公开(公告)号：US10782379B2

公开(公告)日：2020-09-22

申请号：US16645798

申请日：2015-12-30

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Inventor： Hairong Zheng ,  Xin Liu ,  Chuanli Cheng ,  Chao Zou

IPC: G01R33/565 ,  A61B5/055

Abstract: A method, an apparatus, and a device for magnetic resonance chemical shift encoding imaging are provided. The method includes in a phasor-error spectrum established based on a simplified multi-point magnetic resonance signal model, determining a pixel point having a unique phase factor value and causing the phasor-error spectrum to reach a local minimum value as an initial seed point; estimating a phase factor value of a pixel point to be estimated according to the initial seed point to obtain a field map; mapping and merging the field maps at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain a phase factor value of a reconstructed pixel point to be estimated.

公开(公告)号：US20190011515A1

公开(公告)日：2019-01-10

申请号：US16067204

申请日：2015-12-30

Applicant: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences

Inventor： Hairong Zheng ,  Xin Liu ,  Chuanli Cheng ,  Chao Zou

IPC: G01R33/48 ,  G01R33/565 ,  G01R33/485 ,  G01R33/46 ,  A61B5/055 ,  G01R33/44 ,  G01R33/56

Abstract: Provided are a magnetic resonance chemical-shift-encoded imaging method, apparatus, and device, belonging to the technical field of magnetic resonance imaging. The method comprises: in a phasor-error plot established on the basis of a two-point magnetic resonance signal model, determining to be an initial seed point a pixel having a unique phasor and causing said plot to reach a minimal local value; according to the initial seed point, estimating the phasor value of a to-be-estimated pixel to obtain a field map; mapping and merging the field map at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain the phasor value of the reconstructed to-be-estimated pixel; according to the reconstructed seed point and the phasor value of the reconstructed to-be-estimated pixel, obtaining two separate images having predetermined components. In the method, a region simultaneously containing two components is identified as a seed point, eliminating the deviation caused by phasor-value jump at high resolution and ensuring the correctness of the seed point ultimately selected.

公开(公告)号：US10459052B2

公开(公告)日：2019-10-29

申请号：US16067204

申请日：2015-12-30

Applicant: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences

Inventor： Hairong Zheng ,  Xin Liu ,  Chuanli Cheng ,  Chao Zou

IPC: G01R33/56 ,  G01R33/48 ,  A61B5/055 ,  G01R33/44 ,  G01R33/46 ,  G01R33/485 ,  G01R33/565

Abstract: Provided are a magnetic resonance chemical-shift-encoded imaging method, apparatus, and device, belonging to the technical field of magnetic resonance imaging. The method comprises: in a phasor-error plot established on the basis of a two-point magnetic resonance signal model, determining to be an initial seed point a pixel having a unique phasor and causing said plot to reach a minimal local value; according to the initial seed point, estimating the phasor value of a to-be-estimated pixel to obtain a field map; mapping and merging the field map at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain the phasor value of the reconstructed to-be-estimated pixel; according to the reconstructed seed point and the phasor value of the reconstructed to-be-estimated pixel, obtaining two separate images having predetermined components. In the method, a region simultaneously containing two components is identified as a seed point, eliminating the deviation caused by phasor-value jump at high resolution and ensuring the correctness of the seed point ultimately selected.

公开(公告)号：US11699513B2

公开(公告)日：2023-07-11

申请号：US16626661

申请日：2018-12-29

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES ,  SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Dong Liang ,  Chao Zou ,  Qiang He ,  Guobin Li ,  Qiang Zhang ,  Xin Liu ,  Hairong Zheng

IPC: G16H30/20 ,  G16H40/60 ,  G06F21/31 ,  G06F3/12

CPC classification number: G16H30/20 ,  G06F21/31 ,  G16H40/60 ,  G06F3/1204

Abstract: Disclosed are information transmission method, apparatus, device and medium for medical imaging application. The method includes: an imaging device corresponding to an application authorization request is determined according to the received application authorization request, and an application permission profile of the imaging device is acquired; and a medical imaging application corresponding to the imaging device is determined according to the application permission profile of the imaging device, and medical imaging application information corresponding to the medical imaging application is transmitted to the imaging device.