Key technologies in digital breast tomosynthesis system: theory, design, and optimization
LI Mingqiang
MA Kun
TAO Xi
WANG Yongbo
HE Ji
WEI Ziquan
CHEN Geofeng
LI Sui
ZENG Dong
BIAN Zhaoying
WU Guohui
LIAO Shan
MA Jianhua
Abstract：Objective To develop a digital breast tomosynthesis (DBT) imaging system with optimizes imaging chain.Method Based on 3D tomography and DBT imaging scanning, we analyzed the methods for projection data correction, geometric correction, projection enhancement, filter modulation, and image reconstruction, and established a hardware testing platform.In the experiment, the standard ACR phantom and high-resolution phantom were used to evaluate the system stability and noise level.The patient projection data of commercial equipment was used to test the effect of the imaging algorithm.Results In the high-resolution phantom study, the line pairs were clear without confusing artifacts in the images reconstructed with the geometric correction parameters.In ACR phantom study, the calcified foci, cysts, and fibrous structures were more clearly defined in the reconstructed images after filtering and modulation.The patient data study showed a high contrast between tissues, and the lesions were more clearly displayed in the reconstructed image.Conclusion This DBT imaging system can be used for mammary tomography with an image quality comparable to that of commercial DBT systems to facilitate imaging diagnosis of breast diseases.
Keywords：digital breast tomosynthesisimage chain design and optimizationfiltered back projectiongeometric correctionprojection enhancement
Publication Date：2019-01-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 192-200 )