Photon-counting CT review. (November 2020)

• Record Type: Journal Article
• Authors: Flohr, Thomas; Petersilka, Martin; Henning, Andre; Ulzheimer, Stefan; Ferda, Jiri; Schmidt, Bernhard
• Is Part Of: Physica medica. Volume 79(2020)
• Page Start: 126
• Page End: 136
• Publication Date: 2020-11
• Subjects: Computed tomography CT -- Photon-counting detector -- Photon-counting CT -- Spectral CT; Medical physics -- Periodicals; Biophysics -- Periodicals; Biophysics -- Periodicals; Imagerie médicale -- Périodiques; Radiothérapie -- Périodiques; Rayons X -- Sécurité -- Mesures -- Périodiques; Physique -- Périodiques; Médecine -- Périodiques; 610.153
• DOI: 10.1016/j.ejmp.2020.10.030
• Languages: English
• ISSNs: 1120-1797

Abstract

Highlights: Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at high spatial resolution without electronic noise and with improved tissue contrasts. Pre-clinical whole-body photon-counting CT prototypes are currently used for pre-clinical testing in human subjects. 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.