After the introduction of spiral CT in 1990, wide detector CT in 2004, Dual Source CT in 2005, and Dual Layer CT detectors in 2013, computed tomography is a mature modality that has reached a saturation phase. Despite technological progress, limitations remain for current CT technology.
With photon-counting CT, we are developing a radically new technology for clinical routine. At its core is a new kind of detector that is substantially different from a standard energy integrating detector.
These photon-counting detectors have the potential to overcome the limitations of current CT detectors, by providing CT data at very high spatial resolution, without electronic noise, with improved contrast‐to‐noise ratio, at lower radiation dose, and with intrinsic spectral information.