The influence of photon counting computed tomography of the paranasal sinuses on navigation accuracy and radiation dose

Introduction Computed tomography (CT)-based navigation is of great importance in functional endoscopic sinus surgery (FESS). However, this often requires additional CT scans using navigation-specific protocols which cause additional, yet avoidable radiation exposure. This could be significantly reduced using photon counting CT (PCCT). Therefore, the aim of the present study was to investigate the navigation accuracy of Dual Energy Dual Source CT (DEDS) and PCCT with respect to radiation dose.