Advancements in monitoring paranasal sinuses among people with cystic fibrosis using photon-counting CT.

This article focuses on comparing photon-counting computed tomography (PCCT) with energy-integrating detector computed tomography (EID-CT) using low-dose protocols for imaging the paranasal sinuses in people diagnosed with cystic fibrosis (pwCF) who have chronic rhinosinusitis. In a retrospective intra-individual study of 23 adult pwCF, PCCT demonstrated significantly superior image quality, including higher signal-to-noise and contrast-to-noise ratios, and reduced image noise compared to EID-CT. Additionally, PCCT achieved a 36% reduction in effective radiation dose, including lower organ doses to sensitive tissues such as the eye lens and brain. These findings suggest that PCCT offers a safer and more effective imaging alternative for managing cystic fibrosis-related sinus disease, though further research is recommended to optimize dose reduction while maintaining diagnostic quality.