Dual-Energy Computed Tomography to Photon Counting Computed Tomography: Emerging Technological Innovations
Shravya Srinivas-Rao, Jinjin Cao, Daniele Marin, Avinash Kambadakone
Radiol Clin North Am . 2023 Nov;61(6):933-944. doi: 10.1016/j.rcl.2023.06.015. Epub 2023 Aug 8.
Computed tomography (CT) has seen remarkable developments in the past several decades, radically transforming the role of imaging in day-to-day clinical practice. Dual-energy CT (DECT), an exciting innovation introduced in the early part of this century, has widened the scope of CT, opening new opportunities due to its ability to provide superior tissue characterization. The introduction of photon-counting CT (PCCT) heralds a paradigm shift in CT scanner technology representing another significant milestone in CT innovation. PCCT offers several advantages over DECT, such as improved spectral resolution, enhanced tissue characterization, reduced image artifacts, and improved image quality.