Low-dose digital tomosynthesis reconstruction based on field emission flat-panel x-ray source array

Jiayu Duan; Shaohua Zhi; Jianmei Cai; Yang Li; Xuanqin Mou

doi:10.1117/12.2549885

16 March 2020 Low-dose digital tomosynthesis reconstruction based on field emission flat-panel x-ray source array

Jiayu Duan, Shaohua Zhi, Jianmei Cai, Yang Li, Xuanqin Mou

Proceedings Volume 11312, Medical Imaging 2020: Physics of Medical Imaging; 113123O (2020) https://doi.org/10.1117/12.2549885
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

Abstract

As an alternative to conventional sources, field emission x-ray cold cathodes of nanomaterials have been developed in recent years. Many different imaging geometries with this kind of source have been proposed, which has the merits of fast response, low energy consumption, and individually addressable switching ability. In this work, we proposed a novel digital tomosynthesis (DTS) geometry based on field emission flat-panel X-ray source array (FEF X-ray source array) and a reconstruction method based on this new geometry. The new DTS with designed lighting mode has shorter acquisition time and lower dose compared with the traditional DTS scheme. Due to the designed lighting mode, it cannot use a traditional reconstruction algorithm. The proposed reconstructed algorithm builds the relation on photons to solve the reconstruction problem. The simulated result shows that the proposed method can obtain 5pl / mm in the X-Y plane and 2pl / mm in the Z plane which indicates the potential of the proposed reconstruction modality.

Citation Download Citation

Jiayu Duan, Shaohua Zhi, Jianmei Cai, Yang Li, and Xuanqin Mou "Low-dose digital tomosynthesis reconstruction based on field emission flat-panel x-ray source array", Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 113123O (16 March 2020); https://doi.org/10.1117/12.2549885

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KEYWORDS

Light sources and illumination

X-ray sources

Reconstruction algorithms

X-rays

Photons

Switching

Imaging systems

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