-11-16
申请号：US16052366
申请日：2018-08-01
Applicant: UIH AMERICA, INC.
Inventor： Wentao Zhu , Hongdi Li
Abstract: A method for imaging may include directing a PET scanner to perform scans of a subject injected with a tracer during a first time period. The method may also include generating PET images by reconstructing the PET data that are generated by the PET scanner based on the scans of the subject. The method may also include determining a first portion of a blood input function of the tracer in the subject based on the PET images. The method may also include determining an integral of a second portion of the blood input function based on a kinetic model, the PET data, and the first portion of the blood input function. The method may also include determining kinetic parameters of the kinetic model based on the PET data, the first portion of the blood input function, and the integral of the second portion of the blood input function.
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公开(公告)号：US10438378B2
公开(公告)日：2019-10-08
申请号：US15686157
申请日：2017-08-25
Applicant: UIH AMERICA, INC.
Inventor： Tao Feng , Jizhe Wang , Wentao Zhu , Hongdi Li
Abstract: The present disclosure relates to systems and methods for determining a target activity map and a target attenuation map for producing a PET image. The systems may execute the methods to acquire, based on a PET system, a first dataset relating to coincidence events with TOF information, and a second dataset relating to single events. The systems may also execute the methods to determine a target activity map and a target attenuation map based on the first dataset and the second dataset through a plurality of iterations. The systems may further execute the methods to generate the PET image based on the target activity map and the target attenuation map.
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公开(公告)号：US20180235553A1
公开(公告)日：2018-08-23
申请号：US15439898
申请日：2017-02-22
Applicant: UIH AMERICA, INC.
Inventor： Tao Feng , Wentao Zhu , Hongdi Li
CPC classification number: A61B6/037 , A61B6/032 , A61B6/503 , A61B6/5205 , A61B6/5264 , G01T1/2985
Abstract: A system and method of imaging a patient are provided. The system may include an acquisition configured to obtain a PET dataset relating to a target organ of a patient. The system may also include a processing module configured to determine a reference point of the target organ, divide the PET dataset into a plurality of data frames, and determine a motion signal of the target organ based on a plurality of first statistical parameters and a plurality of second statistical parameters. The processing module may further sort the PET dataset into a plurality of bins based on the motion signal.
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公开(公告)号：US10307116B2
公开(公告)日：2019-06-04
申请号：US15439898
申请日：2017-02-22
Applicant: UIH AMERICA, INC.
Inventor： Tao Feng , Wentao Zhu , Hongdi Li
Abstract: A system and method of imaging a patient are provided. The system may include an acquisition configured to obtain a PET dataset relating to a target organ of a patient. The system may also include a processing module configured to determine a reference point of the target organ, divide the PET dataset into a plurality of data frames, and determine a motion signal of the target organ based on a plurality of first statistical parameters and a plurality of second statistical parameters. The processing module may further sort the PET dataset into a plurality of bins based on the motion signal.
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Patent Agency Ranking
公开(公告)号：US10255694B2
公开(公告)日：2019-04-09
申请号：US15386048
申请日：2016-12-21
Applicant: UIH AMERICA, INC.
Inventor： Tao Feng , Wentao Zhu , Hongdi Li
Abstract: The present disclosure relates to systems and methods for reconstructing an Emission Computed Tomography (ECT) image. The systems, having at least one machine each of which has at least one processor and storage, may perform the methods to obtain ECT projection data, the ECT projection data corresponding to a plurality of voxels; determine a plurality of gate numbers for the plurality of voxels, the plurality of gate numbers relating to motion information of the plurality of voxels; and reconstruct an ECT image based on the ECT projection data and the plurality of gate numbers.
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公开(公告)号：US10695009B2
公开(公告)日：2020-06-30
申请号：US16429185
申请日：2019-06-03
Applicant: UIH AMERICA, INC.
Inventor： Tao Feng , Wentao Zhu , Hongdi Li
Abstract: A system and method of imaging a patient are provided. The system may include an acquisition configured to obtain a PET dataset relating to a target organ of a patient. The system may also include a processing module configured to determine a reference point of the target organ, divide the PET dataset into a plurality of data frames, and determine a motion signal of the target organ based on a plurality of first statistical parameters and a plurality of second statistical parameters. The processing module may further sort the PET dataset into a plurality of bins based on the motion signal.
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公开(公告)号：US10650556B2
公开(公告)日：2020-05-12
申请号：US16544418
申请日：2019-08-19
Applicant: UIH AMERICA, INC.
Inventor： Wentao Zhu , Hongdi Li
Abstract: The present disclosure relates to systems and methods for reconstructing a PET image. The systems may execute the methods to acquire PET data of a subject. The PET data may include position information of a plurality of coincident events. The plurality of coincident events may include scattering events and random events. The systems may execute the methods to select a portion of the PET data from the PET data based on the position information. The systems may execute the methods to reconstruct a first preliminary image of the subject based on the selected portion of the PET data, and project the first preliminary image. The systems may execute the methods to may determine, based on the PET data and the projection of the first preliminary image, preliminary correction data relating to the scattering events and the random events.
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公开(公告)号：US10410383B2
公开(公告)日：2019-09-10
申请号：US15687473
申请日：2017-08-26
Applicant: UIH AMERICA, INC.
Inventor： Wentao Zhu , Hongdi Li
Abstract: The present disclosure relates to systems and methods for reconstructing a PET image. The systems may execute the methods to acquire PET data of a subject. The PET data may include position information of a plurality of coincident events. The plurality of coincident events may include scattering events and random events. The systems may execute the methods to select a portion of the PET data from the PET data based on the position information. The systems may execute the methods to reconstruct a first preliminary image of the subject based on the selected portion of the PET data, and project the first preliminary image. The systems may execute the methods to may determine, based on the PET data and the projection of the first preliminary image, preliminary correction data relating to the scattering events and the random events.
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公开(公告)号：US10282871B2
公开(公告)日：2019-05-07
申请号：US15645558
申请日：2017-07-10
Applicant: UIH AMERICA, INC.
Inventor： Jizhe Wang , Tao Feng , Hongdi Li , Wentao Zhu
Abstract: A method may include; obtaining a 3D CT image of a scanning area of a subject; obtaining PET data of the scanning area of the subject; gating the PET data based on a plurality of motion phases; reconstructing a plurality of gated 3D PET images; registering the plurality of gated 3D PET images with a reference 3D PET image; determining a motion vector field corresponding to a gated 3D PET image of the plurality of gated 3D PET images based on the registration; determining a motion phase for each of the plurality of CT image layers; correcting, for each of the plurality of CT image layers, the CT image layer with respect to a reference motion phase; and reconstructing a gated PET image with respect to the reference motion phase based on the corrected CT image layers and the PET data.
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