Low-dose phase-contrast X-ray imaging: a comparison of two methods

11th International Conference on X-ray Microscopy

Zhou, T.^1 ; Lundström, U.^1 ; Larsson, D.H.^1 ; Hertz, H.M.^1 ; Burvall, A.^1

Biomedical and X-Ray Physics, Department of Applied Physics, Royal Institute of Technology, Stockholm 10691, Sweden^1

关键词: Low dose;    Phase contrast method;    Phase contrast X-ray imaging;    Prospective applications;    Small animal imaging;    X-ray phase-contrast imaging;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/463/1/012041/pdf
DOI  :  10.1088/1742-6596/463/1/012041

来源: IOP

【 摘 要 】

Propagation- and grating-based X-ray phase-contrast imaging methods are compared theoretically. As a prospective application of phase-contrast methods in medical or small animal imaging, carbon dioxide (CO2) angiography is the simulated task. The required dose for the observable blood vessel is compared through simulation. The result indicates that the propagation-based method requires lower dose in this application.