title: [Influence of projection data correction on digital breast tomosynthesis imaging].
abstract: To investigate the effect of detector performance during digital breast tomography (DBT) projection data acquisition on reconstructed image quality.
  
  
  
  With reference to the traditional detector data correction method and the specific data acquisition pattern in DBT imaging, we utilized dark field correction, light field and its gain correction for processing the projection data collected by the detector. The reconstructed images were evaluated using iterative reconstruction method based on total generalized variation (TGV).
  
  
  
  In physical breast phantom experiment, the proposed method resulted in a reduced Heel effect caused by nonuniform photon number. The reconstructed DBT images after correction showed obviously improved image quality especially in the details with a low contrast.
  
  
  
  The dark field correction, light field and its gain correction process for DBT image reconstruction can improve the image quality.
authors.affiliation: Department of Biomedical Engineering, Guangdong Provincial Key Laboratory of Medical Image Processing, Southern Medical University, Guangzhou 510515, China.E-mail: xyzhang08@foxmail.com.
authors.forename: Xin-Yu
authors.initials: XY
authors.lastname: Zhang
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Zhao-Ying
authors.initials: ZY
authors.lastname: Bian
authors.forename: Dong
authors.initials: D
authors.lastname: Zeng
authors.forename: Ji
authors.initials: J
authors.lastname: He
authors.forename: Xiu-Mei
authors.initials: XM
authors.lastname: Tian
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Ma
authors.forename: Jing
authors.initials: J
authors.lastname: Huang
mesh_terms: D000465:Algorithms; D001940:Breast / Q000000981:diagnostic imaging*; D001943:Breast Neoplasms; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008327:Mammography; D019047:Phantoms, Imaging