Comparing SNR benefits of single-mask edge-illumination and free-space propagation x-ray phase contrast imaging

Jingcheng Yuan; Ian Harmon; Mini Das

doi:10.1117/12.2613808

11 April 2022 Comparing SNR benefits of single-mask edge-illumination and free-space propagation x-ray phase contrast imaging

Jingcheng Yuan, Ian Harmon, Mini Das

Author Affiliations +

Proceedings Volume PC12031, Medical Imaging 2022: Physics of Medical Imaging; PC120310X (2022) https://doi.org/10.1117/12.2613808
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Conference Poster

Abstract

X-ray phase contrast imaging (PCI) has a great potential for improving the visibility of soft tissues in medical imaging. Single-mask edge-illumination (EI) (also sometime referred to as coded-aperture) phase contrast imaging method has been developed with the ability to obtain differential phase contrast with simpler experimental setup in comparison to grating based or conventional double mask EI PCI. We show results of single-mask PCI and results of differential phase contrast estimation in a single shot. The potential of this single mask PCI to reduce the radiation dose and improved contrast has not been fully investigated yet. In this work we compared the x-ray dose requirement of single-mask method with other methods by analyzing the SNR under different level of detector counts. We also propose and demonstrate a new model based on TIE for differential retrieval from single mask EI PCI with experimental data.

Citation Download Citation

Jingcheng Yuan, Ian Harmon, and Mini Das "Comparing SNR benefits of single-mask edge-illumination and free-space propagation x-ray phase contrast imaging", Proc. SPIE PC12031, Medical Imaging 2022: Physics of Medical Imaging, PC120310X (11 April 2022); https://doi.org/10.1117/12.2613808

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