公开(公告)号：US11191509B2

公开(公告)日：2021-12-07

申请号：US16939161

申请日：2020-07-27

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Yifeng Jiang ,  Yingbiao Liu ,  Yanfeng Du

IPC: A61B6/00 ,  A61B6/03 ,  G06T5/00 ,  A61B6/04

Abstract: The present disclosure relates to a method and a system for computed tomography imaging. The method may comprise obtaining original data; obtaining a preprocessing result by preprocessing the original data; obtaining intensity of the artifact based on the preprocessing result; and updating a damaged channel or the air correction table based on the intensity of the artifact. Updating the air correction table may comprise: obtaining a first air correction table corresponding to a first temperature of detector; obtaining real-time temperature of detector; and obtaining a second air correction table corresponding to the real-time temperature based on the real-time temperature and the first air correction table.

公开(公告)号：US10722204B2

公开(公告)日：2020-07-28

申请号：US15638610

申请日：2017-06-30

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Yifeng Jiang ,  Yingbiao Liu ,  Yanfeng Du

IPC: A61B6/00 ,  A61B6/03 ,  G06T5/00 ,  A61B6/04

Abstract: The present disclosure relates to a method and a system for computed tomography imaging. The method may comprise obtaining original data; obtaining a preprocessing result by preprocessing the original data; obtaining intensity of the artifact based on the preprocessing result; and updating a damaged channel or the air correction table based on the intensity of the artifact. Updating the air correction table may comprise: obtaining a first air correction table corresponding to a first temperature of detector; obtaining real-time temperature of detector; and obtaining a second air correction table corresponding to the real-time temperature based on the real-time temperature and the first air correction table.

公开(公告)号：US11501944B2

公开(公告)日：2022-11-15

申请号：US16894797

申请日：2020-06-06

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Yanfeng Du ,  Yingbiao Liu

IPC: H01J35/06 ,  H01J35/14 ,  H05G1/30 ,  H01J37/24 ,  A61B6/03 ,  H05G1/02

Abstract: The present disclosure relates to a method and system for adjusting a focal point position of an X-ray tube. The method may include: obtaining a first thermal capacity and a first position of a focal point of an X-ray tube; obtaining a second thermal capacity of the X-ray tube; determining a second position of the focal point the X-ray tube based on the second thermal capacity; determining a target grid voltage difference of a focusing cup of the X-ray tube based on the first position and the second position of the focal point; and adjusting the X-ray tube based on the target grid voltage difference.

公开(公告)号：US10679817B2

公开(公告)日：2020-06-09

申请号：US15721778

申请日：2017-09-30

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Yanfeng Du ,  Yingbiao Liu

IPC: H01J35/14 ,  H05G1/30 ,  H01J37/24 ,  H05G1/02

Abstract: The present disclosure relates to a method and system for adjusting a focal point position of an X-ray tube. The method may include: obtaining a first thermal capacity and a first position of a focal point of an X-ray tube; obtaining a second thermal capacity of the X-ray tube; determining a second position of the focal point the X-ray tube based on the second thermal capacity; determining a target grid voltage difference of a focusing cup of the X-ray tube based on the first position and the second position of the focal point; and adjusting the X-ray tube based on the target grid voltage difference.