CT spectral projection imaging

Dual energy x-ray computed tomography (DECT) has gained a significant attention in recent years. The technology offers the potential to differentiate different materials, and therefore provides the possibility of identifying different pathologies. In this paper, we present a dual-energy projection imaging technique by utilizing the scout data acquisition mode of CT in conjunction with the fast-kVp switching capability. Phantom experiments have shown its advantage in removing overlapping structures and improves the visualization of small structure inside the body.