Title:
CT IMAGING METHOD AND APPARATUS, STORAGE MEDIUM, AND MEDICAL IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/062885
Kind Code:
A1
Abstract:
Disclosed are a CT imaging method and apparatus, a storage medium, and a medical imaging system. The CT imaging method comprises: acquiring projection data of a target object, the projection data being collected when the target object is detected on the basis of a preset dose of X-ray photons, and the preset dose being smaller than a CT standard dose (S110); and sending the projection data to a pre-trained imaging model, and determining an output image of the imaging model as a CT image of the target object, wherein the imaging model is trained by a CT image at the standard dose and sample projection data which contains noise. The imaging model comprises a first sub-network module, a second sub-network module and a third sub-network module, the first sub-network module is used to perform noise reduction on projection data of a projection domain, the second sub-network module is used to transform the processed projection data so as to generate CT domain data, and the third sub-network module is used to perform noise reduction on the CT domain data so as to generate a CT image of the target object (S120).
Inventors:
GE YONGSHUAI (CN)
LIANG DONG (CN)
ZHU JIONGTAO (CN)
LIU XIN (CN)
ZHENG HAIRONG (CN)
LIANG DONG (CN)
ZHU JIONGTAO (CN)
LIU XIN (CN)
ZHENG HAIRONG (CN)
Application Number:
PCT/CN2019/111028
Publication Date:
April 08, 2021
Filing Date:
October 14, 2019
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
A61B6/00; G06T11/00; G06T5/00
Domestic Patent References:
| WO2018200493A1 | 2018-11-01 |
Foreign References:
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Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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