Dual-Energy Technique at Low Tube Voltages for Small Animal Imaging |
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| Authors: | CHOSeungryong SIDKYEmilY BIANJunguo PANXiaochuan |
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| Institution: | CHO+Seungryong,SIDKY+Emil+Y,BIAN+Junguo,PAN+Xiaochuan+Department+of+Radiology,University+of+Chicago,Chicago,IL+60637,USA |
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| Abstract: | We investigate the feasibility of dual-energy method for image contrast enhancement in small animal studies using a low kV X-ray radiographic system.A robust method for X-ray spectrum estimation from transmission measurements,based on expectation-maximization(EM) method,is applied to an X-ray specimen radiographic system for dual energy imaging of a mouse.From transmission measurements of two known attenuators at two different X-ray tube voltages,the X-ray energy spectra are reconstructed using the EM-based... |
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| Keywords: | dual-energy specimen radiography spectrum estimation |
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