The revolution of photon-counting CT towards new horizons of diagnostic imaging

Abstract

Photon-counting Computed Tomography (PCCT) is a new computed tomography detection technology that uses photon-counting detectors to convert individual X-ray photons directly into an electrical signal and has the potential to overcome limitations of previous CT systems, such as limited spatial resolution, or lack of spectral information. The upcoming development in PCCT technology promises to enhance image resolution, contrast, and diagnostic accuracy while reducing radiation doses to patients. In this review article, we aim to evaluate the basic principles and potential clinical benefits of PCCT, with particular attention to the constantly evolving recent literature and the changes that this method will meticulously bring to the world of cardiovascular and neuroradiological diagnostic imaging.