Spectral, Photon Counting Computed Tomography is a comprehensive cover of the latest developments in the most prevalent imaging
modality (x-ray computed tomography (CT)) in its latest incarnation: Spectral, Dual-Energy, and Photon Counting CT. Disadvantages
of the conventional single-energy technique used by CT technology are that different materials cannot be distinguished and
that the noise is larger. To address these problems, a novel spectral CT concept has been proposed. Spectral Dual-Energy CT
(DE-CT) acquires two sets of spectral data, and Spectral Photon Counting CT (PC-CT) detects energy of x-ray photons to reveal
additional material information of objects by using novel energy-sensitive, photon-counting detectors. The K-edge imaging
may be a gateway for functional or molecular CT. The book covers detectors and electronics, image reconstruction methods,
image quality assessments, a simulation tool, nanoparticle contrast agents, and clinical applications for spectral CT.