公开(公告)号：EP4202839A1

公开(公告)日：2023-06-28

申请号：EP22213116.1

申请日：2022-12-13

申请人： Beijing Friendship Hospital, Capital Medical University ,  Tsinghua University

发明人： WANG, Zhenchang ,  XING, Yuxiang ,  ZHNAG, Li ,  YIN, Hongxia ,  CHEN, Zhiqiang ,  LI, Yuanjing ,  LI, Jianmin ,  ZHAO, Pengfei ,  LV, Han ,  ZHANG, Zhengyu ,  LI, Jing

IPC分类号： G06T11/00

摘要： The present disclosure discloses a computerized tomography (CT) reconstruction method and apparatus, an electronic device and a computer-readable storage medium. The method includes: acquiring detailed-view scanning data and full-view scanning data; performing ROI projection estimation on the detailed-view scanning data to obtain detailed-view projection estimation; performing analytical reconstruction processing on the detailed-view projection estimation to obtain first image estimation of a ROI; performing reconstruction on the full-view projection data to obtain second image estimation; and determining high-resolution image of the ROI using an image optimization model according to the first image estimation and first full-view image estimation. According to the embodiments of the present disclosure, a data integrity characteristic of full-view scanning and a high resolution characteristic of detailed-view scanning can be combined to reconstruct a CT image, which not only improves the quality of a reconstructed CT image, but also greatly improves the reconstruction efficiency.

公开(公告)号：EP4201338A1

公开(公告)日：2023-06-28

申请号：EP22214977.5

申请日：2022-12-20

申请人： Beijing Friendship Hospital, Capital Medical University ,  Tsinghua University

发明人： WANG, Zhenchang ,  ZHNAG, Li ,  YIN, Hongxia ,  XING, Yuxiang ,  CHEN, Zhiqiang ,  KANG, Kejun ,  LI, LIANG ,  ZHAO, Pengfei ,  ZHANG, Zhengyu ,  LI, Jing ,  LV, Han

IPC分类号： A61B6/04 ,  A61B6/08 ,  A61B6/00 ,  A61B6/03

摘要： Provided are a CT scanning method and system, an electronic device, and a computer-readable storage medium. The method includes: determining a first coordinate of a mark point of a part to be imaged in a dual-camera coordinate system; converting the first coordinate into a second coordinate of the mark point in a CT coordinate system according to coordinate system transformation parameters; generating first locating information according to the second coordinate to drive a scanning table to move to a first location designated by the first locating information; obtaining projection images of the part to be scanned; determining second locating information and scanning information of the part to be scanned according to the projection images; and driving the scanning table to move to a second location designated by the second locating information according to the second locating information and performing CT scanning according to the scanning information.