Fundamentals of X-Ray Computed Tomography: Acquisition and Reconstruction

Computed tomography (CT) provides a quantitative assessment of tissue properties by the unique linear relationship between signal and CT contrast agents. Clinically, CT is widely used in the acute setting but also for chronic conditions. High radiation dose and the potential for contrast-induced acute kidney injury are the two major challenges for CT. This chapter briefly summarizes the clinical use of CT and presents the physical and technical basis of CT data acquisition and image reconstruction.