Photon-counting CT review

Abstract

Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at very high spatial resolution without electronic noise and with improved tissue contrasts. This review article gives an overview of the principles of photon-counting detector CT, of potential clinical benefits and limitations, and of the experience gained so far in pre-clinical installations.

Keywords: Computed tomography CT; Photon-counting CT; Photon-counting detector; Spectral CT.